This machine is a heavy-duty roller type automatic pay off rack. When installing the wire reel, simply place the reel between two rollers. The pay off machine can move over like a handcart and lift the wire spool up through a lifting motor, without the need for manual handling of the wire spool, greatly simplifying the process of installing and replacing wires. The rotation of the spool is driven by a servo motor, and the speed of the pay off frame can be automatically adjusted according to the position of the pulley. The higher the pulley position, the faster the pay off speed. This machine has forward and reverse switching function, so there is no need to consider the front and back of the spool when installing the spool, and the spool installation is simple.