A4 Size Book Binding Machine, Wireless Auto Hot Melt Glue, Max binding Thickness 40mm, DOBA-BBM40The DOBA BBM40 semi automatic adhesive binding machine is a compact and efficient solution for office and commercial bookbinding needs. Featuring a high speed binding rate of up to 250 brochures per hour, it supports A4 format adhesive binding and handles lamination thicknesses up to 4. 2 cm. Its automatic gumming system ensures smooth glue application, while the built in back milling systemusing a tungsten steel sun milling knifehelps ensure strong,