1. Work is divided by type of power: can be divided into DC and AC motors. 1.1 DC motor according to the structure and working principle can be divided into: brushless DC motors and brush DC motors. 1.1.1 Brush DC motor can be divided into: permanent magnet DC motors and electromagnetic DC motor. 1.1.1.1 electromagnetic DC motor division: series DC motors, DC motors and Reed, he excited DC motor and re-excited DC motors. 1.1.1.2 permanent magnet DC motor division: rare earth permanent magnet DC motor, ferrite permanent magnet DC motor and aluminum-nickel-cobalt permanent magnet DC motor. 1.2 AC motor which can be divided: single-phase motors and three-phase motors. 2. According to the structure and working principle of division: can be divided into DC motors, induction motors, synchronous motors. 2.1 synchronous motor can be divided into: a permanent magnet synchronous motor, synchronous reluctance motors and hysteresis synchronous motor. 2.2 asynchronous motors can be divided into: AC induction motor and the motor commutator. 2.2.1 induction motor can be divided: three-phase asynchronous motors, single-phase asynchronous motors and shaded pole induction motors. 2.2.2 AC commutator motors can be divided into: single-phase series motor, AC and DC motors and repulsion motors. 3. Press Start and Run Division: capacitor start single-phase induction motor, capacitor run single phase induction motor, capacitor start single-phase induction motor running and split-phase single-phase induction motor. First, the metallurgical industry: iron and steel metallurgy industry sub-sector and non-ferrous metal smelting and production industry a steel industry: air compressor power is mainly performed by the gas meter, 2 meter sweep, nonferrous metal smelting and manufacturing: air compressor is mainly execution for power, gas meter, spraying two power industry main purposes: instrument with compressed air system, ash handling system with compressed air, compressed air plant hybrid systems, compressed air treatment systems, water treatment to include in boiler feed water treatment and industrial wastewater treatment systems, hydropower station will have the power to use compressed air system equipment. Third, a light industry, food and beverage: no contact points, indirect contact and direct contact with the gas. Do not touch: mainly in power actuator air compressor repair, such as the control cylinder indirect contact, such as: mainly by oil-free reciprocating compressor air compressor, such as cans, bottles of cleaning direct contact: such as raw material mixing, fermentation and so on, demanding oil content, cutting the need for compressed air sterilization deodorant treatment 2, the pharmaceutical industry: Do not contact the main driving force execution and instrument air, direct contact with the gas consumption due to large and stable gas, colleague request high air quality, the general election centrifugal, if gas is not great, the choice of oil-free screw. 3, the cigarette industry: Compressed air is in addition to the main power source for electric air compressor Cottle, generally used in the injection wire machine equipment, cigarette volumes, then Xianyang compressor and packaging equipment, but also with the meter , dynamic execution, equipment cleaning. 4, rubber and plastic products: mainly used for dynamic execution, gas meter, plastic is also used for blow molding processes. Fourth, the chemical fiber industry main purposes: the cotton industry as the main power source to use clean compressed air, for oil content is relatively high; chemical fiber industry is mainly gas meter and gas suction gun silk dyeing mainly power and instrument air. Fifth, the water plant is mainly used for dynamic execution. Compressor Brand | Qin Wei pneumatic air compressor enterprises (certified) | by Xianyang compressor Compressor Co., Ltd. Qin Wei. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) is Xianyang, compression, separation equipment leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qin Wei Air leadership with the staff warmly welcome all inquiries negotiations to create Qin Wei Air a better future.