Double-girder tire crane

Double-beam box-type structure: Utilizing two parallel box-type main beams (typically made of Q355B high-strength steel), these beams are connected transversely to form a rigid frame, resulting in a torsional stiffness improvement of over 60% compared to single-beam models. This structure enables the equipment to stably support loads ranging from 10 to 50 tons. During operations spanning 12 to 30 meters, the deflection of the main beams is controlled within L/1000, ensuring structural stability during heavy-load lifting operations.

Modular combination design: Core components such as main beams, legs, and walking mechanisms can be disassembled for transportation and assembled on site using high-strength bolts, reducing the installation cycle by 30% compared to integrated models, while also facilitating subsequent maintenance and component replacement.

Tire-mounted trackless mobility: Equipped with a 4-8 wheel hydraulic drive system, the tires are made of engineering-grade wear-resistant rubber (diameter ≥1.2m), enabling free movement on hardened surfaces such as concrete and asphalt, free from track constraints. Travel speed reaches 10-20 km/h, enabling rapid transfer between multiple workstations (e.g., cross-workshop transportation within a factory), offering over 50% better site adaptability compared to track-mounted cranes.

Flexible steering system: With full hydraulic steering and a minimum turning radius of only 5-8m, combined with a dual-direction cab design, it can maneuver flexibly in narrow spaces (such as workshop aisles and port yards), solving the pain point of “difficult turning” for large equipment.

Hydraulic leg reinforcement: Standard configuration includes 4-6 extendable hydraulic legs, which, when extended, provide a support span of 8-12m. By increasing the ground contact area, the ground pressure is reduced to 0.1-0.2MPa (equivalent to one-third that of a standard truck), enabling stable operation even on unpaved surfaces such as compacted soil or gravel sites without the need for additional ground reinforcement.

Dynamic balance control: Some high-end models are equipped with electronic spirit levels and leg pressure sensors that monitor the tilt angle of the machine body (≤3°) in real time. When the tilt angle exceeds the safe range, an alarm is automatically triggered and movement is restricted to prevent the risk of overturning under heavy loads.

High performance level: Generally reaches A5-A6 level, with core components such as motors and reducers designed for heavy-duty applications (e.g., hoisting motor duty cycle S3-60%). It can handle 10-16 hours of medium-to-high-frequency operations daily, making it suitable for continuous production scenarios in heavy machinery factories, ports, and similar environments. Precise speed control: The hoisting mechanism uses variable frequency speed control (speed range 0.5-8 m/min), supporting heavy-duty low-speed smooth positioning and light-duty high-speed efficient transportation; the trolley running speed is 20-40 m/min, and the main crane travel speed is graded by tonnage (10t model 20 km/h, 50t model 10 km/h), balancing efficiency and safety.

Heavy Industry: Used in heavy machinery factories for the installation and commissioning of machine tools and stamping equipment, capable of precisely lifting and installing large components weighing up to 50 tons; Ports and Logistics: Suitable for container yards and bulk cargo terminals, capable of loading, unloading, and stacking 20-40 foot containers; Construction: Used in bridge and wind power projects to transport precast beams, towers, and other oversized components, with outriggers capable of adapting to complex construction site terrain;​ Emergency Response: Can quickly reach accident sites to assist in the lifting and deployment of rescue equipment, with mobility far exceeding that of tracked cranes.

The double-girder tire-mounted crane combines the triple advantages of “double-girder high load capacity + tire high mobility + stable leg support,” which not only compensates for the insufficient load capacity of single-girder tire-mounted models but also overcomes the high cost of all-terrain cranes. It has become the “best value for money” choice for medium to large-scale heavy-duty and multi-site operations, especially in industrial scenarios that require a balance of efficiency, flexibility, and safety.