Milling motor with hollow shaft Bornemann 440 Easily retrofits your milling machine to suction milling of foamed plastics including styrofoam and polyurethane. Specially designed for suction milling - ideally suited for joint application with hollow cutters and suction machines 4.0 kW, 400 V, 50 Hz Adjustable speed up to 6,000min-1 (using an external frequency converter) Extra high-torque milling spindle Robust, durable unit Customised adapter boards for installation with your machine can be delivered at short notice