Jeff Admin / Saturday, September 17, 2016 / Categories: Cat1 Vacuum Truck System Windust Hydraulics was contacted to design, supply & hose a hydraulic system to run a Vacuum truck. A Linde HPV variable piston pump & Sunfab fixed displacement piston motor is utilized to drive the vacuum pump. To operate the rear door & door locks, a Ronzio aluminum gear pump as an auxiliary unit. Previous Article System Design Next Article Fertiliser Spreader Print 6755 Rate this article: 4.0