SQJ7-crane: 

1) Alternating current frequency: 50Hz (60Hz)

2) Voltage: 380V (440V)

3) Best weight of crane: 5 – 50MT/10MT

4) Can be used to grab bucket derive series crane



SQJ7-I: 

Close type with upentironment temperature of +500 ~ +350°C



SQJ7-II: 

Opening type with entironment temperature of +100 ~ +300°C



SQJ7-III: 

The heat preservation type with entironment temperature of -250 ~ +400°C

Features:

SQJ7-crane: be the same with alternating current 50Hz (60Hz) voltage: 

380V (440V) it is used of middling, the best weight of crane (5t - 50t / 10t), 

also do use of grab buckeect derive series crane. 



SQJ7-I: the crane of close up environment temperature: 500 – 350°C

SQJ7-II: the crane of opening environment temperature: 100 – 300°C

SQJ7-III: the crane of heat preservation, environment temperature: -250 - 400°C