How to Operate Rubber Tyre Gantry  Crane

What is an Rubber Tyre Gantry  Crane?

Rubber tyre gantry cranes find extensive application across various scenarios. At container terminals, they serve as the primary equipment for container loading, unloading, and stacking. They swiftly transport containers unloaded from container ships to designated storage locations or lift containers awaiting shipment from the yard to the terminal front for loading onto ships, significantly enhancing port container throughput efficiency. At rail freight yards, rubber tyre gantry cranes facilitate the transshipment of rail containers, enabling seamless connections between rail and road transport modes to support multimodal cargo movement. In large logistics warehouses, rubber tyre gantry cranes handle goods intake/outtake and internal relocation tasks, assisting warehouse managers in optimizing storage layouts to maximize space utilization and streamline inventory management.

Rubber Tyre Gantry Crane Types

With industrial technological advancements, rubber tyre gantry cranes have evolved into multiple models to meet diverse operational requirements. Core types include:

Electric Rubber Tyre Gantry Crane 

Developed in response to environmental and energy-saving demands, these cranes operate entirely on electricity with zero fuel consumption. Ideal for areas with strict noise and emission controls, they feature low operational noise and zero exhaust emissions, improving the working environment. Their operating costs are lower than fuel-powered models, and they often incorporate intelligent and automated systems. These systems optimize performance, streamline processes, reduce human error, and enhance efficiency and safety, making them the mainstream choice for large green ports.

Single-Gantry Rubber Tyre Gantry Crane

Features a single main gantry beam for a streamlined structure. Suitable for small to medium-sized warehouses with a lifting capacity of 20-40 tons, meeting routine cargo handling needs. Compared to double-gantry models, it offers lower investment costs, making it ideal for budget-conscious enterprises with moderate handling demands—such as small logistics warehouses and light industrial facilities—enabling efficient cargo movement at a low cost.

Double-Girder Rubber Tyre Gantry Crane

Equipped with two main girders, offering lifting capacities of 40-65 tons with enhanced stability. Suitable for large warehouses and heavy-duty cargo handling scenarios, such as steel logistics warehouses lifting steel materials. The double-girder design evenly distributes weight, reducing sway and tilt risks during operation to ensure safe heavy-load lifting. It demonstrates significant advantages in long-span, high-intensity operations.

Diesel Rubber Tyre Gantry Crane

Powered by a diesel engine, it offers high autonomy without requiring external power sources. Suitable for remote ports or temporary sites without stable electricity supply, it can independently complete loading, unloading, and handling tasks. However, it suffers from high noise levels, significant exhaust emissions, and costly diesel consumption, making it irreplaceable only in specific power-free scenarios.

How does a Rubber Tyre Gantry Crane work

Mechanical Structure

The core mechanical structure of an rubber tyre gantry  crane comprises lifting, traveling, slewing mechanisms, and a steel frame, which work together to achieve cargo handling:

• Lifting Mechanism: Consisting of a motor, drum, and steel wire rope, it uses the motor to drive the drum to wind and release the rope, enabling vertical cargo lifting. It is equipped with a height limiter to prevent hook overrun and features multi-speed adjustment to accommodate different loads.
• Travel Mechanism: Centered on rubber tires, integrated with drive, steering, and braking systems. Enables forward/reverse movement and multi-angle steering for confined spaces. Braking includes standard and emergency functions to ensure safe stopping.
• Slewing Mechanism: Composed of slewing bearings and drive units. Rotates the superstructure via pinion-ring gear engagement for horizontal multi-angle cargo handling. Equipped with high-precision control systems for accurate positioning.
• Steel Frame: Constructed from high-strength steel in a portal structure, it bears the entire machine load and wind loads. Optimized design prevents fatigue damage while providing stable support for other mechanisms.

During operation, the lifting mechanism hoists cargo, the travel mechanism moves to the target position, the slewing mechanism adjusts orientation, and the steel frame ensures overall stability.

Control System

Centered around the electrical control system—functioning as the “brain” that directs component operations—its primary components and functions are as follows:

• Controller: Typically a PLC that processes received commands and sensor data, sending signals to actuators to execute functions like lifting and traveling, while also providing fault diagnosis capabilities.
• Operator Interface: Includes joysticks, buttons, and touchscreens for command input and parameter monitoring. Some models support remote operation for hazardous environments.
• Sensors: Such as load, height, and position sensors provide real-time feedback on cargo weight, lifting height, and other parameters for precise control.
• Actuators: Comprising motors, hydraulic valves, etc., they execute mechanical movements based on controller signals. Motors drive mechanical systems while hydraulic valves regulate fluid flow.

Workflow: Operator issues command → Controller processes sensor data → Actuators drive motion → Sensors provide real-time feedback for adjustments, ensuring smooth operation.

Safety and Monitoring

A protective system is established through sensors, monitoring systems, and safety devices:

• Sensor Monitoring: Weight sensors prevent overload, height sensors prevent top collision, position sensors control operating range, angle sensors prevent tipping, and wind speed sensors monitor wind conditions—triggering alarms when exceeding safety thresholds.
• Comprehensive Monitoring: Cameras assist in observing the work environment, with some systems featuring image recognition capabilities. Simultaneously monitors temperature and vibration of components like motors and reducers, providing early fault warnings and recording operational data for maintenance reference.
• Safety Devices: Includes emergency braking, anti-sway, and anti-collision systems. Emergency braking enables rapid shutdown, anti-sway devices suppress cargo swaying, and anti-collision systems utilize laser technology to avoid collisions.

Advantages of Rubber Tyre Gantry Cranes

High Flexibility

Rubber tyre gantry  cranes utilize rubber tires for mobility, eliminating reliance on fixed rails. They freely traverse work sites, rapidly reposition, and adapt to scenarios like container yards and rail freight yards, avoiding efficiency losses caused by rail constraints. Their tires support straight, lateral, figure-eight, crab-walk, and on-the-spot turning, enabling agile obstacle avoidance and precise docking in confined spaces. They effortlessly handle complex site layouts, efficiently adapting to both large freight yards and small-to-medium warehouses.

High-Efficiency Operation

Rapid positioning is a core advantage. Leveraging high-precision sensors and an intelligent control system, the rubber tyre gantry crane swiftly locates target cargo, reducing positioning time and increasing handling frequency. Its precise control capabilities—combining electrical systems with sensors—accurately adjust lifting, travel, and slewing motions to minimize cargo sway and reduce damage risks. These dual features significantly boost cargo handling efficiency while lowering operational losses.

High Safety

Outstanding wind resistance design features a high-strength steel mast complemented by wind anchoring devices, guy wires, and rail clamps. These secure the structure against tipping during non-operation and enhance wind resistance during operation, making it suitable for windy environments like ports. Comprehensive safety systems include:

– Collision avoidance systems using laser and ultrasonic distance monitoring, triggering automatic alerts and braking when risks are detected;

– Emergency braking systems enabling rapid shutdown to control risks; The load monitoring system provides real-time weight measurement, triggering alarms and halting lifting operations upon overload, ensuring comprehensive protection for personnel and equipment.

Maintenance Efficiency

Compared to fixed-track cranes, rubber tyre gantry cranes eliminate the need for track installation, avoiding high maintenance costs and downtime risks associated with track wear and deformation. Rubber tires are easy to replace and maintain, offering extended service life and low replacement frequency. The electrical system employs a modular design with clearly defined component connections, enabling rapid fault localization and replacement to minimize repair time. Some models incorporate intelligent monitoring systems that continuously track equipment status and issue early fault warnings, reducing failure rates and maintenance costs while minimizing downtime to ensure high operational availability.

How to Operate an Rubber Tyre Gantry  Crane

Pre-Operation Preparation

Pre-operation checks form the foundation of safe rubber tyre gantry  crane operations. Comprehensive inspections must cover personnel, site conditions, and equipment to eliminate potential risks.

Personnel Preparation: Qualification Verification and Safety Briefing

Operators must meet two prerequisites: First, they must undergo professional training to understand the rubber tyre gantry  crane’s structure, operating procedures, and emergency response protocols. Second, they must hold a nationally recognized special equipment operator certification. Unlicensed personnel are strictly prohibited from operating the equipment.

A safety briefing must be conducted before each operation, covering: cargo type (e.g., container weight and dimensions), site-specific conditions (e.g., temporary obstacles, ground slope), and safety hazards (e.g., overhead cable distribution, overlapping work zones). This briefing reinforces operational protocols to ensure operators maintain full concentration and understand their safety responsibilities.

Site Inspection: Ensuring Operational Stability

The work site must meet three core requirements:

• Ground Conditions: The surface must be level, solid, free of pits, protrusions, or soft spots. Ground bearing capacity must match the combined weight of the crane and cargo (typically confirmed beforehand via ground surveys or load tests). If localized soft spots exist, reinforce with steel plates or crushed stone.
• Obstacle Clearance: Remove debris, tools, temporary structures, etc., from the site. Verify no high-voltage cables, trees, walls, or other obstacles exist around the perimeter to prevent collisions during crane rotation or movement.
• Slope Control: Site inclines must comply with equipment design standards. If slopes exceed specifications, adjust the operation plan or implement anti-slip measures to prevent crane slippage.

Equipment Inspection: Verify Critical Components Item by Item

Conduct a comprehensive inspection of the crane’s core components following the sequence “from exterior to interior, from static to dynamic”:

• Travel System: Check if rubber tire pressure is normal (refer to standard values in the equipment manual), inspect treads for cracks, bulges, or embedded foreign objects, verify steering rods and bearings for looseness, and ensure steering is flexible without binding;
• Hoisting System: Inspect wire rope for broken strands and wear (replace if exceeding specified limits). Check drums and pulleys for deformation or abnormal noise. Test braking system: Ensure responsive braking during idle operation and standard braking distance under full load.
• Power and Hydraulic System: For diesel models, check engine oil, fuel, and coolant levels. For electric models, verify battery charge and motor insulation. Inspect hydraulic lines for leaks, check hydraulic fluid level and condition (no emulsification or discoloration), and ensure stable hydraulic pressure within normal range after startup.
• Electrical System: Inspect wires and cables for damage or aging. Verify responsiveness of control buttons and operating handles. Ensure proper display of indicator lights (e.g., fault lights, height limit lights) and screens. Test safety devices (e.g., overload alarms, limit switches) under power to confirm they trigger alarms and cut off operation normally.

Operating Procedures

Operations must adhere to the principle of “progressive, smooth, and precise” execution. Each step must be coordinated with equipment status and operational requirements, avoiding abrupt stops or starts.

Power Startup: System Initialization Check

• Turn on the main switch in the electrical control cabinet, then sequentially activate the auxiliary power and main power. Observe all electrical components for smoke or abnormal noises.
• Activate the hydraulic system. Once pressure reaches the rated value, inspect hydraulic lines for leaks while ensuring all control handles are in the “neutral position” to prevent unintended movements.
• Test indicator lights, alarms, and surveillance cameras (if equipped) individually to ensure real-time equipment status feedback with no fault codes displayed.

Engine Preheating: Adapt to Different Power Types

• Diesel Engine Models: After starting the engine, idle for a period (extend duration in low-temperature environments). Monitor coolant temperature and oil pressure (until reaching normal operating ranges). Once parameters stabilize, slowly operate all mechanisms under no-load conditions to break in components.
• Electric models: No extended warm-up required after startup. Test motor operation for absence of harsh noises. Battery voltage must remain above a high percentage of rated value. If voltage is too low, recharge before operation.

Load Lifting: Smooth Connection and Hoisting

• Lifting Device Alignment: Operate travel or slewing mechanisms to precisely position the lifting device (e.g., container spreader) over the load. Confirm alignment with load locking holes via camera or visual inspection to prevent skewing.
• Secure Connection: Activate the lifting device locking mechanism. Verify the locking pins are fully inserted into the load’s locking holes (confirmed by indicator lights or sensors). Lift the load slightly to check for stability, ensuring no tilting or shifting occurs.
• Smooth Lifting: Raise the cargo at low speed. Pause briefly once the cargo reaches a certain height above ground. Re-check the lifting device lock status and wire rope tension. After confirmation, adjust the lifting speed according to operational requirements (slower for full loads, slightly faster for empty loads) to prevent cargo swaying.

Operational Monitoring: Real-time Equipment Status Control

• Traveling: Maintain constant speed when moving the crane. Avoid sudden acceleration, deceleration, or steering. Slow down in advance when turning, and confirm no obstacles via rearview mirrors or monitoring systems.
• System Monitoring: Continuously observe hydraulic pressure gauges (no abnormal fluctuations), current/voltage meters (no abnormal fluctuations), and listen for motor/gearbox sounds (normal operation produces a steady hum without sharp noises). Immediately stop operation and inspect if sudden pressure drops, excessive current, or abnormal noises occur.
• Load Monitoring: Continuously monitor cargo weight via the overload alarm. When approaching a high percentage of rated capacity, the alarm will issue a warning. Exceeding rated load will automatically halt lifting operations. Forced operation is strictly prohibited.

Load Lowering: Precise Positioning and Placement

• Alignment Adjustment: Position the load above the target location. Fine-tune the position using travel and slewing mechanisms to align the load with the stacking point (keeping deviation within a minimal range). Simultaneously confirm no personnel or obstacles are present below.
• Slow Lowering: Lower the load at low speed. When the load is close to the ground, readjust the position to ensure smooth ground contact.
• Release Lifting Gear: After stable placement, operate the lifting gear release mechanism. Verify all locking pins are fully retracted. Slowly raise the lifting gear to a safe height (typically above surrounding obstacles) to prepare for the next cycle.

Safety Precautions

Safety must be maintained throughout all operations. Strictly adhere to the principle of “no violations, no complacency, no recklessness” to prevent all risks.

Strictly Adhere to Load and Speed Limits

• Load Restrictions: Overloading is strictly prohibited. Consider the “dynamic load factor” to prevent impact damage to equipment.
• Speed Restrictions: All mechanisms must operate at specified speeds. During lifting:

– Full-load speed is slower; empty-load speed may be appropriately increased.

– Traveling: Full-load speed is slower; empty-load speed may be appropriately increased.

Speeding to meet deadlines is strictly forbidden.

Maintain Safe Distances and Operational Boundaries

• Personnel Clearance: No personnel are permitted within the crane’s operational radius (typically the maximum swing range of the lifting device). Ground personnel must maintain a safe distance from equipment. If coordination is required, clear communication via walkie-talkie is mandatory, and personnel may only approach after the equipment has come to a complete stop.
• Equipment spacing: When multiple cranes operate simultaneously, maintain sufficient separation to prevent collisions or sling entanglement. Ensure safe distances from surrounding structures and cables to avoid scraping.

Mitigate poor ground and environmental risks

• Ground restrictions: Never operate on soft, muddy, icy, or waterlogged surfaces. Clean oil spills to prevent tire slippage.

The Importance of Proper Rubber Tyre Gantry  Crane Operation

Proper operation of rubber tyre gantry  cranes is critical for personnel safety, equipment longevity, production efficiency, and corporate profitability. Violations pose multiple risks:

• Equipment Level: Abrupt stops/starts, speeding, or overloading accelerate component wear, leading to wire rope failure, brake malfunction, structural deformation, and significantly shortened equipment lifespan. Personnel-wise: Accidents like cargo drops, equipment overturns, or collisions can cause serious injuries or fatalities, inflicting irreparable losses on victims’ families and businesses. Production-wise: Failures or accidents necessitate downtime for repairs, disrupting logistics flows, causing cargo backlogs and transport delays, increasing costs, and damaging corporate reputation.

Conversely, standardized operation significantly reduces accident probability by adhering to load and speed limits, maintaining safe distances, and correctly using safety devices.

Conclusion

Rubber tyre gantry  cranes, as indispensable equipment in the industrial sector, play a pivotal role in numerous settings such as container terminals, rail yards, and logistics warehouses. Their significant advantages—high flexibility, efficient operation, superior safety, and ease of maintenance—make them a powerful guarantee for the efficient functioning of modern logistics and industrial production.

Looking ahead, as industries continue to evolve and technology advances, Rubber tyre gantry  cranes will see broader application. This expansion will demand higher standards for operational compliance and safety. We must consistently prioritize proper Rubber tyre gantry  crane operation, continuously strengthen safety awareness, and enhance operational skills. This commitment ensures secure, stable, and efficient production processes, thereby contributing to the thriving development of industrial sectors.