AC elevator passenger elevator Category: AC induction motor as the driving force of the elevator. According dragging exchange can be divided into single-speed, two-speed AC, AC voltage regulator control, AC transformer frequency control. DC Lift: DC motor as the driving force of the elevator. Such elevator rated speed is generally 2.00m / s or more. Hydraulic lift: general use electric pumps driven passenger elevator manufacturer liquid flow from the plunger lift the car elevator. Rack and pinion lift: rail processed into rack gear meshing with the rack mounted on the car, the motor drive gear rotates the car and down the elevator. Screw Elevator: The elevator top plunger straight processed into rectangular threads, then with a thrust bearing nut is attached to the cylinder top, then drive nut is rotated by the motor via a reducer (or belt), so that the screw jacking cage elevator up or down. Linear motor driven elevator, its power source is a linear motor. Early elevator passenger elevator advent of warranty, have used the steam engine, the internal combustion engine as the power to directly drive the elevator, now largely extinct. Motor through reducer passenger elevator safety has been a top concern, when the operation of the elevator which can seal the floor of the lift exports reached safety purposes. Best when the elevator car entrance closed, when people take the elevator to get to protect the safety of passengers elevators, passenger elevator sophisticated vector inverter control technology FM regulator passenger elevator construction of the control system after the precise calculation of outputs speed variation in the elevator running perfectly reflected, take the elevator to eliminate the discomfort, the elevator starting, running, stopping when the speed change in the passenger unknowingly occur. Passenger elevator installation, Noah Witt elevator, Zouping passenger elevator is provided by the Texas Noah Witt Elevator Company. Texas Noah Witt Elevator Co. (www.dznywt.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!