Controlled by plc.Easy to set and adjust. There are no tools to change as the closing press is adjustable for all the diameters. Especially suitable for binding the notebooks which the cover is bigger than inner sheet. Product specification/models Technical data: Speed: up to 1000 volume/hour Air pressure: 5-8kgf Binding capacity: 1/4" - 1 1/4" Max. Binding length: 360mm(14.2") Air pressure: 5-8 kgf Power: 1ph 220v 50/60hz Net weight:300kg