QD型吊鉤橋式起重機，主要由橋架、大車運行機構、小車、電器設備等組成。根據使用頻繁程度不同，分為A5、A6二種工作級別。該起重機動作操縱全部在司機室內完成，注: HO≤250為大車緩沖器增加的高度。

QD Model Hanger Bridge Crane mainly consists of bridgetolley travelingmechanism,.crab and electrical appliances,and is divided into 2 working grades of A5and A6 according to the use frequency.This crane operation is completed in driver's chamber.Note:HO≤250 refers to the increased height by tolley buffer.