The freight elevator adopts variable frequency asynchronous traction machine technology and multi-microcomputer modular control system, and the efficient and reliable driving mode makes it easy to carry under various working conditions, free of strain, and can meet all kinds of cargo purposes and is suitable for different The building structure makes more load-bearing and more capable, creating a new concept of cargo transportation, which is the choice of factories, production lines, warehouses, buildings, shopping malls, shopping centers and other large freight logistics places.