1> General type electric hoist . Wire rope hoist is a
small-sized lifting equipment , which can be mounted on single beam
bridge , gantry and jib crane . With slight modification , it can
also be used as a winch , It is widely used in factories , mines ,
harbours , warehouse, cargo storage areas and shops , essential in
raising working efficiency and improving working conditions .
The hoist has two models , one is single speed , the other is
double speed (slow speed and fast speed ) , at a low speed , it can
do precise loading and unloading , mounding of sand box ,
maintenance of machine tools , etc .The hoist capacity from 0.5
ton-63 ton .
2> Metallurgical hoist is mainly used for lifting molten metal ,
its lifting capacity is less than or equal to 10 ton . Lifting
height is less than or equal to 20m , the working environment
temperature is -10°C~60°C and relative humidity is less than 50%
under the condition of 40°C . Electric hoist has many protection
functions , such as double braking, double limiting and heat
insulation plate etc . It can be matched with the overhead crane .
3> Explosion-proof hoist , its mechanical structure is same with
ordinary general hoist , But the electric parts use explosion-proof
electrical device and explosion-proof grade , the hoist is adopted
explosion-proof motor , explosion-proof electrical device etc .