Straddle Carrier Spreader

Présentation du produit

A Straddle Carrier Spreader is a container-lifting attachment installed on a straddle carrier for handling ISO shipping containers. It engages with container corner castings through twistlocks, forming a secure connection for lifting, transporting, stacking, and positioning containers during terminal and yard operations.

The spreader is a key component of a straddle carrier. Its performance directly affects handling efficiency, positioning accuracy, and operational safety. Modern designs include twistlock systems, container positioning functions, and adjustment mechanisms for different container sizes. It is widely used in ports, container terminals, intermodal yards, and logistics hubs with frequent container handling and stacking.

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Pièces

Spécifications

Straddle carrier spreaders are designed in different configurations to match container size, handling mode, and terminal operation requirements. Each type is built for specific working conditions, including mixed container flow, fixed-size handling, and high-frequency yard operations.

Fixed RTG Spreader

Telescopic spreader is the most common type used on straddle carriers. The frame length changes through a hydraulic system to fit 20ft and 40ft containers. It is used in terminals handling mixed container sizes.

• Container size: 20ft / 40ft / 45ft
• Adjustment range: approx. 6,058 mm – 12,192 mm
• Lifting capacity: up to 45–50 tons
• Extension speed: ~10–20 seconds per cycle

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Fixed Spreader

Fixed spreader is built for one container size, usually 40ft. The frame length is not adjustable. It has a simple structure and is used where container sizes are consistent and operations are stable.

• Container size: 40ft (standard)
• Frame length: 12,192 mm fixed
• Lifting capacity: up to 40–45 tons
• Structure weight: approx. 8–12 tons

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Twin-Lift Spreader

Twin-lift spreader is designed to lift and transport two 20ft containers at the same time. It is used in high-volume container yards where 20ft containers are handled frequently.

• Container configuration: 2 × 20ft
• Total lifting capacity: up to 60–65 tons
• Load per container: up to 30–32.5 tons each
• Center spacing accuracy: ±10–15 mm

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Multi-Function Spreader

Multi-function spreader is equipped with side shift, rotation, and tilt functions. It supports container alignment, positioning correction, and operation in complex yard conditions.

• Side shift range: ±200–500 mm
• Rotation angle: ±3° to ±5°
• Tilt angle: ±3° to ±5°
• Lifting capacity: up to 45–50 tons

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Electro-Hydraulic Spreader

Electro-hydraulic spreader is controlled through PLC and hydraulic systems. It manages locking, positioning, and feedback functions and is used in modern straddle carrier configurations with higher control requirements.

• Control system: PLC + electro-hydraulic drive
• Positioning accuracy: ±10–20 mm
• Lifting capacity: up to 45–50 tons
• Operating voltage: 380V / 50Hz (customizable 440V / 60Hz)

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Pièces

The straddle carrier spreader is made up of several mechanical and hydraulic systems that work together to handle container lifting, positioning, and locking operations in yard environments.

• Spreader frame: Main steel structure. Supports all working parts and connects to the straddle carrier.
• Telescopic mechanism: Hydraulic system for frame length adjustment. Fits 20ft and 40ft containers.
• Twistlock system: Four or eight twistlocks (twin-lift type). Locks into container corner castings for lifting.
• Hoisting system: Wire ropes or hydraulic cylinders connect to the carrier. Handles lifting and lowering of the spreader and container.
• Positioning system: Controls spreader movement within the frame. Limits forward motion and allows side adjustment for container alignment.
• Hydraulic and control system: Drives the spreader functions. Manages locking, movement, and signal feedback through the carrier control system.

Each component plays a specific role in supporting stable container handling. Different configurations are available to match straddle carrier design and terminal operation requirements.

Spécifications

Core Parameter / Feature	Technical Specification & Data
Applicable Sizes	Standard 20 ft, 40 ft (Telescopic up to 45 ft, 48 ft & HC)
Locking Mechanism	Automatic twistlocks (locks into top corner castings)
Rated Capacity	30 to 50 tons (Mainstream: 35t / 40t / 45t)
Self-Weight	8 to 15 tons (Depending on material & design)
Telescopic Range	Approx. 6.0 m to 12.5 m (Hydraulic extension)
Side-Shift Range	±200 mm to ±500 mm (Lateral deviation compensation)
Rotation Angle	±3° to ±5° (Advanced models support 90° rotation)
Tilting Angle	±3° to ±5° (Fore-and-aft tilt for uneven ground)
Frame Structure	High-strength welded steel (Telescopic main & crossbeams)
Connection Type	Wire ropes / hydraulic cylinders with guide wheels
Système d'entraînement	Full hydraulic drive (Extension, twistlocks, side-shift)
Système de contrôle	Integrated PLC control with auto-size recognition
Safety Config	Twistlock sensors, overload protection, tilt limits, E-stop
Host Matching	Matches lifting height, wheel loads & stacking tiers (1-over-4)
Automation Trend	Smart sensors for precise positioning & unmanned handling
Optional Types	Twin-lift spreaders (Handles 2 x 20 ft containers simultaneously)

All specifications can be customized according to container size, lifting capacity, straddle carrier configuration, and project requirements.

Functions of the Straddle Carrier Spreader

The straddle carrier spreader handles container pickup, transfer, and stacking in port and yard operations. It is the main lifting component of the straddle carrier system.

• Container pickup at the quay and yard interface: Used for lifting containers from quay cranes and transferring them to yard areas for direct handling.
• Twistlock engagement with corner castings: Locks into container corner castings through mechanical or hydraulic twistlocks for lifting operations.
• Horizontal container movement: Moves containers between quay, yard blocks, and working zones without additional handling equipment.
• Truck loading and unloading: Places containers onto internal trucks or receives containers from trucks for yard circulation.
• Side shift and alignment adjustment: Adjusts the position left and right to match the container corner castings before lifting or placement.
• Container stacking in yard blocks: Handles stacking operations in multi-layer storage areas, typically up to 3–4 levels depending on configuration.
• Support for multiple container sizes: Handles standard 20ft and 40ft containers with an adjustable spreader structure.
• Container rehandling in the storage yard: Repositions containers during yard rearrangement, including restacking and block adjustment.
• Operation in a narrow lane layout: Works within compact yard lanes, suitable for high-density container storage areas.
• Basic control and sensing integration: Works with positioning sensors and control systems for accurate locking and placement during operation.

It supports continuous container flow between quay, yard, and trucks, and plays a key role in maintaining handling efficiency, yard organization, and operational stability.

Matching Container Crane Types

Intermodal RTG crane

Grues RTG électriques

Grue à conteneurs RTG

Portiques sur pneus RTG

Avantages

The straddle carrier spreader supports container handling in transport, stacking, and yard operations. Its design focuses on stable lifting, accurate alignment, and steady performance under continuous working conditions.

Straddle carrier spreader affects container handling speed, safety, and yard space use. Selection is based on terminal layout and working conditions. Standard and customized designs are available for different applications.

How to Select the Right Straddle Carrier Spreader

Straddle carrier spreader selection depends on container size, handling demand, carrier configuration, and yard operating conditions. Each factor affects lifting performance, compatibility, and long-term operation stability.

1. Container size requirement

Define container types in operation, including 20ft, 40ft, and non-standard sizes such as 45ft or high cube containers. Spreader range should match these sizes.

2. Working mode requirement

Single-container handling or twin-lift operation depends on terminal throughput and handling flow.

3. Stacking height requirement

Typical yard stacking is 3–5 tiers. This relates to lifting height and locking system strength.

4. Rated lifting capacity

Based on maximum container weight plus spreader weight. Keep a suitable safety margin within the 30–50 ton range.

5. Positioning and adjustment functions

Side shift, rotation, and tilt functions support container alignment in narrow yard conditions.

6. Compatibility with the straddle carrier

Mechanical interface, lifting system, and hydraulic connection match the carrier structure and power system.

7. Control system integration

The spreader connects with the carrier PLC system for locking, movement control, and signal feedback.

8. Safety protection features

Overload protection, lock status detection, emergency stop, and tilt limit functions.

9. Structural strength and durability

Frame design supports repeated lifting cycles with resistance to bending and torsion in heavy-duty use.

10. Supplier capability and service support

Manufacturing standard, customization ability, spare parts supply, and after-sales response level.

Final selection is based on working conditions and equipment requirements. Standard models and customized solutions are available for different port and terminal applications.

Caractéristiques de sécurité

• 1. Secure container locking
  Twistlocks engage container corner castings to hold the container during lifting and transport.
• 2. Load monitoring and overload protection
  Load condition is monitored during operation, with limits set for overload situations.
• 3. Anti-tilt and stability control
  Hydraulic and control systems reduce tilt and keep the lifting stable during container movement.
• 4. Operator safety system
  Warning signals, alarms, and control logic support safe operation during daily handling.
• 5. Emergency release function
  Provides controlled stop or release in abnormal situations to protect equipment and cargo.

Applications

A straddle carrier spreader is used in port and yard operations for container handling, transfer, and stacking. It works with straddle carriers in different terminal layouts and operating conditions.

Container yard stacking and handling

Used for stacking and moving containers in yard storage areas.

Quay-to-yard transfer

Transfers containers between quay cranes and yard areas.

Terminal and intermodal transport

Moves containers between yard blocks, rail terminals, and logistics yards.

Special environment operation

Applied in customized port and terminal working conditions.

Automated terminal operation

Used in automated and semi-automated terminals for container positioning and handling.

Twin container lifting operation

Handles two 20ft containers in one cycle for higher throughput.

Mixed container size handling

Works with 20ft, 40ft, 45ft, and 48ft containers.

Safety-controlled handling

Used in operations requiring controlled lifting and positioning.

It supports container movement across quay, yard, and transport systems, covering standard and special handling requirements in container terminals.

Customization Options

Straddle carrier spreaders are available with multiple customization options to match different container types, working environments, and terminal operation requirements. Configurations can be adjusted based on lifting capacity, container flow, and site conditions.

Single or twin lifting

Single-lift for one 20ft, 40ft, or 45ft container per cycle.
Twin-lift for two 20ft containers in one cycle, used in high-throughput terminals.

Telescopic structure

The hydraulic telescopic frame adjusts between 20ft and 40ft containers, suitable for mixed container operations.

Heavy-duty and special cargo design

Reinforced structure for heavy containers. Special twistlock and frames for reefers, tank containers, and flat racks.

Corrosion protection

Epoxy primer + polyurethane top coat, hot-dip galvanizing, or weathering steel for marine and chemical environments.

Low-temperature configuration

Low-temperature hydraulic oil, cold-resistant steel, and heating systems for twistlocks and sensors in freezing conditions.

Custom configurations are available for different port and yard applications, covering standard and special operating conditions. Equipment can be configured according to project requirements.

Straddle Carrier Spreader Manufacturer and Supplier

WEIHUA Straddle Carrier Spreader is designed for container handling, transfer, and stacking in port and terminal operations. The product covers different configurations, including telescopic, fixed, twin-lift, and multi-function types, with options for standard and special working conditions.

WEIHUA has long experience in port handling equipment, with capability in engineering design, customized production, and global project support. Contactez-nous for technical details, configuration options, and project-based solutions.

FAQ

What is a straddle carrier spreader?

It is a lifting attachment used on straddle carriers for handling ISO containers in ports and yards.

What container sizes can it handle?

It handles 20ft, 40ft, 45ft, and some 48ft containers, depending on configuration.

What is a telescopic spreader?

A telescopic spreader adjusts length to match different container sizes, mainly 20ft and 40ft.

What is a twin-lift spreader used for?

It lifts two 20ft containers in one cycle to increase handling efficiency.

How does the spreader lock containers?

It uses twistlocks that engage container corner castings for lifting and transport.

Can the spreader be customized?

Yes. It can be customized for lifting capacity, environment, and container type.

Quels systèmes de sécurité sont inclus ?

Typical systems include load monitoring, overload protection, and tilt control.

Where is it used?

It is used in container terminals, ports, intermodal yards, and logistics hubs.

Service après-vente

Fondée en 1988, Weihua est devenue un leader mondial dans le domaine de la fabrication intelligente en Chine. Nous sommes spécialisés dans la R&D et la production de grues intelligentes tout en proposant des solutions d'AGV. Nos équipes professionnelles d'ingénierie, de livraison et d'après-vente offrent un support technique complet, des solutions personnalisées, des conseils d'installation sur site et des services mondiaux à réponse rapide pour garantir que chaque projet fonctionne en toute sécurité et efficacité.

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