1. The classification of the lift
According to the main parameters of the lift and capsules, shaft, room type and size of regulation, the elevator type classification is as follows:
(1) 1 class, designed for the transport of passenger elevator.
(2) 2 class, mainly for the transport of passengers, at the same time can also be designed to transport the goods elevator.
(3) 3 classes, for the transport of bed (including patients) and medical equipment and design of the elevator.
(4) four types, mainly designed for transport of goods generally by people with the elevator.
(5) five types, service lift.
6) 6 class, in order to adapt to specially design of elevator traffic flow and the frequent use, such as speed of 2.5 meters per second and higher speed of the elevator.
 
2. The main parameters of the lift
The main parameters of the elevator including rated load and rated speed.
Refers to the normal operation of elevator
(1) the rated load capacity, without the permission of the unit is kg. The elevator mainly has the following kinds of the rated load, 320 kg, 400 kg, 450 kg, 600 kg, 630 kg, 750 kg, 800 kg, 1000 kg, 1050 kg, 1150 kg, 1275 kg, 1350 kg, 1600 kg, 1800 kg, 2000 kg, 2500 kg.
(2) refers to the rated speed elevator design prescribed capsules running speed, the unit is meters per second. The elevator the rated speed of common has the following kinds:
0.4 meters per second;
0.5 meters, 0.63 meters, 0.75 meters per second per second per second.
1.0 meters per second;
1.5 meters per second, 1.6 meters per second;
1.75 meters per second;
2.0 meters per second;
2.5 meters per second;
3.0 meters per second;
3.5 meters per second;
4.0 meters per second;
5.0 meters per second;
6.0 meters per second.
Speed of 0.5 to 6. O meters per second is often used in electric elevator, speed of 0.4 to 1. O meters per second is often used in hydraulic elevator.
 
3. The basic structure of the lift
(1) from the space placeholder, general by the elevator machine room, shaft, capsules, layers of stand four parts.
(2) from the system function, elevators are usually made of traction system, guiding system, capsules, door system, weight balance system, drive system, control system, safety protection system such as the eight system structure.
 
4. The elevator installation project is a branch of engineering construction and installation engineering, it is driven by electric traction type or forced the elevator installation, hydraulic elevators and escalators, automatic sidewalks installation of three sub branch of engineering.