Construction elevators, also known as construction elevators for buildings, can also be used as outdoor elevators for lifting cages on construction sites. Industrial elevators are mainly used in various types of high-rise and super high-rise buildings in cities, because such building heights are very difficult to complete operations using well shaped frames and gantry frames. It is a commonly used construction machinery for carrying people and goods in buildings, mainly used for the interior and exterior decoration of high-rise buildings, as well as the construction of bridges, chimneys, and other buildings. Due to its unique box structure, construction personnel can ride comfortably and safely. Construction elevators are usually used in conjunction with tower cranes on construction sites. A typical building lift has a weight of 1-10 tons and a running speed of 1-60m/min. There are many types of construction elevators, which can be divided into two types according to their operation mode: without counterweight and with counterweight; According to the control method, it is divided into manual control and automatic control. According to actual needs, frequency conversion devices and PLC control modules can also be added, as well as floor calling devices and leveling devices.