Lightweight and Modular Design: 1. Overall height is 20%~25% lower than traditional cranes; 2. Self-weight is lighter by 20%~30%; 3. Max wheel load reduces 15%~20%; 4. Smaller limiting size increases working scope; 5. Light structure reduces the cost of workshops; 6. Every component designed to be a standard series and interchangeable； 8. Standard modular design makes it easy to manufacture the standard quality products. Advanced Manufacturing Technology: 1. Sandblast pretreatment on steel plates and the surface quality reaches Sa2.5; 2. CNC cutting machine cuts webs plate to insure the curved surface is smooth and accurate; 3. Seams are soldered by automatic arc welding and detected by ultrasonic and X-ray ; 4. The structure of girder and trolley is manufactured by floor-type boring lathe to insure flatness. Safety: 1. Safety supervision system is with an overload limiter and shows the load value on screen to warn operator to avoid overload; 2. Before start up, the whole system will carry out self-checking includes: power supply voltage, default phase, validity of the safe protection device and the zero button;
