Description Overview Werner & Pfleiderer twin screw extruder Model: ZSK40F 32.5E Year: 1989 Co-rotating design Specifications Length to diameter ratio: 42:1 Maximum screw speed: 500 rpm Electrical heated barrel Water cooled barrel Dual vented barrel 50 hp DC motor with SCR controller Controls and Feeders Unitized mounted control panel with Barber Coleman AT Plus controllers Includes two Brabender gravimetric feeders with controls