1. According to different speeds, the rated speed of low-speed passenger elevator is less than 1.0m/s; the rated speed of medium-speed elevators is between 1.0m/s and 2.0m/s; the rated speed of high-speed elevators is 2.0m/s Between 4.0m/s and 4.0m/s; the rated speed of the super high-speed elevator is greater than 4.0m/s.
2. According to the presence or absence of a reducer, it is divided into geared elevators and gearless elevators. Geared elevators, namely traction machines, consist of a motor driving a traction sheave and a brake through a reducer, and are often used in low-speed and medium-speed elevators. Gearless elevators, namely traction machines, consist of motors directly connected to traction sheaves and brakes, and are often used in high-speed elevators.
3. The difference of the reduction gearbox, the worm gear reducer is used as the reduction device of ordinary low-speed elevators, and the helical gear or planetary reducer is used as the medium-speed elevator device.
4. The speed limiter is different. The elevator whose rated speed is not more than 0.63m/s adopts the rigid rope speed limiter and is equipped with instantaneous safety gear. Elevators with elevator rated speed greater than 1m/s adopt elastic slippery rope gripping speed limiter and progressive safety gear.

Instantaneous safety gears are often used on elevators with a rated speed of 0.63m/s<V≤1M V speed rated with elevators on used often are gears safety Progressive s.>1.0m/s.

4. Different balance compensation devices. Low-speed and fast elevators use noise-absorbing hemp rope compensation chains; fast elevators use full-plastic balance compensation chains; high-speed elevators use compensation ropes with tensioning devices; when the elevator speed is greater than 3.5m/s, divide the above In addition to the device, a tensioning and anti-jumping device is added.
5. The difference in maintenance and service life

The maintenance is related to the selected elevator technical indicators. The maintenance process of the traction machine, speed limiter, safety gear, etc. is the same. Because the high-speed elevator supplier adopts microcomputer full digital control, it is artificially intelligent, and it is easier to judge the fault and repair. . The service life is only related to the frequency of use, maintenance measures and timely replacement of damaged parts.