QBExplosion proof bridge crane with all motors、Electrical explosion-proof performance meets the requirementsGB3836《爆炸性气体环境用防爆电气设备》要求，整机性能符合JB/T5897-2014《overhead explosion-proof crane 》标准规定，经国家防爆检验机构检验合格，并取得有防爆合格证及制造许可证，防爆标志分别为EXdIICT4/EXdIIBT4。

QBType explosion-proof bridge crane适用于工厂内引爆能力不高于IIBorIIClevel，引燃温度组别为T1-T4Places where combustible gases or vapors form explosive gas mixtures with air in groups，适用的危险area域为1District or2area。QBType explosion-proof bridge crane还可配以多种专用吊具进行特殊作业，When露天使用Time带有防雨设备。选用Time应注明工作制度，The highest working environment、Technical requirements for minimum temperature and type of power supply，It can also be designed and manufactured according to the span requirements of users，overhead explosion-proof crane 非标定做、Explosion proof crane定制订制。

QBType explosion-proof bridge craneproduct常规操作为地面操作，Driver's cab operations can also be carried out according to user needs，该product最大吨位可达200t。 overhead explosion-proof crane 是适合在具有爆炸性气体环境1area、2District or可燃性粉尘环境21area、22area中工作的overhead explosion-proof crane ，符合JB5897-2006，GB/T14405-2011，GB6067标准规定，Suitable for medium、轻工作制易燃易爆混合物的机械、化工车间、warehouse、料场的装卸和检修等场所一般吊装作业。overhead explosion-proof crane 一般为室内工作，工作环境温度为-20～+400C，相对温度不大于90%（When250CTime），工作环境气压为0.08～0.11MPa。

Explosion proof cranes are divided into three categories according to their usage environment：
Ⅰ类矿用crane
Ⅱ类Factory crane
ⅢClass cranes are classified based on the maximum test safety gap or minimum ignition current ratio applicable to explosive gas mixtures in electrical equipmentA、B、C三level，Explosion proof crane的工作level别为A3、A5、A6、A7。

QBType explosion-proof bridge crane是采用国际先进标准制造的系列product。The overall structure is novel、Beautiful appearance、Good craftsmanship、Flexible and stable operation、Safe and reliable。
QBtype防爆桥式cranecharacteristic：
（1）桥架采用箱形主梁，自动埋弧焊焊接。
（2）小车导电采用工字钢轨道电缆导电新装置，Safe and reliable。
（3）起升机构根据要求还可设第二套安全装置。Increase reliability。
（4）Standardization of components、Serialization、Generalization。
（5）The control room has a wide view，All mechanisms are operated inside the control room，工作舒适操纵灵活。