Rubber Tyre Type Double Girder Gantry Crane

Key Features:

Rubber Tyre Mobility

Equipped with pneumatic or solid rubber tires for smooth movement on paved or semi-paved surfaces.

No need for rails, making it ideal for construction sites, ports, and storage yards.

Requires a flat, stable ground surface for safe operation.

Double Girder Design

Two main girders provide superior strength and stability compared to single-girder models.

Higher lifting capacity (typically 5–500 tons or more).

Allows for wider spans and better hook height.

Structure & Components

Main Girders: Steel box-type or truss design for durability.

End Carriages: Support the girders and house wheels/tires.

Hoist & Trolley: Electric or hydraulic hoist moves along the girders for precise load positioning.

Legs: Adjustable or fixed legs for varying heights.

Outriggers (Optional): Enhance stability for heavy lifts.

Power & Control

Electric-driven (diesel generators for remote areas).

Radio remote control or cabin-operated.

Smooth acceleration and braking systems.

 

 

Comparison with Rail-Mounted Gantry Cranes:

Feature	Rubber Tyre Gantry Crane	Rail-Mounted Gantry Crane
Mobility	High (tire-based)	Fixed (runs on rails)
Setup Cost	Lower infrastructure	Requires rail installation
Load Capacity	Up to 500+ tons	Often higher (1000+ tons)
Surface Requirement	Needs flat ground	Needs rail tracks

 

 

Lifting Capacity 320 tons
Span (Width) 3 - 12 meters (adjustable)
Lifting Height 3 - 10 meters
Working Class A3-A5 (light to medium duty)
Hoisting Speed 0.5 - 8 m/min (variable)
Main Beam Type Single/double girder (box-type)
Power Supply 220V/380V 3-phase or manual
Control Mode Pendant control/wireless remote
Hoist Type Electric chain hoist/wire rope hoist
Travel Drive Manual push or motorized
Corrosion Protection Hot-dip galvanized or marine-grade paint
Wind Resistance Up to Beaufort scale 6 (for outdoor use)
Operating Temp -20°C to +50°C

 

A Rubber Tyre Type Double Girder Gantry Crane consists of several key structural, mechanical, and electrical components that work together to ensure efficient lifting and mobility. Below is a detailed breakdown of its major components:

 

1. Main Structural Components

A. Double Girders (Main Beams)

Two parallel steel girders (box-type or truss design) spanning the crane's width.

Provide high load capacity and rigidity.

Support the trolley and hoist movement.

 

B. End Carriages (Legs & Wheels)

Vertical Legs: Support the girders and connect to the wheel assemblies.

Rubber Tires:

Pneumatic Tires (for softer surfaces) or Solid Rubber Tires (for heavy-duty use).

Allow mobility without rails.

Steering System: Hydraulic or electric steering for maneuverability.

C. Cross Beams & Bracing

Reinforce the structure for stability.

Prevent girder deflection under heavy loads.

 

2. Lifting Mechanism Components

A. Hoist Unit

Electric or Hydraulic Hoist: Lifts and lowers the load.

Wire Rope & Hook Block: For load attachment.

Drum & Motor: Drives the lifting mechanism.

 

B. Trolley System

Moves the hoist along the girders (side-to-side).

Includes:

Trolley frame

Drive wheels

Motor & gearbox

C. Spreader or Lifting Attachment (Optional)

Crane Hooks, Grabs, Magnets, or Spreaders (for containers, coils, etc.).

3. Drive & Motion Systems

A. Travel Drive System

Wheel Motors: Electric or hydraulic motors powering the rubber tires.

Brakes: Fail-safe braking for safety.

Steering Mechanism: For directional control.

B. Power Supply

Diesel Generator (for remote areas).

Electric Cable Reel (if grid-powered).

 

 

4. Control & Safety Systems

A. Operator Controls

Cabin Control: Operator sits in a cabin on the crane.

Remote Control: Wireless radio remote for flexible operation.

B. Safety Devices

Limit Switches: Prevent over-travel of hoist/trolley.

Load Limiter: Prevents overloading.

Anti-Collision System: For multi-crane operations.

Outriggers (Optional): Stabilizers for heavy lifts.

 

5. Auxiliary Components

Lighting & Warning Signals (for night/site safety).

Anemometer (wind speed monitor for outdoor use).

Bumpers & Guards (protect crane and surroundings).

SKETCH

 

Main technical

 

Advantages of Rubber Tyre Type Double Girder Gantry Crane

High Mobility & Flexibility

Moves freely on rubber tires (no rails needed).

Ideal for temporary job sites (construction, ports, shipyards).

Can be relocated easily compared to rail-mounted cranes.

Heavy Load Capacity

Double girder design supports 5–500+ tons, making it suitable for heavy industries.

More stable than single-girder cranes for large-span lifting.

Versatile Applications

Compatible with hooks, grabs, magnets, and spreaders for different loads (containers, steel coils, machinery).

Adjustable span and lifting height for customized needs.

Outdoor & Rough Terrain Use

Pneumatic or solid rubber tires adapt to paved/semi-paved surfaces.

Some models have all-terrain capabilities (with proper ground support).

Cost-Effective Installation

No need for rail tracks, reducing setup costs.

Faster deployment than fixed cranes.

Advanced Control Options

Radio remote control for flexible operation.

Cabin control for precision in heavy-duty tasks.

Applications of Rubber Tyre Type Double Girder Gantry Crane

1. Ports & Shipyards

Container handling (loading/unloading from ships/trucks).

Shipbuilding & repair (lifting heavy ship parts).

2. Construction Sites

Prefab concrete lifting (beams, columns).

Steel structure installation (bridges, industrial plants).

3. Steel & Metal Industries

Moving steel coils, plates, and molds.

Handling large castings and machinery.

4. Logistics & Warehousing

Heavy cargo loading/unloading in open yards.

Intermodal transport (between trucks, trains, and storage).

5. Power Plants & Heavy Industries

Turbine and generator installation.

Maintenance of large industrial equipment.

6. Wind Energy Sector

Wind turbine component assembly (blades, nacelles).

 

The production process of a 200-ton mobile boat/marine lift crane involves several stages, from design and engineering to fabrication, assembly, and testing. Below is a detailed breakdown of the typical production process:

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1. Design & Engineering

Conceptual Design: Engineers create initial sketches and 3D models based on load capacity (200 tons), reach, mobility, and environmental conditions (marine use).

Structural Analysis: Finite Element Analysis (FEA) ensures the crane can handle dynamic loads, wind, and wave forces.

Hydraulic & Electrical Systems: Design of hydraulic cylinders, winches, and control systems for smooth lifting operations.

Material Selection: High-strength steel (e.g., ASTM A514) for corrosion resistance in marine environments.

Regulatory Compliance: Meets standards like DNV-GL, ABS, or Lloyd's Register for marine cranes.

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2. Material Procurement

Steel Plates & Beams: Sourced for the boom, chassis, and structural framework.

Hydraulic Components: Pumps, cylinders, hoses, and valves from certified suppliers.

Electrical Systems: Motors, sensors, and control panels (often waterproof for marine use).

Wire Ropes & Sheaves: High-grade steel cables for lifting.

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3. Fabrication

A. Structural Fabrication

Cutting & Shaping: CNC plasma/laser cutting for precision parts.

Welding: Automated and manual welding (Submerged Arc Welding for thick sections).

Boom Construction: Lattice or telescopic design for strength and mobility.

Chassis & Outriggers: Reinforced for stability during lifts.

B. Hydraulic & Mechanical Assembly

Hydraulic System: Installation of pumps, cylinders, and hoses.

Winches & Drums: Mounted for lifting and lowering operations.

Slewing Mechanism: Allows 360° rotation (if applicable).

C. Electrical & Control Systems

Control Cabin: Waterproof operator station with joysticks/sensors.

Load Monitoring: Load cells and limit switches for safety.

Power Supply: Diesel engine or electric motor (marine-grade).

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4. Assembly & Integration

Boom Installation: Mounted onto the chassis with pivot points.

Counterweights: Added for balance (if required).

Final Wiring & Plumbing: Connecting hydraulic and electrical systems.

Painting & Coating: Anti-corrosion paint (epoxy or zinc coatings).

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5. Testing & Quality Control

Load Testing: Lifting 200 tons (+25% overload test, per standards).

Functional Tests: Checking hydraulic movements, rotation, and stability.

Environmental Tests: Salt spray tests for marine durability.

Safety Checks: Emergency stop systems, overload alarms.

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6. Delivery & Commissioning

Transport: Disassembled for shipping or delivered as a mobile unit.

On-Site Assembly: Reassembled at the dock or shipyard.

Operator Training: Handling and safety protocols.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.