1. The cranes don't need any additional accessories, hang the grab to the crane hook (or shackle connection) directly then can operate the grabs.

2. Belong to the eco-friendly grab ,just need a battery, by mechanical and hydraulic systems work together, then can complete the loading and unloading of cargo;

3. Grab structure is simple, hydraulic and electric control system components is relatively less, and less trouble, even trouble is easy to repair, and maintenance cost is less;

4. Grab can be easily controlled within 100 meters from the grab center;

5. Equipped with high-capacity battery allows the device to 100 hours of continuous work without to replace the battery;