instructions the product description Conventional aircraft configuration: fuck or room, single or double speed wire rope hoist speed, big, the car can be used or single speed squirrel-cage motor winding motor. The driver chamber type and closed two separately. Level of job: A3 and A4, working environment temperature - 200 - c ~ + 400 c. This version is not recommended for lifting overheated, molten metal, or toxic dangerous goods; There is a requirement for explosion-proof, insulated should not be used for the working environment. For the user to choose other configuration: 1, single and double speed chain hoist, or other types of all kinds of bottle gourd; 2, equipped with wireless remote control, remote control can be realized. 3, big, the car USES of frequency converter to realize level and stepless speed regulation; 4, use the outdoor environment should be explained, in order to be waterproof, windproof processing; 5, other feasible configuration plan proposed by the user.