1/4 HP Motor Operated Wire-Ring Closing Machine is manufactured by Polygraf General Industries. Polygraf General Industries also manufactures diverse types of book and calendar spirals, wire ring binding - punching die sets, wire ring binding - punching machine, spiral binding, and binding wires. 1/4 HP Motor Operated Wire-Ring Closing Machine is required to complete the wire-ring binding sequence after the wire element is manually inserted in the punched sheets. The closing cycle of this is Wire-Ring Closing Machine is pedal operated. The closing bar of the machine is adjustable over the whole range of wire ring diameters i.E.1/4 inch to 1 inch.