The subway tunnel station was equipped with areducing power application. Subway Tunnel Test Station with Speed Detachorreducer Option. Used at Shenzhen Subway Station to detect subway vans. The work machine was hung with a mechanical arm, and the subway carriage was then made easier for engineers to detect some of the devices inside the subway. The motors with the brakes are mounted on a half-air mechanical arm device, which needs to be mounted and installed with very good quality. Because of the heavy weight of the subway car, the metro section is 22 mX by 3.0 mX by 3.8 m and weighs about 12 tons, and the metro on this line is a six-section group, using two-axis turns and 16 T per axle, i.e. 16 TX2X6 = 192 tons. Every five metres, there is a mechanical arm-lifting mechanism, and each mechanical arm-lifting device requires areducing electric drive. The mechanical arm length of 2.75 m, the mechanical arm weight of 54 Kg,s from 0.5 to 0.8 r/min, and the weight of 100 Kg at the outer end of the mechanical arm, which supports the bearing, have been completed and requires us to make a French connection. The electric voltage is 380 V and is 50°C. Installs a direct strap to the supporting bearing, which is fixed by the output Franc. According to the double-counting, the engineer was selected for the clientGeared motorType kaf87r57-1854-0. 18kw, with 3d drawings and flat drawings。