QB Explosion Proof Bridge Crane

OVERVIEW

Mainly consists of bridge structure, lifting mechanism, crane traveling mechanism, electric equipment etc.

Explosion-proof performance of all motors and electrical equipments of QB type explosion-proof overhead cranes 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 Exd Ⅱ BT4 and Exd Ⅱ CT4.

Applied to sites where explosion transfer capacity is not 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).

FEATURES

Overall Feature

The machine: Novel structure, attractive appearance and good technics;

Operation: Flexible and smooth, safe and reliable

Mechanical Part

Double girder, welding box beam, camber meet national standard;

Adopt high quality carbon steel, Q235B or Q345B;

Main and end girder connected through level 10.9 high-strength bolt

Crane drive: IP54 or IP55, level F insulation

Efficiency brake, long life

Electric Part

Security trolley line or angle steel trolley line

The power supply of Travelling trolley adopt flat cable

Smoothly sliding, overall nice

Safety Protection

For outdoor crane, should equipped with hoist mechanism, electrical box and rain cover of driving mechanism

Install collision prevention device and sound & light alarm device

Controlling Ways

Generally, ground controlling

Cab controlling is also available according to customer's requirement, working system is intermediate.

Operating cab: open style and close style, left or right installation

Direction of entrance: side, end and top.