Gantry crane is a variant of Bridge crane. In the port, mainly for outdoor yard, yard goods, bulk cargo loading and unloading operations. Its metal structure shaped like a door frame, bearing girder installed under two feet directly in the ground walking on the tracks, you can have both ends of the main beam overhanging cantilever.
2015年11月20日星期五
rare earth permanent magnet
electric wire rope hoists, everybody knows it's security is much better in comparison with chain hoists. This principle is inseparable from its structure, of which one of the wire rope hoist have its unique characteristics.
Reducer: using three fixed helical gear rotating mechanism, grabbing cranethe gear and the gear shaft of heat-treated alloy steel box
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