MG型通用门式起重机依据GB/T14406-2011标准所设计、制造；是一种有轨运行的起重机；本产品适用于冶金、矿山、加工制造、造船等各行业的露天仓库、料场、铁路货站、港口码头的货场装卸和搬运物料，并可配用各种专用吊具进行某些特殊作业。
本系列产品起重量一般为5t 10t、16/3.2t、20/5t、32/5t、50/10t，跨度一般为18～35m，工作级别为A3～A6级。
王要特点：
1.本起重机主要由桥架部分、大车运行机构、小车及电器系统所组成。
2.桥架部分由两主梁，四支腿及上下横粱构成．均为箱型焊接板结构，大车运行机构采用立式套装减速器，采用分别驱动形式，根据轮压可采用台车．
3.各机构可用电阻器调速或变频调速，操纵形式一般为闭式司机室操纵，司机室内可设置冷暖风机或空调及对讲机等，本机主要电器设备均安装在单独的电器室内。
4.小车导电采用异型槽或工字钢扁电缆滑车导电，整机供电般采用圆铜滑线或电缆卷筒供电。
5.本机正常使用时，环境温度应在-25°C～40°C，海拔高度不超过2000M，当地最大瞬时风力不超过6级。
MG gantry crane，based on GB/T14406-2011 standard is applicable to conveying materials in open-air warehouses storage yards，mining plants and ports and so on。 A vadety of lifting equipments can be chosen for certain special operation.
Performance data
Range of lifting load 5t 、10t 、16/3.2t、20/5t、32/5t、50/10t
Range of span 18～35m
Allowed crane classification group A3～A6
Main features：
1.The machine is composed of bridge travelling mechanism,trolley and electrical system.
2. The bridge is composed of two main girders,four legs,upper end carriages ,low travelling mechanism，alI of which are box-welded, Travellirg mechanism adopt vertica reducer which is driven respectively With the addition of wheel pressure bogies can be applied.
3. Resistor changeable starer voltage or variable frequency is applied for speed adjustment in each mechanism. In general the manipulation is cIosed cab’s control, If necessary, air conditioner and walkie-talkie can be equipped. All major electrical equipments are installed in separate toom.
4. Cable pulley with Slot-shaped or I-beam track is for electrical conduct of crane trolley and ciroular-coppered slip-line or cable drum is for the whole crane’s.
5. Requirements of normal running environments：The range of ternperatures 25℃～40℃,altitude not more than 2000m and the power maximum of instantaneous wind in the local not more than six.
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