Cable tray roll forming equipment with 20 roller stations.the steel plate is preliminarily pressed to the desired shape, and then the roller locking device is locked to start the equipment for production. When changing the mold, the top roller is raised, the mold is sleeved on the roll, and then the roll is lowered, adjusting the distance between the two rolls to the appropriate distance needed, locking the roller locking device can be. The utility model has the advantages of reasonable design, simple structure, easy manufacture and convenient replacement of moulds. cable tray production line