There are many types of vertical gear reducer, if the type of gear transmission can be divided into: worm reducer, cylindrical gear reducer, bevel gear reducer, worm - industrial gearbox types. If the transmission series can be divided into: two-stage reducer and single-stage reducer and multi-stage reducer. According to the gear arrangement can be divided into points: coaxial, split and expand the three. According to the installation can be divided into: horizontal and vertical. According to the casting type can be divided into cast iron and aluminum alloy two.