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     CD1型電動葫蘆的起升速度為常速，可以滿足一般使用要求；MD1型電動葫蘆具有兩種起升速度——常速和慢速。慢速工作時(shí)，可以滿足精密裝卸，砂箱合模，機(jī)床檢修等精細(xì)作業(yè)的要求。所以，MD1型電動葫蘆的使用范圍比CD1型電動葫蘆更為廣泛。

     為滿足較大噸位起重作業(yè)的需要，公司生產(chǎn)HC型大噸位。

     Model CD1，MD1 Wirerope Electric Hoist is a small-sized lifting equipment，which can be mounted on singlebeam，bridge，gantry and arm cranes．With slight modification，it can also be used as a winch．It is widely used in factories，mines，harbours，warehouses，cargo storage areas and shops，es sential in raising working efficiency and improving working conditions．

     Model CDl Electric Hoist has only one normal speed，which can satisfy normal application．Model MD1 Electric Hoist provides two speeds：normal speed and low speed．At a low speed，it can do precise loading and unloading，mounding of sand box，maintenance of machine tools，etc．Thus，model MDI Electric Hoist is more widely than Model CD1．

To meet the needs of lifting heavier cargo，our factory also manufactures HC20t electric hoist．