25ton double girder end carriage suitable for bridge crane
1. Lightweight and high-strength structure
Box beam design: Steel plates are usually welded into a closed box structure, taking into account torsional and bending strength, achieving lightweight while ensuring load-bearing capacity, in line with the compact and efficient design concept of European cranes.
2. Integrated drive system
Three-in-one drive unit: The end beam has a built-in "motor + brake + reducer" integrated drive device (such as SEW brand), which has a compact structure, high transmission efficiency, and convenient installation and maintenance.
Dual drive configuration: Usually both end beams are equipped with independent drives to ensure smooth operation of the trolley, good synchronization, avoid deflection or rail gnawing, and are especially suitable for long-span working conditions.
3. Modular and detachable connection
Flange bolt connection: The end beam and the main beam are connected by high-strength bolt flanges, without on-site welding, which is convenient for transportation, installation and disassembly and adjustment during later maintenance.
Standardized interface: The drive mechanism, walking wheel set and other components adopt modular design, which can be quickly replaced or upgraded to reduce downtime.
4. High-precision guidance and stable operation
Double-flange wheel + horizontal wheel guidance: The wheel has double flanks to prevent derailment, and the horizontal guide wheel set (partial design) is used to enhance lateral stability and adapt to track installation errors or slight deformation.
Precision machining process: The wheel tread and flank are quenched, and the track adopts QU80/QU100 type to ensure low noise and low wear during operation and extend service life.
5. Safety protection and intelligent control
Buffer and anti-collision device: Polyurethane buffers or hydraulic dampers are installed at both ends of the end beam to absorb collision energy and protect the crane and plant structure.
Limit and monitoring: Built-in trolley travel limit switch and anti-collision sensing system, some high-end models are equipped with wireless synchronous monitoring module, and real-time feedback of operating status to the control system.
6. Optimization of environmental adaptability
Anti-corrosion treatment: After shot blasting and rust removal, the surface is sprayed with epoxy zinc-rich primer + polyurethane topcoat, with a corrosion resistance level of C4 (ISO 12944), suitable for humid, dusty or mild chemical corrosion environments.
7. Low maintenance design
Self-lubricating bearings: The travel wheel bearings adopt sealed grease lubrication design to reduce the frequency of daily maintenance.
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Bridge Crane 25 Ton Double Girder End Carriage 20-40m/Min Images
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