FEDA FD-20T Heavy Duty Rolling Machinery High Speed Screw Making Machine. This automatic feeding machine features adjustable brackets and variable speed (28/35/45/56rpm). It boasts a 54mm die hole, 200KN max rolling pressure, and is easy to operate. Perfect for producing screws with diameters from 10-70mm and thread pitches of 1.0-6mm. CE & ISO9001 certified.