Construction hoist elevator safety devices SAJ30 40 50 60

SAJ serials pinion and cone progressive safety device is the most important safety  device in the pinion and rack builders hoist, which can prevent the cage running  over speed, and effectively reduce the cage dropping accident.

The safety devices developed by Shanghai Research Institute of Building Sciences has passed through the evaluation presided by the Ministry of Construction in 1989. The specialists at the meeting made a high appraisal of reasonable compact structure, stable action speed, highly accurate calibration, safe and reliable, braking smoothly and light weight etc. features of the safety devices. 

The devices was recommended as  hightech products developed in National Eighth Five Year Plan by the Ministry of Construction, and also won the Shanghai excellent new product prize.
High quality construction hoist spare parts 
High quality GJJ, BAODA material hoist spare parts
 
All kinds of hoist spare parts , GJJ,BAODA,ZOOMLION,TIGER,
Driving device with 2-motors / 3-motors;
motor: 11kw, 14.5kw,18kw;
motor spare parts: braking system; brake sheet, motor adjustor, electromagnet,motor fan.
safety device: 30KN,40KN,50KN,60KN;
gearbox: 16:1,14:1,12:1;10:1;
coupling with rubber;
master rollers for 76 tube and 89 tube;
gear rack M8 40x60x1508mm;
gear pinion: M8,15teeth;
limit switch;
gate rollers;
counter rollers;
transformer;
Overload protect system;
cable: 3x16+2x6, 3x16+2x10