Shield gantry cranes are used for lifting of the cutter and shield body of underground excavation shield tunneling machine and the tunnel support segment in the process of the construction. The trolley of this gantry crane is a rotating disc adapts to the demand of different digging direction with the flexible operation, perfect safety instructions and overload protection device system.
Shield gantry cranes have the advantage of the stable performance , high production efficiency, used for maintenance, the upper slewing can sling to meet the needs of different digging directions, flexible operation mode, with improved safety instructions and overload protection device, to ensure maximum safety of operating personnel and equipment, the electrical system uses PLC frequency adjustment, helps to control agencies, DMG design, manufacture, inspection run the latest release of national standards.
- Adopt sling, it can 360 degrees rotate, suitable for cutting wheels installation at different angles.
- Adopt double trolley structure, the two trolley can linkage, lift the knife dish, also can lift pipe piece separately.
- The lifting mechanism is open type gear transmission, cost savings.