ZTM is a professional manufacturer of tower cranes in China, we also supply all kinds of spare parts for tower cranes. Tower crane Slewing Control Block we supplied adopting the coating treatment on the printed circuit board, which enhances the circuit board capacity of dust-prevention and anti-condensation. And the slewing block combined the controller and thyristor module to make it easier for users to connect the wires, and prevent the damage of the controller and thyristor module caused by Mis-wiring of the customer.

The main technical feature is as follows:
1. This product combined the controller and thyristor module, the connection of the users is simple and easy. This is to prevent the damage of the controller and thyristor module caused by Mis-wiring of the customer.
2. Realize the best optimization of AC voltage control curve and DC voltage control curve.
3. With the function of inching during operation, realize the accuracy.
4. The electronic components adopt the imported industrial-grade chip, on the control panel directly with power supply and direction indicator light.
5. Adopt the coating treatment on the printed circuit board, enhancing the dust prevention and anti-condensation capacity of the circuit board.