Explosion Proof Wire Rope Electric Hoist 5 Ton

According to GB3836.1-2000 [explosive gas atmosphere use explosion-proof electric equipment Part 1: common requirement] and GB3836.2-2000 [explosive gas atmosphere use explosion-proof electric equipment Part 2 flameproof type d], motor and electrical appliances of explosion proof wire rope electric hoist are explosion proof type. When explosion proof grade is Exd II CT4, traveling mechanism  should do spark proof treatment. The whole machine meets standard of JB/T10222-2001 [explosion proof wire rope electric hoist], explosion proof grade have Exd II BT4 and Exd II CT4 two kinds. It can be installed under workshop fixed suspending rail to use individually and can be used together with LXB explosion proof electric suspension single girder crane, LB explosion proof electric single girder crane and explosion proof electric hoist double girder crane. The capacity is 1t-32t, working environment temperature is -25ºC~40ºC.

HB series explosion proof electric hoist adapts to environment in factory that have explosive gas formed by inflammable gas, steam and air of which explosion proof grade is less than B grade or C grade and ignition group is more than T4(135ºC) group. And the explosion proof electric hoist adapts to 1 area or 2 area, not 0 area.

Notes:
0 area: Under normal circumstances, the situation that explosive gas mixture appear continuously in a very short time or exist for a long time.
1 area: Under normal circumstances, the situation that explosive gas mixture maybe appear.
2 area: Under normal circumstances, explosive gas mixture can not appear, but under abnormal circumstances that equipment is out of order or misoperation takes place, the explosive gas mixture appears occasionally in a short time.
 
Dangerous gas that explosion proof electric hoist can be used in is listed as follows. Refer to the appendix of GB3836.1 for other dangerous gas that has not been listed into the follow table.

Configuration
 
Electric wire rope hoist:
1- Lifting Mechanism
– Closed winch combined with motor, gears, drum, hook, sheaves, shaft, coupling, rope guide etc.
– Lifting speed: single or dual as per requirements
– Overload limiter applied
– Lifting limiter applied
 
 
2-Trolley
– LD Driver
– Traveling speed: single or dual or step less as per requirements
 
 
3-Control
– Independent pendent control
– Wireless control as option
 
4-Painting
– Corrosion protection through rust removal by mechanical shot blasting SA 2.5
– First layer of coating epoxy 30 microns
– Second layer of coating epoxy 30 microns
– Third Layer of coating of polyurethane 40 microns
– Average thickness: about 100 microns
– Color: yellow or green as per requirements
 
5-Safe Protection
– Emergency-off switch
– Overload protect
– Earth protection
– Zero Position Protection
– Lifting travel protection
– Load display as option
 
Features Advantages
 
 Compact structure, light weight, safe and reliable
– Wide used and interchangeable of components
– Easy maintenance, easy operation, high performance
– Asynchronous Conical rotor motors, B or F class insulation, IP44, IP54 protection
– Rolled rope drum, light dead weight, made from superior cast iron, high intensity.
– Spring-loaded sturdy safety catch, ensuring slings not release safe and reliable
– Overload limiter to ensure the safe operation
– Reasonable layout of control cabinet, easy to repair
– Limit switch is of high precision, allows the limiting of the hook’s travelling in its highest position and its lowest position.
 
3.Tailor Made
 
Building hoist:
– Micro speed for precise loading
– Lifting height over 30m
– Anti-sway for special application