Freight elevators used frequency modulation voltage speed Regulation (WVF) technology, elevator movement, brakes, runs very smooth, suitable for all kinds of cargo transportation venues, vector control FM claimed the speed control than conventional AC dual speed control than 30%. Laden elevator car frame, the car is fully considered at the end of loading of various features, large loading, freight elevators practicality is more prominent. Today 7000KG goods ladder safely running the 10,000 hours or more. 10000KG freight elevator is currently in preparation.