double girder bridge crane,
double trolley overhead crane
Mainly consists of bridge structure, crane travelling mechanism, electric equipment etc.
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.
The proof marks are ExdBT4 and ExdCT4.Applied to 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).
Contact Person: Yuantai