CD1、MD1型钢丝绳电动葫芦是一种轻小型起重设备。它可以安装在电动单梁起重机、桥式起重机、门式起重机、悬臂起重机上。稍加改动，还可作卷扬机用。因此，它是工厂、矿山、港口、货场、商店等常用的起重设备之一，是提高劳动效率，改善劳动条件的必备机械。
　　CD1型电动葫芦的起升速度为常速，可以满足一般使用要求；MD1型电动葫芦具有两种起升速度—常速和慢速。慢速工作可以满足精密装卸，砂箱合模，机床检修等精细作业的要求。所以，MD1型电动葫芦的适用范围比CD1型电动葫芦更为广泛。
　　A Brief Introduction
　　Model CD1 、MD1 Wirerope Electric Hoist is a small-sized lifting equipment,which can be mounted on single beam, bridge, gantry and cranes,with slight modificdtion,it can also be used as a winch, It is widely used in factories, mines,harbours,warehouses,cargo storage areas and shops,essential in raising  working efficiency and improving working conditions.
　　Model CD1 Electric Hoist has only one normal speed,which can satisfy normal appiication,Model MD1 Electrc Hoist provides two speed ,normal speeed and low speed .At a low speed, it can do precise loading and unlading, mounding of
　　Sand box ,mainntenace of machine tools, etc. This Model MD1 Electric Hoist is more widely than Modrl CD1.