PBW-580 double wire punching and the binding inline machine is recognized as a stable, high-effective, easy-operation used for the majority of notebooks, sketchbooks, documents, desk and wall calendars, and other productions. It has multiple layers in the punching station and reliable jaws to transport papers. The punching pins are made of harden alloy steel and coated in TiN. It could paper separate, punching, close, and collect all functions in one machine. And with the optional calendar hanger device, hardcover manual punch to improve the efficiency of customers.