The Single Girder Electric Wire Rope Hoist features a compact structure, light weight, and smooth operation, effectively utilizing factory lifting space. It can be used in manufacturing, machining, warehousing and logistics, steel structures, automotive parts, and various assembly workshops, primarily for lifting, transferring, and positioning workpieces, equipment, and raw materials.
The product supports multiple operating modes, including ground buttons, wireless remote control, and variable frequency control. It is also equipped with overload protection, upper and lower limit switches, and a reliable braking system, offering high safety, stable operation, easy maintenance, and excellent cost-effectiveness.

It can be installed on Single Girder Overhead Travelling Crane or Single Girder Gantry Crane .

types

Parts

Working Principle

Single girder electric wire rope hoist ​types

Single girder electric wire rope hoists can be divided into CD1 type and MD1 type according to their lifting speed.

CD1 Type – Single-Speed Electric Wire Rope Hoist

Single-speed motors typically have a lifting speed of 8 m/min and are suitable for conventional loading and unloading operations, such as organizing warehouse shelves.

• Rated Lifting Capacity: 1–20 tons
• Lifting Speed: 8 m/min (single speed)
• Lifting Height: 6–30 m
• Duty Class: M3
• Power Supply: 380V / 50Hz / 3Ph (customizable)

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MD1 Type – Double-Speed Electric Wire Rope Hoist

This is a dual-speed motor with a normal speed of 8 m/min and a slow speed of 0.8 m/min, suitable for applications requiring precise positioning, such as precision installation and machine tool maintenance.

• Rated Lifting Capacity: 1–20 tons
• Lifting Speed: 8 / 0.8 m/min (fast & slow speed)
• Lifting Height: 6–30 m
• Duty Class: M4–M5
• Power Supply: 380V / 50Hz / 3Ph (customizable)

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Single girder electric wire rope hoist​ Parts

The electric wire rope hoist with trolley features a robust and durable structural design, with key components working together to ensure safe, stable, and efficient performance.

Motor: Hoist Motor is an taper type rotor motor with braking,it is made by Nanjing special motor factory,it is of the best quality motors, it has bigger torque, so it can be adapted to moving frequently.
Trolley: It is assembled and has running wheels. Herein, the runner wheels are mounted on top-class sealed ball bearings.
Gear Box: Hoist Gear Box has specially treated gears for high wear resistance. Each Geared Shaft assembly is supported on ball or roller bearings , to ensure smooth, low-friction operation.
Wire Rope: Hoisting rope comply with the exporting ISO standards. The leading rope taken by the Drum, does not slip sideways when slack. The factor of safety, on the nominal breaking strength of the rope is six.
Rope Drum: Grooved Drum, seamless pipe of adequate length to be wounded in one layer and to provide proper support for the rope to minimize abrasive wear is provided. Drum Shaft resolves on Ball Bearings for ensuring smooth running.
Electric control system: Model CD1 and MD1 is composed of the contactor box,controlling switch,cut-off limiter.the working voltage of controlling switch is 380V,36V or 24V(safety voltage).
Rope Guide: Rope Guide is in two halves, ensuring easy accessibility. It encircles the Drum completely so that the rope may not uncoil even when the Hoist is in unloaded condition.
Hook: The Hook Block is tested to 150 % of full load before assembly. The rope sheaves are fully guarded with protective steel casting .

Working Principle

The working principle of a single-girder electric wire rope hoist is the synergistic action of electric drive and mechanical transmission. When powered on, the hoist motor drives the gearbox to rotate, causing the drum to wind or unwind the wire rope, thereby vertically lifting or lowering the load. The load is supported by a hook assembly and guided by a pulley system, ensuring smooth movement and precise positioning.
This hoist is mounted on a trolley that runs along a single girder, allowing for horizontal movement along the crane span, enabling three-dimensional material handling. A braking system integrated into the motor ensures immediate stopping and load holding, while limit switches, overload protection, and electrical control systems guarantee safe operation. With a rated lifting capacity of 1-20 tons, a lifting speed of 8 meters/minute or dual speed of 8/0.8 meters/minute, and a working class of M3 to M5, the single-girder electric wire rope hoist provides a smooth, reliable, and precise material handling solution for industrial applications.

single girder electric wire rope hoist parts

Single-girder electric wire rope hoists have a simple component structure, are robust and durable, and offer reliable performance. The following are the main components that make up this lifting hoist:

Reducer

three helical gear transmission mechanism gears and gear shafts : heat-treated alloy steel box : high quality cast iron

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Wire Rope

use GB1102-74 (6 * 37 +1)-type lifting rope，Strong fatigue resistance and stable load-bearing capacity.

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Conical Motor

lifting starting torque, running motor , rotor brake motor motor with B grade or F grade insulation electrical protection class IP44 or IP54.

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Control Box

an emergency to cut off the main circuit with a trip up and down off the fire protection stopper device

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Single girder electric wire rope hoist​ specifications

Before choosing a Electric Wire Rope Hoist for Overhead Crane, it’s essential to understand its technical specifications, as these directly determine its lifting capacity, operating efficiency, and suitability for different working conditions.

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Custom Single girder electric wire rope hoist​

As an experienced OEM and industrial hoist supplier, we provide customized single-girder wire rope electric hoist solutions. You can flexibly customize lifting capacity, lifting height, lifting speed, duty class, and installation methods to meet your specific requirements.

Custom single-girder wire rope electric hoists can be equipped with single-speed or dual-speed (CD1/MD1) options, variable frequency speed control, low-headroom designs, and support multiple operation methods including floor push buttons and wireless remote controls.

Contact our team of professional engineers to design a customized lifting equipment solution that is safer, more stable, and offers better value for your needs.

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Single girder Electric Wire Rope Hoist Manufacturer

As a leading single-girder electric wire rope hoist manufacturer, Weihua Crane has specialized in lifting equipment design and manufacturing since 1988. Weihua Crane operates a modern manufacturing base covering over 3.42 million square meters, equipped with advanced CNC machining centers, automated welding lines, precision assembly workshops, and comprehensive testing laboratories.

Beyond manufacturing, Weihua Crane delivers end-to-end lifting solutions for B2B customers worldwide. Services include technical consultation, solution design, installation and commissioning, equipment retrofitting, routine maintenance, emergency repair support, and operator training.

If you are looking for a reliable single girder electric wire rope hoist manufacturer with strong factory strength and global service capability, contact Weihua’s professional engineering team to discuss your project requirements and customized lifting solutions.

An explosion proof wire rope hoist is a motorized lifting device that uses a steel wire rope wound around a sealed drum to raise and lower heavy loads in hazardous environments. Unlike a standard electric wire rope hoist, every electrical and mechanical component is enclosed within flameproof housings, constructed from spark-resistant alloys, and tested to international explosion-proof standards before leaving the factory.

The core principle is containment and spark elimination: if an internal fault generates heat or a spark, the sealed enclosure prevents that energy from reaching the surrounding explosive atmosphere. At the same time, all external moving parts — wire rope, hook, drum, and trolley wheels — are manufactured from non-sparking materials to eliminate surface ignition risk.

This makes the explosion proof wire rope hoist the standard lifting solution wherever the atmosphere may contain flammable gases or vapors (IIA, IIB, or IIC gas groups) or combustible dust, and where a conventional hoist would represent an unacceptable safety risk.

Technical Specifications

Where Is an Explosion Proof Wire Rope Hoist Used?

The explosion proof wire rope hoist is designed for any facility where the presence of flammable substances creates a classified hazardous area. Common industries and applications include:

Oil & Gas Refineries, wellheads, compressor stations, and offshore platforms regularly require lifting of heavy pumps, valves, and pressure vessels in Zone 1 or Zone 2 gas atmospheres. The explosion proof wire rope hoist is the standard solution for this environment, offering the load capacity and lift height to handle large equipment safely.

Petrochemical & Chemical Plants Process areas handling hydrocarbons, solvents, chlorine compounds, or other flammable chemicals require ATEX-rated lifting equipment throughout the facility. The Ex dⅡCT4 rating covers the most demanding chemical environments, including those with hydrogen-based atmospheres (IIC gas group).

Pharmaceutical Manufacturing Solvent-based processes and active pharmaceutical ingredient (API) synthesis areas frequently fall under Zone 1 or Zone 2 classification. An explosion proof wire rope hoist for pharmaceutical use is typically specified with IP66 protection and stainless steel options for hygienic compatibility.

Gas Stations & LPG/LNG Facilities Liquefied petroleum gas, liquefied natural gas, and compressed natural gas facilities require explosion-proof lifting equipment rated for IIB or IIC gas groups, particularly in storage and dispensing areas.

Mining Underground coal mines and surface mineral processing plants generate combustible methane and coal dust atmospheres. Mining-certified explosion-proof hoists carry additional Mine Safety Certificate documentation beyond standard ATEX/IECEx requirements.

Food Processing & Grain Handling Flour mills, grain storage facilities, and sugar processing plants generate fine combustible dust classified as Zone 21 or Zone 22. An explosion proof wire rope hoist for dust environments is specified for these applications, covering the dust explosion protection requirements of GB 12476.3-2007.

Shipbuilding & Offshore Shipyard paint shops, confined spaces, and offshore platform lifting points all require explosion-proof rated hoists due to the presence of coating solvents, fuel vapors, and gas supply lines.

Wastewater Treatment & Power Generation Biogas production areas in wastewater plants, and fuel handling areas in power stations, are classified hazardous zones requiring explosion-proof lifting equipment for maintenance and overhaul work.

Hazardous Zone Classification Reference

Explosion-Proof Certifications

Every explosion proof wire rope hoist in this product range carries full documentation for the following certification bodies:

All certification documents are provided with delivery and are available for customer review during procurement. Traceability documentation supports facility compliance audits and regulatory inspections.

Explosion Proof Wire Rope Hoist vs Standard Wire Rope Hoist

Understanding the difference between an explosion proof hoist and a standard hoist is essential for correct equipment selection in any facility risk assessment.

Selection rule: Any lifting operation in a classified hazardous area (Zone 1, 2, 21, or 22) requires an explosion-proof rated hoist. Using a standard hoist in a hazardous zone is a safety violation and regulatory non-compliance regardless of operational precautions taken.

About Weihua Explosion Proof Wire Rope Hoists

Weihua is a professional explosion proof wire rope hoist manufacturer and supplier based in China, with over 37 years of experience in lifting equipment design and manufacturing. All Weihua explosion proof wire rope hoists are produced under a rigorous quality management system certified to ISO 9001, and every unit carries full ATEX, IECEx, and CE certification for operation in Zone 1 and Zone 2 hazardous areas.

Weihua provides a global after-sales service network, a one-year product warranty, and long-term spare parts availability for all explosion proof hoist models. Our engineering team is available to support custom hoist specifications, hazardous area crane system integration, and on-site installation guidance.

We also offer a comprehensive range of explosion-proof and standard lifting equipment solutions, including explosion proof electric chain hoists, explosion proof overhead cranes, gantry cranes, and jib cranes. Contact our engineering team today for a customized explosion proof wire rope hoist solution tailored to your site classification and load requirements.

An electric chain hoist — also referred to as an electric hoist, motorized chain hoist, or electric chain block — is a mechanical lifting device powered by an electric motor. It uses a motor-driven sprocket to move a high-strength load chain, enabling the controlled vertical movement of heavy loads at the push of a button.

Unlike manual chain hoists that rely entirely on human effort, an electric chain hoist delivers consistent lifting speed, lower operator fatigue, and the ability to perform a high volume of lifts continuously throughout the working day. Electric chain hoists are commonly mounted on fixed beams, monorail systems, or overhead traveling cranes to form a complete material handling solution.

Why Choose an Electric Chain Hoist?

• Push-button operation — minimal operator effort for every lift
• High lifting speed — 3 to 12 m/min for efficient throughput
• Consistent performance — same speed and force on every cycle
• Suitable for high-frequency use — rated for 50+ lifts per day
• Precise load positioning — dual-speed models allow fine adjustment
• Easily integrated with overhead crane systems and automation lines

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Types

Parts

Working Principle

Types of Electric Chain Hoists

Weihua electric chain hoists are available in multiple configurations to match a wide range of operating conditions, installation requirements, and load capacities.

By Mounting and Travel Configuration

Type	Description	Best For
Stationary Electric Chain Hoist	Fixed mounting; lifts vertically in one position	Press shops, assembly stations, maintenance pits
Push Travel Electric Chain Hoist	Manually pushed along a monorail beam	Small workshops, low-frequency lateral movement
Motor Travel Electric Chain Hoist	Motorized trolley for powered beam travel	Production lines requiring frequent horizontal positioning
Low Headroom Electric Chain Hoist	Compact design with reduced hook-to-hook distance	Facilities with limited vertical clearance
Double Rail Electric Chain Hoist	Runs on double-girder overhead crane bridge	Heavy-duty applications, large crane spans

 

By Phase and Voltage

Power Supply	Typical Voltage	Application
Single-phase	110 V / 220 V	Light workshops, small facilities
Three-phase	380 V / 415 V / 440 V	Industrial standard; most common configuration
Custom voltage	On request	Export markets, special installations

By Rated Capacity

Capacity Range	Typical Models	Common Applications
Light-duty	0.1 t / 0.25 t / 0.5 t	Electronics, light assembly, small parts
Medium-duty	1 t / 2 t / 3 t	Machining, warehousing, vehicle assembly
Heavy-duty	5 t / 10 t / 16 t	Steel fabrication, heavy equipment
Extra heavy-duty	20 t / 32 t	Shipyards, foundries, heavy industry

 

By Special Application

Type	Description	Best For
Explosion-Proof Electric Chain Hoist	ATEX-rated motor and enclosure	Petrochemical, pharmaceutical, mining
Stainless Steel Electric Chain Hoist	Corrosion-resistant materials throughout	Food processing, pharmaceutical, marine
Variable Frequency Electric Chain Hoist	VFD-controlled motor for stepless speed adjustment	Precision assembly, fragile load handling
Ultra-Low Headroom Electric Chain Hoist	Minimum possible hook-to-hook distance	Extremely space-constrained environments

 

Key Components of an Electric Chain Hoist

Each component of an electric chain hoist plays a critical role in delivering safe, reliable, and efficient lifting performance. Understanding these parts helps with correct installation, routine maintenance, and fault diagnosis.

Component Overview

The operating principle of an electric chain hoist combines electric motor power, mechanical gear reduction, and electromagnetic braking into a compact, highly efficient lifting system.

Step-by-Step Working Principle

Step 1 — Operator Command: The operator presses the “up” or “down” button on the pendant control. This sends a signal to the motor contactor, which connects the electric motor to the power supply.

Step 2 — Motor Activation and Brake Release: The electric motor starts rotating. Simultaneously, the electromagnetic brake releases — the brake coil is energized, overcoming the spring force that holds the brake disc closed, allowing the drive shaft to rotate freely.

Step 3 — Gear Reduction and Torque Amplification: The motor drives the gearbox input shaft at full motor speed (typically 1,400–2,800 RPM). The multi-stage helical gear reduction reduces this to a slow, high-torque output (typically 10–60 RPM at the sprocket), producing enough force to lift the rated load.

Step 4 — Chain Movement: The gearbox output drives the load chain sprocket, which engages the load chain. Depending on the motor rotation direction, the chain is either wound up (raising the load) or paid out (lowering the load) in a controlled, consistent motion.

Step 5 — Load Holding and Brake Engagement: When the operator releases the button, the motor stops and the electromagnetic brake engages instantly — the spring force clamps the brake disc, holding the load at its current height with zero drift.

Key Features and Benefits

• Push-button operation — full up/down and travel control from a pendant or wireless remote; no physical effort required from the operator
• High lifting speed — standard models lift at 3–8 m/min; dual-speed models add a slow creep speed (typically 1/6 of full speed) for precise positioning
• Electromagnetic fail-safe brake — load is held securely at any height even during power interruption; no manual holding required
• Built-in overload protection — mechanical slip clutch or electronic sensor prevents operation above rated capacity, protecting both equipment and personnel
• Dual travel option — motor trolley models provide powered horizontal travel along beams, enabling full X-Y coverage of the work area
• Compact and lightweight design — modern electric chain hoists are significantly smaller and lighter than wire rope hoists of equivalent capacity, reducing installation headroom requirements
• VFD compatibility — variable frequency drive option enables smooth acceleration, precision positioning, and reduced mechanical wear
• Low maintenance design — sealed gearbox with lifetime lubrication, IP55 motor protection, and Grade 80/100 load chain minimize routine maintenance requirements
• Wide capacity range — single product family covers 0.1 t to 32 t, simplifying procurement and spare parts management
• Wireless remote control (select models) — allows the operator to move freely around the load for improved visibility and safety

Electric Chain Hoist vs. Manual Chain Hoist

Selecting the right hoist type is one of the most important decisions in any material handling project. The following comparison covers all key decision factors between electric and manual chain hoists.

Electric Chain Hoist Specifications

The tables below provide full technical specifications for Weihua standard, low-headroom, and explosion-proof electric chain hoist product lines.

Standard Electric Chain Hoist — Full Specification Table

Dual lifting speed shown as full speed / creep speed. Single-speed models also available. Custom lift heights (6 m / 9 m / 12 m / 18 m / 24 m) on request.

Low Headroom Electric Chain Hoist — Specification Table

Explosion-Proof Electric Chain Hoist — Specification Table

Motor Trolley Travel Speeds (Motor Travel Models)

Standards and Certifications

All Weihua electric chain hoists are designed, manufactured, and tested to meet leading international safety and performance standards.

Buying Guide: How to Choose the Right Electric Chain Hoist

Choosing the correct electric chain hoist requires a structured approach. Consider the following factors before making a selection:

1. Determine the Required Rated Capacity

Select an electric chain hoist with a rated capacity at least 25% above your maximum working load. For example, for a maximum load of 4,000 kg, choose a 5 t model. Never operate an electric hoist at or above its rated limit.

2. Assess Duty Class and Daily Lift Frequency

Electric chain hoists are classified by duty class (FEM / ISO M class) based on the number of lifts per day and the average load ratio. Selecting the correct duty class is essential for equipment longevity:

3. Choose the Correct Lift Height

Standard lift heights are 3 m and 6 m. For tall buildings, high-bay warehouses, or deep shafts, custom lift heights of 9 m, 12 m, 18 m, and 24 m are available. Always confirm the available headroom before specifying lift height.

4. Evaluate the Operating Environment

• Standard indoor use: Standard IP55 model is appropriate.
• Wet, wash-down, or high-humidity environments: Specify IP65 or higher motor protection.
• Corrosive, chemical, or marine environments: Specify stainless steel model.
• Flammable gas or explosive dust atmospheres: Specify ATEX-rated explosion-proof model.
• Limited headroom: Specify low-headroom or ultra-low-headroom model.

5. Decide on Travel Configuration

• Single fixed point lifts only: Stationary hoist with top hook is sufficient.
• Lateral movement along a single beam: Add a push trolley (manual) or motor trolley (powered).
• Full area coverage on a rectangular floor plan: Integrate with a full overhead traveling crane system.

6. Consider Control Options

• Standard pendant: Cost-effective, reliable, suitable for most applications.
• Wireless remote: Improves operator visibility and safety around the load.
• VFD control: Required for precision assembly, fragile loads, or automated systems.

7. Verify Certification and Supplier Capability

Always purchase electric chain hoists from a manufacturer with documented CE, ISO, and relevant regional certifications. Confirm that the supplier can provide after-sales service, spare parts availability, and technical support in your region.

About Weihua Electric Chain Hoists

Weihua is a professional electric chain hoist manufacturer and supplier based in China, with over 37 years of experience in lifting equipment design and manufacturing. All Weihua electric chain hoists are produced under a rigorous quality management system certified to ISO 9001, and all products are CE-marked in compliance with the European Machinery Directive.

Weihua provides a global after-sales service network, a one-year product warranty, and long-term spare parts availability for all hoist models. Our engineering team is available to support custom hoist specifications, crane system integration, and on-site installation guidance.

We also offer a comprehensive range of lifting equipment solutions, including manual chain hoists, overhead traveling cranes, gantry cranes, and jib cranes. Contact our engineering team today for a customized electric chain hoist solution tailored to your requirements.

15+ Years Exp.

10,000+ Customers

150+ Countries

Ella

Crane Mechanical Engineer&nbsp

“With 10+ years of technical expertise at Weihua Group, I deliver reliable and intelligent lifting solutions tailored to your global industrial needs.”

• Consultation: Site-specific configurations & capacity selection.
• Projects: Gantry, Port, Marine & Overhead crane solutions.
• Support: Lifecycle maintenance & technical optimization.

WhatsApp: +8613781917315 Email: info@henanweihua.com Inquiry

A manual chain hoist — also known as a hand chain hoist, chain block, or chain pulley block — is a mechanical lifting device that uses human force applied through a hand chain to raise, lower, or suspend heavy loads vertically. The internal gear reduction system multiplies the operator’s input force, allowing a single person to lift loads many times their own strength with minimal effort.

Manual chain hoists are compact, lightweight, and completely independent of electrical power. As a result, they are widely used in manufacturing plants, construction sites, mines, shipyards, warehouses, and emergency rescue operations worldwide.

Why Choose a Manual Chain Hoist?

• No power source needed — operate anywhere, anytime
• Lightweight and portable — easy to carry to any job site
• Mechanical self-locking — loads stay secure without holding
• Low maintenance cost — simple structure with replaceable parts
• Long service life — 10 to 20 years with proper maintenance

Types

Parts

Working Principle

Types of Manual Chain Hoists

Manual chain hoists are available in several configurations, each designed to meet specific working conditions and load requirements. Understanding the differences between types helps you select the most appropriate hand chain hoist for your application.

By Mechanical Structure

Type	Description	Best For
Standard Manual Chain Hoist	Most common type; uses worm gear or planetary gear reduction	General lifting, installation work
Low Headroom Chain Hoist	Shortened hook-to-hook distance for tight spaces	Indoor work with limited vertical clearance
Explosion-Proof Chain Hoist	Brass/aluminum alloy components that prevent sparks	Petrochemical, mining, and flammable environments
Stainless Steel Chain Hoist	304/316 stainless steel construction	Food processing, pharmaceutical, marine applications
Lightweight Portable Chain Hoist	Minimized weight for easy transport	Field work, remote sites, temporary rigging
Heavy-Duty Chain Hoist	Rated capacity of 20t and above	Shipyards, heavy equipment installation

By Rated Capacity

Capacity Range	Typical Models	Common Applications
Light-duty	0.25t / 0.5t	Auto repair, light industry
Medium-duty	1t / 2t / 3t	Mechanical installation, warehousing
Heavy-duty	5t / 10t / 16t	Construction, equipment maintenance
Extra heavy-duty	20t / 30t / 50t	Shipyards, heavy industry

Key Components of a Manual Chain Hoist

Understanding the components of a manual chain hoist is essential for correct operation, routine inspection, and safe maintenance. Every part plays a specific role in the overall lifting mechanism.

Component Overview

No.	Component Name	Description
1	Hand Wheel Cover	Protects the internal hand chain wheel and prevents dust or debris entry.
2	Hand Chain Wheel	Drives the hoist mechanism when the hand chain is pulled.
3	Hand Chain	Operated manually to lift or lower the load.
4	Chain Stop	Prevents over-travel of the chain for safe operation.
5	Friction Disc	Core part of the braking system to hold the load securely.
6	Hand Chain Wheel Bearing	Supports smooth rotation of the hand chain wheel.
7	Hand Chain Wheel Bushing	Reduces friction and wear during operation.
8	Intermediate Side Plate	Provides structural support between internal components.
9	Hand Chain Pawl	Engages with the ratchet system to prevent reverse movement.
10	Top Hook	Connects the hoist to the overhead support structure.
11	Top Hook Latch	Safety latch to secure the top hook connection.
12	Load Chain Sprocket	Guides and drives the load chain during lifting.
13	Load Chain	Directly bears and lifts the load.
14	Load Chain Guide	Ensures proper alignment of the load chain.
15	Side Plate (Frame)	Main structural frame housing internal components.
16	Gear (Pinion)	Transfers motion within the gear system.
17	Gear (Drive)	Amplifies force to enable lifting of heavy loads.
18	Through Shaft	Connects and aligns rotating components across the hoist.
19	Gear Cover / End Plate	Encloses and protects the gear assembly.
20	Cover Nuts	Fasten and secure the housing components.
21	Bottom Hook	Attaches to the load being lifted.
22	Bottom Hook Latch	Prevents the load from slipping off the hook.
23	Hook Pin	Connects hook components securely.
24	Hook Pin Nut	Locks the hook pin in place for safety.

How a Manual Chain Hoist Works

The working principle of a manual chain hoist is based on mechanical advantage through gear reduction. This straightforward yet highly effective mechanism allows a single operator to safely lift loads that would otherwise require a team or powered equipment.

Step-by-Step Working Principle

Step 1 — Operator Input: The operator pulls the hand chain, which rotates the hand chain wheel. This is the only manual input required to operate a chain block.

Step 2 — Gear Reduction and Force Multiplication: The hand chain wheel drives a multi-stage gear reduction train. With a typical gear ratio of 20:1 to 40:1, the output torque is multiplied significantly — meaning that a pull force of around 200–400 N on the hand chain can lift a load of 1,000 kg or more.

Step 3 — Load Chain Movement: The amplified torque drives the load chain sprocket, which raises or lowers the load chain — and therefore the attached load — in a controlled manner.

Step 4 — Self-Locking Brake Engagement: When the operator releases the hand chain, the ratchet brake engages automatically. The load’s own weight creates a reverse torque, which forces the pawl to lock against the ratchet wheel. The load remains suspended safely at any height without any input from the operator.

Self-Locking Mechanism Explained

The ratchet brake is the core safety feature of every manual chain hoist:

• During lifting: The pawl overrides the ratchet teeth, allowing the chain to wind freely.
• At rest: Reverse torque from the suspended load forces the pawl to engage, locking the mechanism in place.
• During lowering: The operator pulls the hand chain in the reverse direction, applying enough force to overcome the brake torque and allow controlled load descent.

Safety factor: The minimum breaking load of a manual chain hoist load chain must be at least 4 times the rated capacity (4:1 safety factor), in compliance with EN 13157 and ASME B30.21 international standards.

Key Features and Benefits

• Overload Protection (select models) — Built-in load limiter slips automatically when load exceeds ~125% of rated capacity, protecting both hoist and operator

• No Power Required — Operates anywhere without electricity; ideal for remote sites, underground mines, vessels, and emergency operations

• Compact & Lightweight — 0.5t model weighs just 3.5 kg; 3t model ~17 kg; easy for one person to carry and install

• Mechanical Self-Locking — Built-in ratchet brake locks automatically at any lift position; load stays secure even when operator releases the hand chain

• Low Total Cost of Ownership — Simple structure means fewer failures; load chains, hooks, and brake pads are inexpensive and easy to replace

• Hazardous Environment Ready — Explosion-proof models eliminate spark risk; stainless steel models resist corrosion in chemical or marine environments

Manual Chain Hoist vs. Electric Chain Hoist

Choosing between a manual chain hoist and an electric chain hoist depends on your specific working conditions, frequency of use, and budget. The following comparison covers all the key decision factors:

Standard Manual Chain Hoist — Full Specification Table

Custom lift heights available: 3 m / 5 m / 6 m / 9 m / 12 m / custom on request.

Low Headroom Manual Chain Hoist — Specification Table

Explosion-Proof Manual Chain Hoist — Specification Table

Standards and Certifications

Our manual chain hoists are designed, manufactured, and tested to meet the most widely recognized international safety and quality standards. Compliance with these standards ensures reliable performance and protects both operators and assets.

Buying Guide: How to Choose the Right Manual Chain Hoist

Selecting the correct manual chain hoist for your application requires careful consideration of several key factors. Follow these guidelines to make an informed purchasing decision:

1. Determine the Required Rated Capacity

Always select a manual chain hoist with a rated capacity at least 25% higher than your maximum load weight. For example, if your heaviest load is 2,000 kg, choose a 3t chain hoist. Never operate a hand chain hoist at or beyond its rated limit.

2. Choose the Right Lift Height

Standard lift height for most manual chain hoists is 3 meters. However, if your application requires lifting over greater distances — such as in high-bay warehouses or tall industrial structures — custom lift heights of 5 m, 6 m, 9 m, or 12 m are available on request.

3. Assess Your Working Environment

• Standard indoor or dry outdoor use: Choose a standard manual chain hoist.
• Wet, humid, or corrosive environments: Choose a stainless steel chain hoist.
• Flammable gas or dust atmospheres: Choose an explosion-proof (ATEX-rated) chain hoist.
• Limited vertical clearance: Choose a low-headroom chain hoist.

4. Consider Frequency of Use

A manual chain hoist is most cost-effective when the lifting frequency is low to moderate (up to 20–30 lifts per day). For higher frequencies, an electric chain hoist will improve productivity and reduce operator fatigue.

5. Verify Certification and Compliance

Always purchase manual chain hoists from manufacturers or suppliers who can provide documentation of compliance with EN 13157, ASME B30.21, or equivalent regional standards. Look for CE, GS, or other recognized certifications on the product label.

6. Budget and Total Cost of Ownership

While the initial cost of a manual chain hoist is significantly lower than that of an electric model, it is equally important to factor in long-term maintenance costs, operator labor, and expected service life when making a final decision.

Manual Chain Hoist Manufacturer and Supplier

Weihua is a professional manual chain hoist manufacturer and supplier based in China, with over 37 years of experience in lifting equipment design and manufacturing. Drawing on extensive project experience across industrial plants, construction sites, shipyards, and mining operations, Weihua delivers reliable and customized manual chain hoist solutions for every application.

All products are manufactured under a strict quality control system, fully compliant with CE and ISO standards, ensuring outstanding safety performance and long-term durability. We provide a global after-sales service network and a one-year warranty on all chain hoist products.

We also offer a wide range of lifting equipment solutions, including electric chain hoists, lever hoists, and overhead crane systems. Contact our engineering team today for a customized manual chain hoist solution tailored to your requirements.

15+ Years Exp.

10,000+ Customers

150+ Countries

Ella

Crane Mechanical Engineer&nbsp

“With 10+ years of technical expertise at Weihua Group, I deliver reliable and intelligent lifting solutions tailored to your global industrial needs.”

• Consultation: Site-specific configurations & capacity selection.
• Projects: Gantry, Port, Marine & Overhead crane solutions.
• Support: Lifecycle maintenance & technical optimization.

WhatsApp: +8613781917315 Email: info@henanweihua.com Inquiry

A hydraulic winch is a powered mechanical device that converts hydraulic energy into rotational force to wind a steel wire rope onto a drum, generating the pulling or lifting force required to move, anchor, or position heavy loads. The hydraulic motor receives pressurized fluid from an external hydraulic power unit (HPU) or the host machine’s existing hydraulic system, eliminating the need for a separate electrical power supply at the winch location.

The defining characteristics of a hydraulic winch — compared to an electric winch of equivalent rated capacity — are its ability to operate at full torque from zero speed, sustain continuous duty cycles without overheating, maintain precise control at very low line speeds, and stall safely under overload without mechanical damage. These properties make the hydraulic winch the standard solution for marine mooring and anchor handling, offshore platform operations, mining haulage, oilfield pipe-laying, and heavy construction work where electric power is unavailable, unreliable, or insufficient.

The term hydraulic winches refers to the broader product family covering all capacity ranges, mounting configurations, and application types. Whether the application requires a compact 1 t mooring winch or a 100 t offshore towing winch, the core operating principle — hydraulic motor driving a geared drum through a fail-safe brake — is consistent across the full product range of hydraulic winches available from Weihua.

Types

Parts

Working Principle

Weihua hydraulic winches are classified by drum structure. Selecting the correct configuration depends on the number of independent rope lines required, the need for synchronized lifting, and the total load capacity of the application.

Single-Drum Hydraulic Winch

A single-drum hydraulic winch uses one drum driven by a hydraulic motor to wind and unwind a single wire rope for lifting or pulling operations. The overall structure is straightforward, controls are simple, and the unit is easy to install and maintain. Single-drum hydraulic winches cover the full capacity range from 1 t to 100 t and are the standard configuration for the majority of marine, construction, mining, and industrial traction applications.

Typical applications: Ship mooring and anchor handling, construction site pulling, inclined shaft haulage, offshore deck winches, pipeline and cable laying.

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Double-Drum Hydraulic Winch

A double-drum hydraulic winch is equipped with two independent or mechanically interlinked drum systems, each driven by its own hydraulic motor or by a shared drive with clutch separation. The two drums can operate synchronously — for balanced lifting of a single load across two rope lines — or independently, controlling two separate loads or rope paths simultaneously. Compared to a single-drum configuration, the double-drum hydraulic winch provides greater total lifting capacity, effective load balancing across the lift points, and more precise control in multi-point lifting and positioning operations.

Typical applications: Heavy marine crane hoisting systems, offshore platform equipment handling requiring balanced two-point lift, large ship mooring systems with independent fore and aft lines, synchronized cable-laying operations.

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Key Components of a Hydraulic Winch

• Drum — The wire rope drum is the core load-bearing element of the hydraulic winch, precision-machined with helical grooves to guide the wire rope in orderly, layer-by-layer winding. Drum diameter and length are sized to the specified wire rope diameter and total rope capacity of each winch model.
• Reducer and Brake — A multi-stage gear reducer converts the high-speed, low-torque output of the hydraulic motor into the low-speed, high-torque drive required to rotate the drum under full rated load. The spring-applied brake is integrated into the reducer assembly and engages automatically when hydraulic pressure is removed, locking the drum and holding the load securely at any position without power.
• Hydraulic Motor — Converts pressurized hydraulic fluid from the pump into rotational mechanical energy to drive the reducer and drum. Motor displacement is matched to the required pulling force and line speed of each winch model, delivering full rated torque from zero speed.
• Hydraulic Pump — Supplies pressurized hydraulic fluid to the motor and control system. The pump draws from the hydraulic oil tank and builds system pressure to the working pressure of the winch model (140–315 bar). The pump may be part of a dedicated hydraulic power unit supplied with the winch or integrated into the host machine’s existing hydraulic system.
• Control System — The hydraulic control valve block manages fluid direction, pressure, and flow to the motor, providing pay-in/pay-out direction control, load-limiting pressure relief, and stepless speed regulation through flow control. The control system interfaces with the operator pendant, remote control, or PLC for manual, semi-automated, or fully automated operation.
• Frame — The welded structural steel base frame carries all winch components and transmits the full static and dynamic loads generated during operation to the mounting structure. Frame geometry is designed for the specified mounting configuration — base plate, flange mount, or integrated deck mount — and is finished with a corrosion-resistant coating system suited to the operating environment.

Working Principle of a Hydraulic Winch

Step 1 — Hydraulic Power Supply The hydraulic power unit starts and builds system pressure to the working pressure specified for the winch model (140–315 bar depending on capacity). Pressurized hydraulic fluid is routed through the control valve block to the hydraulic motor.

Step 2 — Operator Command & Valve Actuation The operator commands pay-in (drum wind) or pay-out (drum unwind) via the pendant control or remote system. The directional control valve in the valve block shifts, routing pressurized fluid to the appropriate port of the hydraulic motor and returning low-pressure fluid to the tank.

Step 3 — Brake Release When the directional valve opens and system pressure builds, a pilot signal releases the spring-applied brake, allowing the drum to rotate. The brake remains released for as long as the operator holds the command and system pressure is maintained.

Step 4 — Motor Drive & Torque Transmission High-pressure fluid drives the hydraulic motor, generating rotational torque. The gearbox reduces motor speed and multiplies torque at the drum shaft, providing the pulling force required to wind the wire rope and lift or pull the rated load at the specified line speed.

Step 5 — Speed Control The operator adjusts the flow control valve opening to vary the hydraulic fluid flow rate to the motor, providing stepless (infinite) speed control from near-zero to maximum line speed. Unlike an electric winch, which requires a variable frequency drive for speed control, the hydraulic winch achieves full stepless control through the hydraulic valve alone, maintaining full torque output at any speed including very low speeds.

Step 6 — Load Holding & Brake Engagement When the operator releases the control, the directional valve closes, motor rotation stops, and the spring-applied brake immediately clamps the drum. The load is held securely at its current position with no drift, and no hydraulic power is required to maintain the hold. In the event of hydraulic pressure loss, the brake engages automatically and the load remains locked.

Step 7 — Overload Protection If the wire rope tension exceeds the winch’s rated pulling capacity — due to a snagged load or unexpected resistance — the pressure relief valve in the hydraulic circuit opens, limiting system pressure and preventing damage to the motor, gearbox, drum, and wire rope. The winch stalls safely without overheating or mechanical failure, a key advantage over electric winches in overload conditions.

Key Features & Benefits

• High Pulling Capacity — Hydraulic drive delivers high torque in a compact, lightweight package. Hydraulic winches achieve pulling capacities from 1 t to 100 t with significantly lower unit weight than equivalent electric winch designs.
• Stepless Speed Control — Full variable speed from near-zero to maximum line speed through hydraulic flow control, with no additional variable frequency drive required. Precise speed control at very low line speeds enables accurate load positioning and controlled lowering.
• Full Torque at Zero Speed — Hydraulic motors deliver rated torque from standstill, allowing the winch to start under full load without current surge or thermal stress on the drive system.
• Continuous Duty Operation — Hydraulic systems dissipate heat efficiently through the oil circuit and tank. Hydraulic winches can sustain continuous operation at rated load without the duty cycle limitations that apply to electric motors.
• Fail-Safe Spring-Applied Brake — The drum is locked automatically on pressure loss, valve closure, or system shutdown. No electrical power or separate brake actuator is required to hold the load.
• Inherent Overload Protection — System pressure is limited by the hydraulic relief valve. Overload conditions cause the winch to stall safely rather than driving the rope or structure to failure, protecting both the winch and the load.

Technical Specifications

Standard Hydraulic Winch Specifications

Hydraulic Winch vs Electric Winch

Choosing between a hydraulic winch and an electric winch depends on the application’s load, duty cycle, environment, and available power infrastructure. The table below covers the primary decision factors.

For applications in standard indoor industrial environments with reliable electrical supply and moderate duty cycles, an electric winch is often the simpler and more economical choice. For heavy loads, continuous duty, marine and offshore service, hazardous areas, or where electrical power is unavailable, a hydraulic winch is the correct solution.

Applicable Industries

• Marine & Offshore — Mooring, anchor handling, towing, and deck lifting on ships, offshore platforms, and port terminals. Marine hydraulic winches operate continuously in salt air, moisture, and variable temperature conditions.
• Oil & Gas — Wellhead equipment handling, pipeline laying, and platform maintenance in Zone 1 and Zone 2 classified hazardous areas. Hydraulic winches require no electrical components at the winch head, making them the preferred lifting and pulling solution in flammable gas atmospheres.
• Mining — Inclined shaft haulage, man-riding hoists, and underground material transport. Mining hydraulic winches provide the continuous duty, reliable braking, and controlled low-speed operation required for safe underground operation.
• Construction — Site lifting and pulling operations where no fixed electrical supply is available. Construction hydraulic winches integrate with excavator or crane hydraulic systems for immediate deployment on any job site.
• Port & Terminal — Ship mooring and positioning, container handling equipment, lock gate and dock gate operation. Port hydraulic winches are specified for high cycle rates and exposure to water and marine atmosphere.
• Forestry & Logging — Timber extraction and cable logging on slopes and in terrain inaccessible to wheeled vehicles. Hydraulic winches integrate with forestry machinery hydraulic systems for self-contained operation.
• Military & Defense — Vehicle recovery, field engineering, and tactical logistics equipment. Military hydraulic winches are designed for extreme temperature ranges, rough handling, and operation without fixed infrastructure.

How to Choose a Hydraulic Winch

1. Rated Pulling Capacity The rated pulling capacity of a hydraulic winch is specified at the first layer of rope on the drum. As rope builds up on the drum in multiple layers, the effective drum radius increases and the pulling force decreases. If your application requires the full rated capacity at the end of a long rope run, confirm the multi-layer performance with our engineering team and select a model with sufficient first-layer capacity.

2. Wire Rope Diameter and Drum Capacity Rope diameter must be matched to the rated pulling capacity and the minimum breaking load of the rope selected. Drum capacity (in meters) must be sufficient to cover the full rope travel required by the application, including any dead wraps retained on the drum at maximum pay-out.

3. Line Speed Requirement Line speed affects both operational productivity and the hydraulic flow rate required from the HPU. Higher line speeds require greater hydraulic flow. Confirm that the HPU or host hydraulic system can supply the required flow at the working pressure of the selected winch model.

4. Working Pressure and HPU Compatibility Hydraulic winch models are designed to operate within a specific working pressure range (140–315 bar). The HPU must supply pressure within this range at the required flow rate. If integrating the winch into an existing machine hydraulic system, confirm that system pressure and available flow are compatible with the winch specification before ordering.

5. Mounting Configuration Hydraulic winches are available in base-plate (horizontal), flange-mount, and vertical drum configurations. Confirm the available mounting space, deck loading capacity, and required rope lead direction before specifying the mounting arrangement.

6. Certification Requirements Marine applications require classification society certification (ABS, CCS, DNV, BV, or LR depending on vessel flag state). Offshore and hazardous area applications may require ATEX or IECEx explosion-proof certification for the HPU and control system. Mining applications require Mine Safety Certification. Specify the required certifications at the time of inquiry to ensure the correct documentation is provided with delivery.

Certifications & Standards

Classification society and explosion-proof certification is available on request for applicable models. Certification documentation is provided with delivery and supports vessel class surveys, facility compliance audits, and regulatory inspections.

About Weihua Hydraulic Winches

Weihua is a professional hydraulic winch manufacturer and supplier based in China, with over 37 years of experience in lifting and traction equipment design and manufacturing. All Weihua hydraulic winches are produced under a rigorous quality management system certified to ISO 9001, and every unit is CE-marked in compliance with the European Machinery Directive.

Weihua provides a global after-sales service network, a one-year product warranty, and long-term spare parts availability for all hydraulic winch models. Our engineering team supports custom winch specifications, hydraulic system integration, and on-site installation and commissioning for marine, offshore, mining, and construction projects worldwide.

We also offer a comprehensive range of lifting and material handling equipment, including electric winches, overhead cranes, gantry cranes, and wire rope hoists. Contact our engineering team today for a customized hydraulic winch solution — or browse our full range of hydraulic winches for sale and request a quotation directly.

A crane trolley is the load-bearing carriage that travels horizontally along the crane girder, carrying the hoist and load from one position to another across the full span of the crane bridge. It is one of the three primary motion axes in any overhead crane system: the crane bridge travels longitudinally along the runway rails, the crane trolley travels laterally across the bridge girder, and the hoist travels vertically to lift and lower the load.

Without a crane trolley, a hoist can only lift at a single fixed point. The trolley is what gives an overhead crane, bridge crane, or gantry crane its full two-dimensional working coverage across the entire bay or yard.

The term trolley crane is sometimes used informally to describe a complete crane system where the trolley is the primary defining feature — most commonly in monorail and underhung crane configurations. In standard overhead and gantry crane terminology, however, the crane trolley is a sub-assembly of the crane, not the crane itself.

Types

Parts

Working Principle

Weihua supplies crane trolleys matched to each major crane configuration. Selecting the correct trolley type depends on the crane structure, beam profile, load capacity, and working environment.

Overhead Crane Trolley / Bridge Crane Trolley

An overhead crane  trolley — also referred to as a bridge crane trolley — is the horizontal travel carriage of an electric overhead traveling (EOT) crane or bridge crane. The two terms are used interchangeably across different markets and describe the same product.

For single girder cranes (up to 20 t), the overhead crane trolley runs along the bottom flange of the main beam, mounting a chain hoist or low headroom wire rope hoist. For double girder and heavy-duty bridge cranes (up to 80 t), the bridge crane trolley is a top-running carriage on girder-mounted rails, built with reinforced frames and M5–M6 duty class ratings for continuous heavy industrial operation.

Typical applications: Workshops, warehouses, assembly lines, steel mills, foundries, shipyard assembly halls, power station turbine halls.

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Gantry Crane Trolley

A gantry crane trolley operates on the bridge girder of a gantry or semi-gantry crane, following the same horizontal travel principle as an overhead crane trolley but adapted for the structural profile and outdoor operating conditions common to gantry crane installations. Gantry crane trolleys are typically specified with IP55 or higher motor protection, reinforced wheel flanges for outdoor rail running, and anti-wind safety clamps for open-air installations.

Both single girder gantry crane trolleys (for lighter capacities, typically 1 t – 20 t) and double girder gantry crane trolleys (for 5 t – 80 t and above) are available. The trolley design accounts for the longer spans and higher exposure to wind, rain, and temperature variation typical of outdoor gantry crane service.

Typical applications: Container yards, prefabrication yards, outdoor steel storage, shipbuilding berths, rail depot maintenance, construction precast yards.

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Key Components of a Crane Trolley

A well-engineered crane trolley integrates structural, mechanical, and electrical sub-systems that must function reliably as a unit throughout the crane’s working life.

• Trolley Frame — Welded structural steel, provides mounting points for wheels, motor, gearbox, hoist interface, and electrical equipment. Frame geometry determines hook approach distance.
• Travel Wheels — Precision-machined alloy steel, heat treated, double-flanged for rail alignment. All wheels run on sealed, pre-lubricated roller bearings.
• Travel Motor & Gearbox — Drives the trolley along the girder via gear reduction. Power from 0.2 kW (monorail) to 7.5 kW+ (heavy bridge crane trolley). VFD control available.
• Electromagnetic Travel Brake — Spring-applied, electrically released. Stops the trolley instantly on button release and holds position on power interruption.
• Hoist Mounting Interface — Bottom flange interface (single girder underhung) or top-mounted rail system (double girder). Compatible with Weihua wire rope hoists and chain hoists.
• End Buffers — Rubber or polyurethane buffers at each trolley end absorb impact energy at travel limits, protecting the frame, girder end stops, and suspended load.
• Travel Limit Switches — Cut motor power before the trolley reaches the buffer, preventing full-power buffer contact. Adjustable to match actual travel length.
• Festoon Cable System / Conductor Bar — Supplies continuous power and control signals throughout the full travel range. Festoon for standard applications; conductor bar for high-cycle or long-travel runs.
• Control Pendant / Radio Remote — Pushbutton pendant for Up/Down, East/West, and Emergency Stop. Explosion-proof or standard versions available. Radio remote control optional.

Working Principle of a Crane Trolley

The crane trolley converts motor rotation into smooth, controlled horizontal travel along the crane girder, working in combination with the hoist to position loads at any point within the crane’s working envelope.

Step 1 — Operator Command The operator presses the East or West travel button on the pendant control or radio remote. The control circuit energizes the travel motor contactor inside the trolley control panel.

Step 2 — Brake Release & Motor Start The electromagnetic travel brake releases simultaneously with motor energization. For VFD-controlled trolleys, the drive ramps motor speed up from zero at a controlled acceleration rate, eliminating the jerk and load swing associated with direct-on-line starting. For standard contactors, the motor starts at full speed directly.

Step 3 — Torque Transmission The motor drives the gearbox input shaft. The gearbox reduces rotational speed and increases torque at the output shaft, which connects via a drive shaft or coupling to the driven travel wheels. The non-driven wheels (typically two of the four wheels) roll freely on bearings.

Step 4 — Trolley Travel Along the Girder The driven wheels roll along the rail surface (double girder trolleys) or the bottom flange of the I-beam (single girder trolleys), moving the entire trolley — and any suspended hoist and load — laterally across the crane span at the selected travel speed.

Step 5 — Stopping & Brake Engagement When the operator releases the travel button, the motor contactor opens. For VFD-controlled systems, the drive decelerates the motor to zero speed before opening the brake. For standard systems, the electromagnetic brake clamps the motor shaft immediately on power removal, stopping the trolley within the design stopping distance. The load comes to rest at the new horizontal position with no drift.

Step 6 — Limit Switch Protection If the trolley approaches either end of its permitted travel without operator input, the travel limit switch interrupts the motor circuit in the relevant direction before the trolley reaches the buffer. The operator can still travel in the opposite (away) direction. This prevents buffer impact under full motor power and protects both the trolley and crane structure from repeated mechanical shock.

Combined Operation with the Hoist In normal crane operation, trolley travel and hoist lifting or lowering are frequently performed simultaneously — moving the load diagonally from pick-up point to set-down point in a single operator motion. The trolley and hoist operate on independent control circuits, allowing combined movement without interference. The crane bridge may also travel simultaneously, giving the operator full three-axis control of load position.

Key Features & Benefits

• Precision-Machined Trolley Frame — CNC-machined rail contact surfaces ensure correct wheel load distribution, reducing rail wear and extending wheel and bearing service life.
• VFD Control (Optional) — Stepless speed control from near-zero to full travel speed. Eliminates load swing at start-up and allows accurate load positioning at set-down.
• Heat-Treated Alloy Steel Wheels — 65Mn alloy steel, induction hardened to 50–58 HRC on the tread surface. Outlast standard steel wheels by a factor of 3–5 in continuous operation.
• Wide Beam Compatibility — Adjustable wheel span fits I-beam and box girder flange widths from 50 mm to 300 mm, covering all standard overhead and gantry crane beam sections.
• Low Headroom Design Options — Compact trolley and hoist assembly minimizes dead height, maximizing available hook height within the existing building envelope.
• Corrosion-Resistant Coating — Two-coat epoxy primer plus polyurethane topcoat as standard. Hot-dip galvanizing and stainless steel hardware available for outdoor or chemically aggressive environments.
• Hoist Brand Compatibility — Standardized interface dimensions compatible with Weihua wire rope hoists, chain hoists, open winch assemblies, and most internationally standard hoist mounting configurations.

Technical Specifications

Overhead Crane Trolley

Gantry Crane Trolley

Standard configurations cover the capacities and beam sizes listed above. Custom trolley designs — including extended travel wheels for non-standard rail gauges, stainless steel construction, high-temperature service above +40°C, and heavy-duty M7/M8 working grades — are available on request. Contact our engineering team with your crane layout drawing and operational requirements.

Applicable Industries

• General Manufacturing & Assembly — Overhead crane trolleys move workpieces between machining centers, assembly stations, and dispatch. VFD control improves production flow and reduces idle time.
• Steel & Metallurgy — Bridge crane trolleys for steel mills and forge shops are specified to M6–M7 duty class with reinforced frames and high-temperature bearings for continuous heavy-duty service.
• Shipbuilding & Offshore — Heavy bridge crane trolleys handle hull sections and large components in assembly halls; gantry crane trolleys for outdoor berths are specified with anti-wind devices and IP65 protection.
• Warehouse & Logistics — Overhead crane trolleys with VFD control reduce load swing and improve positioning accuracy for pallet, coil, and bulk container handling in high-bay warehouses.
• Construction & Precast — Gantry crane trolleys position heavy beams, slabs, and column elements in precast yards, specified for outdoor operation and variable load conditions.
• Automotive Manufacturing — Electric overhead crane trolleys with VFD control and radio remote handle dies, body assemblies, and engine components with high positioning precision.
• Power Generation — Heavy-duty bridge crane trolleys in turbine and transformer halls support overhaul and installation of high-value equipment where accurate load placement is critical.

How to Choose a Crane Trolley

Selecting the correct crane trolley requires matching the trolley specification to the crane structure, the load, and the working conditions. The following five factors cover the primary selection criteria.

1. Rated Lifting Capacity Select a trolley rated at or above the maximum load the hoist will lift, including any rigging, below-the-hook attachments, and appropriate safety factor. Do not undersize the trolley based on average loads — the rated capacity must cover the maximum load the system will ever be asked to handle.

2. Compatible Crane Type Identify whether the application requires an overhead crane trolley, bridge crane trolley, gantry crane trolley, or monorail trolley. This determines the basic frame geometry, wheel arrangement, and structural specification of the trolley required.

3. Beam Profile & Flange Width Measure the flange width of the girder rail or I-beam on which the trolley will run. The trolley wheel span and flange engagement must match the beam profile to ensure correct load distribution and safe travel without risk of derailment. Provide the beam section reference (e.g., HEB 300, H400×200, or I-beam No. 32) when requesting a quotation.

4. Travel Drive Type & Speed For most production applications, an electric motor travel drive provides the speed, control, and duty cycle performance required. For low-frequency, short-distance transfer tasks, a manual push or geared hand chain trolley is the economical choice. Travel speed selection should account for production cycle time requirements and the need for load positioning accuracy.

5. Working Grade & Duty Class Working grade (M3 to M6 for most standard crane trolleys) defines how intensively the trolley is designed to operate — combining the frequency of use and the average proportion of rated load carried per lift. Match the trolley working grade to the actual operational intensity of the application to ensure adequate service life without over-specifying and over-investing in equipment that exceeds the application’s real requirements.

Crane Trolley vs Hoist — What Is the Difference?

Users new to crane systems sometimes use the terms crane trolley and hoist interchangeably. They are distinct components with different functions, and both are required in most overhead crane configurations.

Factor	Crane Trolley	Hoist
Primary function	Horizontal load travel	Vertical load lifting
Direction of motion	Lateral (along crane girder)	Vertical (up and down)
Location in crane system	Travels on crane bridge girder	Mounted to or integrated with trolley
Key components	Frame, travel wheels, travel motor, brake	Drum/chain, lift motor, brake, hook
Independent use	Rarely — typically paired with a hoist	Can be fixed-mounted without a trolley
Controls	East / West travel buttons	Up / Down lift buttons

In a complete overhead crane or gantry crane system, the crane trolley provides horizontal positioning across the crane span, while the hoist provides vertical lifting. Together they give the crane its full working coverage within the bay.

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Certifications & Standards

All Weihua crane trolleys are designed and manufactured in accordance with the following standards:

Standard / Certification	Coverage
CE Marking	European conformity — Machinery Directive 2006/42/EC
ISO 9001	Quality management system certification
FEM 1.001	European federation of materials handling — crane design rules
GB/T 3811	Chinese national standard — crane design code
GB/T 14405	Chinese national standard — overhead crane general specification

Certification documents are provided with each trolley delivery and are available for customer review during equipment acceptance and facility compliance audits.

About Weihua Crane Trolleys

Weihua is a professional crane trolley manufacturer and supplier based in China, with over 37 years of experience in lifting equipment design and manufacturing. All Weihua crane trolleys are produced under a rigorous quality management system certified to ISO 9001, and every unit is CE-marked in compliance with the European Machinery Directive.

Weihua provides a global after-sales service network, a one-year product warranty, and long-term spare parts availability for all crane trolley models. Our engineering team supports custom trolley specifications, complete crane system integration, and on-site installation guidance for overhead crane trolley, bridge crane trolley, and gantry crane trolley projects worldwide.

We also offer a comprehensive range of lifting equipment, including electric wire rope hoists, electric chain hoists, overhead traveling cranes, and gantry cranes. Contact our engineering team today for a customized crane trolley solution tailored to your crane system and application requirements.