Hebei nine cattle hoist Ltd. (Contact: Cui Tel: 0312-8151086, Mobile: 15028211444,13933227358, Website: http: //www.bdjnqz.com, Address: Hebei Province Qingyuan East Lu Zone, E-Mail: jiuniujx @ 163.com, QQ: 1799036274, micro letter: 13933227358) hoist part are: motor, transmission, drum and sprocket. In the mutual position of the motor and the reel can be broadly divided into four different types. (1) The motor axis is perpendicular to the axis of the hoist drum using a worm gear, a large width aspect size, structure bulky, low mechanical efficiency, processing more difficult has been no manufacturers of this type of construction product. (2) The motor axis parallel to the axis of the mandrel electric hoist, the advantage of small size, height and length. The disadvantage is the width of large size packet of manufacturing and assembly complex. Track large turning radius. (3) The motor mounted on the inside of the drum hoist, the advantage of a small length dimension, compact structure. Its main drawback is the motor cooling conditions are poor, poor packet, inspection, installation, maintenance motor inconvenience, power supply unit complex. (4) mounted on the outside of the drum motor hoist, the advantage for the group, and high degree of common, easy to change the lifting height, easy installation and maintenance. The drawback is the length of large size. Contact: Cui Tel: 0312-8151086 Mobile: 15028211444,13933227358 QQ: 1799036274 micro letter: 13933227358 E-Mail: jiuniujx@163.com Website: http: //www.bdjnqz.com Address: Hebei Province Qingyuan East Lu Development