The LH electric hoist double-girder bridge crane is a high-performance, lightweight double-girder bridge hoisting equipment that combines European design concepts with mature domestic manufacturing processes and is produced in strict compliance with FEM, DIN and ISO international standards. The whole machine adopts a double main girder box structure and is equipped with an electric hoist as the lifting mechanism. Compared with the traditional QD double girder crane, it has the advantages of small headroom, compact body, lighter weight, and lower wheel load. At the same time, it retains the core characteristics of the double girder crane of strong bearing capacity, stable operation, and large span. The equipment is suitable for most standard factories and renovated factories. It has high space utilization, can effectively increase the effective lifting height of the factory and reduce civil engineering load-bearing costs. It is widely used in medium-high frequency and medium-heavy load material handling conditions. It is the cost‑effective preferred option bridging single‑girder cranes and heavy‑duty double‑girder cranes.

Core advantages

The LH double-girder crane has balanced comprehensive performance, strong adaptability and practicability: the equipment adopts a double-main-girder rigid structure, and its overall stability, load-bearing capacity and anti-sway performance are far superior to single-girder cranes. The structural deflection is extremely small, which can meet the needs of medium-to-heavy load and long-span operations; the main body structure is compact and the low wheel load, which is important for the factory building. It imposes low load requirements on factory buildings and can be adapted to new and old workshops without expensive factory building modifications, and low‑headroom workshops can also achieve efficient operations; The unit comes standard with variable‑frequency stepless speed regulation system, and hoisting, crane travel and trolley travel operations start and stop smoothly without impact, the low-speed alignment is accurate, and the operation noise is low, which greatly improves the safety and operation efficiency of material handling; It adopts a modular integrated design. The core electric hoist, drive mechanism, and electrical system are highly standardized and are easy to disassemble and repair. They are equipped with high-quality reducers and special motors. They have low failure rates, long service life, and low life-cycle operation and maintenance costs. The equipment safety protection system is complete, and comes standard with overload limiters, upper and lower travel limiters,emergency stop and phase failure protection, buffering and anti-collision devices, etc., have a high level of electrical protection, and can be equipped with anti-sway, load monitoring, intelligent monitoring and other functions as needed; it supports wireless remote control, ground operation, and cabin control modes. Explosion-proof, anti-corrosion, and special voltage models can be customized to adapt to various complex working conditions such as machinery manufacturing, warehousing, and light industry.

Technical parameters