Conventional configuration: 1) Ground control or room control. 2) Single or double speed of steel wire rope hoist. 3) Using single speed cage motor or wound rotor motor for traveling or traversing crane. 4) Driver's room is opened or closed types. 5) Working ambient temperature: -20°C +45°C. It's not suitable for lifting blazing & melting metal or toxicant as well as explosion-proof or insulating working conditions. Other configuration user can choose: 1) Single or double speed of chain hoists,other kinds of hoists. 2) Fixing wireless remote control to realize the remote control. 3) Using transducer for traveling or traversing crane to realize step speed or stepless speed change. 4) It should be explained when using in the open-air environment,in order to fix windproof & rainproof devices. 5) The other feasible configuration user propose. Features: 1) Reasonable structure 2) Favorable performance 3) Smooth starting and stopping 4) Safe and reliable traveling 5) Low noise, commodious cabin and good view 6) Convenient maintenance, excellent exchangeability for parts and components 7) Saves electricity Specifications: 1) Load: 3-50MT. 2) Span: 6.5-35.5m. 3) Service duty: a) A3: used in places of mild service, such as workshop and warehouse. b) A4: used in places of Medium service such as assembly and depot. The technique parameter is provided on our web site just for reference, and the exact parameter of our product according to the contract.