GCL—AK series geared trolleys are designed for the traveling of hooked or combined lifting machine tomove along a monorail．Driven by a hand wheel that is operated by a chain，the trolley can find wide uses inmany places such as factories，mines，docks and  storehouses for equipment installation，lifting and transporting goods．
  手链单轨小车与手拉葫芦、手扳葫芦或其它起重工具配套使用，以手链驱动，沿单轨运行，广泛适用于工厂、矿山、码头、船坞、仓库和机房等地安装设备、吊运货物、尤其适用于无电源地点的设备维修工作。