... drives it. Japan YASKAWA frequency converter for the speed regulation system. Screw-type metering feed, water cooling pelletizing. The barrels ... , SKF bearings are used. 2) The immersion oil lubrication system is also be used. We set up the low oil ... Frequency Control:Janpanese YASKAWA frequency converter for the speed regulation system. c.vacuum system1.vacuum pump,AC motor2.Vacuum chamber,vacuum ...