QB Explosion Proof Bridge Crane

What is QB Explosion Proof Bridge Crane

QB Explosion Proof Bridge Crane is designed for explosive gas atmospheres with explosion-proof electrical equipment. They can lift loads from 5 ton to 75 tons.

Explosion proof bridge crane is one of the various types of explosion-proof and hazardous environment material handling equipment, with all the motors and electrical equipment of the explosion proof crane manufactured in line with international standards and regulations. The lifting capacity of the explosion proof bridge crane is 5 to 75 tons and the working class is A4 and A5, and the specific parameters is shown in the following diagram:

製品のタイプ	QB
吊り上げ能力	5~75t
スパン長さ	10.5~31.5m
分類グループ	A4, A5
周囲温度	-20~40℃

Components of Explosion proof crane

The explosion proof crane offered by Dongqiクレーン is mainly consisted of bridge structure, lifting mechanism, crane traveling mechanism, electric equipment, etc.

Diagram of explosion proof bridge crane

Explosion Proof Bridge Crane Zoning

Hazardous areas are categorized into zones according to the assessment of the frequency of the occurrence and duration of an explosive atmosphere. A zone is an area in which an explosive gas atmosphere:

is present continuously or for long periods of time, Zone 0;
is likely to occur in normal operation, Zone 1;
is not likely to occur in normal operation and, if it occurs, will only exist for a short time. Zone 2.
Explosion Proof bridge Crane Zoning: Zone 1 & Zone 2 Hazardous Areas.

Application of Explosion proof bridge crane

の証マークExd ii BT4とExd ii CT4.

Explosion proof bridge crane is applied to sites, where 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.

DQCREANES designs and manufactures the material handling equipment for the harsh and hazardous application environments, such as, chemical plants, gas power plants, paint shops, oil refineries, and waste water treatment plants, etc.

Don't know how to choose the right crane for your hazardous environment? Contact DQCRANES NOW to find the right material handling equipment with our engineers.