• Model NO.：trolley block
• Trademark：SYM
• Origin：China
• HS Code：8431499900
• Production Capacity：5000piece,Month

Basic Info.

Model NO. trolley block Trademark SYM Origin China HS Code 8431499900 Production Capacity 5000piece/Month

Product Description

Hot Selling RCV/VAC Slewing Block for Tower Crane 

The main technical feature 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,enhance the dust prevention and anti-condensation capacity of the circuit board.







SYM HOIST & TOWER CRANE EQUIPMENT CO.,LTD located in Shenyang China is one of the biggest supplier and export of tower crane, luffing crane , topless crane , passenger hoist along with the spare parts for them. With 20 years' experience on tower crane rent , installation , repair and reconstruction, the company has more than 50 experienced mechanical and electrical engineer responsible for the installation guide, failure diagnosis, maintainance and reconstruction for the tower crane at the construction site.
Having a long-term and good cooperative relationship with China's most famous manufacturer of tower crane and passenger hoist like YONGMAO, SANYO, Sichuan SCM, Zoomlion, GJJ, BAODA,etc. The company can offer you the best quality original tower crane and passenger hoist with most competitive price.