QA型电磁通用桥式起重机依据GB/T14405-2011标准所设计、制造；该型号起重机是在QD型通用桥式起重机的基础上，增加圆型或矩型电磁吸盘及其电控系统而成，为吊钩、电磁两用起重机。
    本起重机带有可卸的电磁吸盘，适用于机械、冶金、造船等车间、仓库或货场在固定跨间装卸和搬运具有磁性的黑色金属制品与材料(钢料、铁块废铁、铁屑等)。
    本产品起重量一般为5t、10t、16/3.2t、20/5t、32/5T(起重量含电磁吸盘及吊具自重)，跨度为7.5～31.5m，工作级别一般为A6级。
    本机结构由箱型桥架、大车运行机构、小车总成、电磁吸盘及电器系统所组成，桥架结构、大、小车运行机构的特点基本与QD型通用桥式起重机相同，电磁吸盘可具有调磁、保磁功能。

    本机一般为司机室联动台操纵，司机室可闭式或开式。

    QA overhead crane with electromagnet，complying with GB/T14405-2011 standard has circular or rectangle electromagnet and relevant control  system on the basis of QD crane.Therefore either hook or electromagnet  can be selected for lifting tool.
    Wilh a detachable elect romagnet the crane is applicable to work in wo rkshops，warehouses or freight-yards for hoisting and conveying magnetic materials such as steel bands,scrapiron and large steel chunks
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Performance data
    Range of lifting load(including the weight of electromagnet and other relevant lifting equipments)5t,10t,16/3.2t, 20/5t，32/5t.
    Range of span  7.5-31.5m
    Allowed crane classification group    A6
    The machine is composed of boxed bridge，travelling mechanism trolley，electromagnet and electrical system. The basic features of bridge ,travelling mechanism and trolley are similar to those of QD orane .The magnetic capacity of electromagnet is adjustable and special measures have been taken to keep its magnetic force.
    The manipulation type is cab’s control, open or closed.