Explosion Proof Overhead Crane

Explosion-proof overhead cranes are used in flammable, explosive, and high-risk industrial environments, such as hazardous areas in oil and gas, chemical plants, refineries, pharmaceutical workshops, battery and new energy production lines, etc. Explosion-proof bridge cranes comply with multiple international explosion-proof standards and meet the requirements for hazardous area classifications such as Zone 1/Zone 2 (ATEX, IECEx) and Class I/II, Division 1/2 (NEC). All critical components, including the hoisting mechanism, motor, electrical system, control cabinet, and braking device, are explosion-proof or intrinsically safe in design to prevent potential safety hazards caused by electrical sparks, high temperatures, or static electricity. Explosion-proof bridge cranes can be customized according to actual working conditions. You can configure the lifting capacity, span, lifting height, working class, and control method based on site conditions.
Important Parameters
  • Lifting Capacity: 1–100 t
  • Span: 7.5–35 m
  • Lifting Height: 6–30 m
  • Duty Class: A5–A7

Product Introduction

Explosion proof overhead cranes can prevent safety risks caused by electrical sparks, overheating, and static electricity during operation. Explosion-proof optimizations to the structure and electrical system enable the equipment to operate stably under complex working conditions.

Types
Parts
Working Principle

Types of Explosion Proof Overhead Crane

We offer a wide range of explosion-proof overhead cranes, from small and medium-sized loads to heavy-duty applications, and from confined spaces to continuous operation. Each model is rigorously designed to be explosion-proof. Below is an introduction to four common types.

 

Explosion Proof Single Girder Overhead Crane

Explosion Proof Single Girder Overhead Crane

Explosion-proof single-girder overhead cranes are used for material handling in small to medium-load, explosion-proof workshops. They feature a compact structure, occupy minimal space, operate smoothly, and are easy to install and maintain, making them suitable for medium to low-frequency operating environments.

  • Lifting Capacity: 1–20 tons (customizable)
  • Span: 7.5–25 meters (customized according to workshop layout)
  • Lifting Height: 6–18 meters (designed according to factory building height)
  • Working Class: A5–A6
  • Explosion-proof Rating: Zone 1 / Zone 2, ATEX & IECEx, NEC Class I & II Div.1/2
    Control Method: Pendant control, wireless remote control

 

Explosion Proof Double Girder Overhead Crane

Explosion Proof Double Girder Overhead Crane

Explosion-proof double girder overhead cranes are used for continuous lifting operations in heavy-duty, high-frequency, and explosion-proof environments. They feature a robust structure, smooth and reliable operation, and are capable of long-term continuous operation and high-intensity work.

  • Lifting Capacity: 5–100 tons (customizable)
  • Span: 10–35 meters (customized according to factory and track design)
  • Lifting Height: 8–30 meters (designed according to workshop requirements)
  • Working Class: A6–A7
  • Explosion-proof Rating: Zone 1 / Zone 2, ATEX & IECEx, NEC Class I & II Div.1/2
  • Control Method: Pendant control, wireless remote control, or operator cabin control
Explosion Proof Underslung Overhead Crane

Explosion Proof Underslung Overhead Crane

Explosion-Proof Underslung Overhead Crane: This crane operates suspended from the factory structure and is used in explosion-proof workshops where headroom is limited or there are no independent track beams. It can perform precise lifting operations in confined spaces.

  • Lifting Capacity: 1–10 tons (customizable)
  • Span: 7.5–20 meters (designed according to workshop space)
  • Lifting Height: 5–15 meters (customized according to lifting conditions)
  • Working Class: A4–A5
  • Explosion-Proof Rating: Zone 1 / Zone 2, ATEX & IECEx, NEC Class I & II Div.1/2
  • Control Method: Pendant control or wireless remote control
Explosion Proof Hoist Overhead Crane

Explosion Proof Hoist Overhead Crane

The lifting mechanism of the Explosion-Proof Hoist Overhead Crane is an explosion-proof electric hoist, featuring a simple structure and easy maintenance. It is suitable for daily material handling operations with light to medium loads and meets the high safety standards of explosion-proof workshops.

  • Lifting Capacity: 1–16 tons (customizable)
  • Span: 7.5–28 meters (customized according to workshop layout)
  • Lifting Height: 6–20 meters (customizable according to operational needs)
  • Working Class: A5–A6
  • Explosion-Proof Rating: Zone 1 / Zone 2, ATEX & IECEx, NEC Class I & II Div.1/2
  • Control Method: Pendant control, wireless remote control

Explosion Proof Overhead Crane Parts

The precise design of the key components of the explosion-proof bridge crane ensures safe and reliable performance. The bridge structure supports the entire weight of the crane, the trolley enables lateral movement, the lifting mechanism performs hoisting operations, and the control system and braking device ensure safe operation. Below, we will introduce the main components of the crane and their functions in detail.

Explosion Proof Overhead Crane Parts

Bridge: The bridge is the main load-bearing structure of the crane, supporting the entire machine’s operation. Explosion-proof bridges are generally welded from high-strength steel, with a robust structure capable of withstanding heavy loads and prolonged operation.
Trolley: The trolley moves along the bridge, carrying the hoisting mechanism, enabling lateral movement of materials across the span. The internal motor and control system of the explosion-proof trolley are designed with explosion-proof or flameproof features.
Hoisting Mechanism: The hoisting mechanism is the core component of the lifting system, responsible for raising and lowering heavy objects. The explosion-proof hoisting mechanism includes an explosion-proof motor, explosion-proof brakes, and wire rope or chain.
Control System: The control system can be operated via a pendant control, wireless remote control, or control cabin. All control components meet explosion-proof standards to prevent sparks or arcs from causing accidents.
Traveling Mechanism (End Carriage/Drive System): The traveling mechanism drives the bridge along the factory track, including an explosion-proof motor, gears, and wheel sets.
Braking Device: Explosion-proof brakes provide fast and reliable braking, ensuring safe lifting operations and are suitable for high temperatures, heavy loads, and frequent operation.
Optional Accessories: Optional accessories include anti-sway devices, weighing systems, positioning control, and remote monitoring for more intelligent and efficient lifting operations.

It is very important for explosion-proof cranes to be equipped with safety devices. To learn more about safety devices, read the article: Overhead Crane Safety Devices: Types, Functions, and Working Principles

 

 

Working Principle

The explosion-proof bridge crane moves horizontally along the factory tracks via its bridge structure, positioning the lifting mechanism and hook over the material to be lifted. The lifting mechanism uses an explosion-proof motor to drive a wire rope or chain, lifting heavy objects vertically, while an explosion-proof brake ensures safe and reliable lifting operations. The trolley moves back and forth on the bridge structure, allowing for lateral transport of materials across the span. The entire operation is controlled by an explosion-proof control system (pendent control, wireless remote control, or control cabin), ensuring that no sparks or arcs are generated in flammable or explosive environments, while also allowing for high-frequency, heavy-duty, and continuous operation.
The key to an explosion-proof crane lies in all electrical components, drive devices, and control systems complying with explosion-proof standards, ensuring stable and safe lifting operations even in hazardous environments.

Specifications

The following are the main technical parameters of the explosion-proof bridge crane, which will help you determine if the equipment is suitable for your current working conditions. Specific configurations can be customized according to the explosion-proof rating and site conditions.

Specifications of Explosion Proof Overhead Crane

ParameterSpecification
Lifting Capacity1–100 t
Span7.5–35 m
Lifting Height6–30 m
Duty ClassA5–A7
Explosion Proof GradeATEX Zone 1 / Zone 2, IECEx, NEC Class I & II Div. 1 / 2
Hoisting Speed0.8–8 m/min
Traveling Speed20–60 m/min
Control MethodPendant / Wireless Remote / Cabin
Power Supply380–415 V, 50 Hz (customizable)
Working EnvironmentGas or dust hazardous areas

Features

Explosion-proof lifting mechanism and motor
Key power components feature an explosion-proof design, ensuring stable operation and preventing sparks and overheating risks.
Spark-proof electrical system
The electrical configuration is optimized for hazardous environments, reducing the risk of arcing and transient discharges.
Explosion-proof control devices
The control cabinet and operating components utilize explosion-proof structures, enhancing overall operational safety.
Grounding and electrostatic protection
Comprehensive grounding and electrostatic discharge measures, combined with temperature and overload protection, ensure safe equipment operation

Application

Explosion-proof cranes are specifically designed for flammable and explosive environments. Equipped with explosion-proof electrical systems and special protective devices, they can operate safely in hazardous areas containing flammable gases, dust, or vapors. They are used in industries with high safety requirements, such as petrochemicals, natural gas, pharmaceuticals, and military industries:

  • Petrochemical workshops: Used for lifting storage tanks, reactors, pipelines, and other equipment, maintaining equipment and transferring materials in environments with flammable and explosive media.
  • Natural gas processing plants: Responsible for lifting heavy equipment such as compressor units and separators, ensuring safe operation in areas containing flammable gases.
  • Pharmaceutical production areas: Used for handling and transporting raw materials, intermediates, and finished products in production environments containing flammable solvents and dust.
  • Painting and spraying workshops: Used in painting areas of the automotive, shipbuilding, and machinery industries, preventing electrical sparks from igniting paint vapors during workpiece lifting.
  • Dust explosion risk areas: Used in places such as flour processing, feed production, and coal powder handling, preventing dust clouds from exploding upon contact with sparks.
  • Military ammunition depots: Used for the handling and storage of ammunition and explosives.

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Custom Options For Explosion Proof Overhead Crane

Explosion-proof cranes require specialized design and configuration based on the hazardous area classification, type of explosive medium, and operating conditions. Appropriate explosion-proof parameters and safety configurations effectively reduce the risk of explosion, ensuring safe and reliable operation in flammable and explosive environments. Common customization options include:

  • Explosion-proof rating: Selecting the appropriate explosion-proof rating based on the gas group (e.g., IIA, IIB, IIC) and temperature group (T1-T6) of the operating area.
  • Lifting capacity and span: Determined by the maximum weight of the equipment, containers, or materials to be lifted, and the workshop layout, covering the entire operating area.
  • Explosion-proof electrical system: Configuring explosion-proof motors, switches, lighting, and other electrical components that comply with ATEX or IECEx standards to eliminate electrical spark ignition sources.
  • Operating control method: Options include explosion-proof remote control, explosion-proof push buttons, or explosion-proof control cabin operation, configured according to on-site visibility and operating distance.
  • Operating speed adjustment: Setting appropriate lifting, trolley, and crane travel speeds based on process requirements and safety considerations to avoid friction sparks caused by rapid starts and stops.
  • Materials and surface treatment: Key components use non-sparking materials (such as copper alloys, aluminum bronze), and surfaces are treated with anti-static coatings to reduce the risk of ignition from mechanical friction.
  • Safety monitoring configuration: Integration of intelligent safety systems such as gas concentration detection, overload protection, limit protection, and temperature monitoring for real-time warning of abnormal conditions.
  • Grounding and anti-static measures: Configuring reliable grounding devices and anti-static conductive wheels to promptly release static electricity accumulation, complying with electrical safety regulations for explosion-proof areas.
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Explosion-Proof Overhead Crane Drawings

Explosion Proof Overhead Crane Manufacturer and Supplier

Weihua is a professional manufacturer and supplier of explosion-proof overhead cranes in China, with over 37 years of experience in the design and manufacturing of lifting equipment. For many years, Weihua has continuously provided safe and reliable explosion-proof lifting solutions for flammable and explosive industrial fields such as chemical, oil and gas, refining, and new energy, accumulating rich project experience.

All explosion-proof overhead cranes are designed and manufactured according to international standards, with key components featuring certified explosion-proof designs, meeting the requirements for use in Zone 1 / Zone 2 and Class & Division hazardous areas. The products have passed relevant certifications such as CE and ISO, and are exported to many countries and regions.

Weihua can provide selection advice and customized designs at the initial stage of your project. After equipment delivery, we provide installation guidance, technical support, and a one-year warranty. Please contact us to customize a suitable solution for you.

Weihua Crane Factory

After-Sales Service

Weihua, founded in 1988, has evolved into a global leader in China's intelligent manufacturing field. We specialize in smart crane R&D and production while offering AGV solutions. Our professional engineering, delivery, and after-sales teams provide one-stop technical support, customized solutions, on-site installation guidance, and rapid-response global services to ensure every project operates safely and efficiently.

Global Technical Support Team
Delivering remote guidance, on-site commissioning, and operator training to ensure rapid equipment deployment.
Comprehensive Spare Parts & Supply Chain System
Maintaining long-term inventory of critical components to guarantee swift delivery and sustained maintenance.
One-Stop After-Sales Service
Providing end-to-end professional support from installation and commissioning to upgrades and troubleshooting.
Regular Inspection & Maintenance Programs
Equipping clients with maintenance manuals to extend crane lifespan and reduce failure rates.
Looking for a reliable crane manufacturer? Weihua will be your trusted partner! Feel free to contact us anytime to discuss your project requirements, receive technical advice from our professional engineering team, and obtain a customized quote. Let Weihua leverage its proven manufacturing capabilities and comprehensive service system to deliver efficient, safe crane solutions that enhance operational efficiency and ensure your project's success!

FAQ

Which industries require explosion-proof cranes?

They are typically used in oil and gas, chemical plants, refineries, pharmaceutical plants, battery manufacturing, and other hazardous locations.

What standards should an explosion proof overhead crane comply with?

Explosion proof overhead cranes should comply with internationally recognized standards such as ATEX, IECEx, or NEC. The required certification depends on your project location and hazardous area classification, to meets strict safety and regulatory requirements.

Are all components of the crane explosion proof?

Weihua explosion proof crane, all critical components such as motors, electrical panels, controls, and limit switches must meet explosion protection requirements. Partial protection is not sufficient for hazardous environments and may create safety risks.

What factors affect the price of an explosion proof crane?

Key factors include explosion proof classification, lifting capacity, span, working duty, and component brands. Higher safety standards and customized designs typically increase the cost compared to standard overhead cranes.

What certifications and documents should suppliers provide?

Suppliers should provide explosion proof certificates, test reports, technical drawings, operation manuals, and compliance documentation. These documents are essential for project approval, installation, and long-term operation.

Customize Your Lifting Solutions

Contact us now via email: [email protected], or fill in the form below.

Please specify your requirement by referring to the following aspects:
  • Which crane product do you need?
  • What is the maximum lifting capacity (in tons) required for your project?
  • Could you specify the lifting height (in meters) needed?
  • Can you provide details on the working environment, such as ground conditions, space limitations, and any obstacles?
  • What is the expected frequency of use and the duration of the project?
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related products

Single Girder Overhead Travelling Crane
  • Lifting capacity: 1 ~ 32 ton
  • Span: 7.5 ~ 31.5m
  • Lifting height: 6 ~ 30 m
  • Working Class: A3-A5
Single Beam EOT Crane
  • Lifting capacity: 1–20 tons
  • Span range: 7.5–28.5 meters
  • Lifting height: 6–18 meters
  • Working class: A3–A4
Overhead Slab Crane with Clamp
  • Rated lifting capacity: 10–50t
  • Temperature: 600 – 900℃
  • Span: 10.5–35m
  • Working class: A6 / A7

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