Product Name: QB Type Explosion-proof Overhead Crane
Lifting Capacity: 5t-20t
Span: 10.5-31.5m
All motors of QB type explosion-proof overhead cranes which electrical explosion-proof performance is in line with GB3836.2-2000 "for explosive gas atmospheres with explosion-proof electrical equipment-Part 2: Flameproof "d". And the whole performance is in line with provisions of the standards of explosion-proof bridge cranes JB/T5897-1991. And all of the explosion-proof products pass the inspection conducted by the state explosion-proof product inspection organization and get the explosion-proof certificate. The proof marks are Exd Ⅱ BT4 and Exd Ⅱ CT4.
This product is suitable for explosion transfer capacity no higher than the II B or II C-class and the sites with explosive air mixture formed with inflammable gas (or steam) and air whose factory ignition temperature groups of not less than the T4 group. The applicable hazardous area: 1 division or 2 division (refer to GB3836.1-2000).
This product is generally the ground controlling and also be cab operating according to user needs. Working level: intermediate.
high automaticity
continuous production
high working frequency
high reliability and security
easy to maintain
meet customer needs
The limiting size is the lowest between the top of crab and the track of trolley, that is to say, it reduces 20%-30% compared with traditional products. Which can reduce the capacity of workshop 20% efficiently. It has hard-tooth reducer, imported wire-rope, and trinity drive. It is equipped with such protecting devices as alarm device to overloading, obliquely hanging, second protecting equipment preventing hook clashing the top, protecting the current lacking of any phrase etc. The electric appliance adjusts speed without contact or spark module, and fulfil converter function, including mini-speed and double speed, which make travelling and lifting very steady. The operating board (handle) adopts 12v safe voltage. The electric controlling can be used more than 2 million times when the voltage is 380v+5~-10%.
5t QB Type Explosion-proof Overhead Crane
10t QB Type Explosion-proof Overhead Crane
16t QB Type Explosion-proof Overhead Crane
20t QB Type Explosion-proof Overhead Crane