RiPPERT vacuum system with fan frequency controlled, filter 122 RX 342 for volume flow approx. 106,000 m3/h, control cabinet incl. Danfoss frequency converter and air return, fans: RIPPERT RV63-450-575B50 with year of construction 2012 (volume current approx. 12,000 m3/hr, engine approx. 18,5 KW), RIPPErt RV45-355/643A0 with year 2005 (volume flow approx .9,500 m3/hour, engine ca. 22 KW) RIPPE RT HL80-630/1105-A with Year of manufacture 1979 (volume current approx. 30.000 m3/h, engine approx. 45 KW), RIPPERT RV63-400/530A0 with year of manufacture 2007 (volume flow approx. 11.800 m3/hr, motor approx. 18.5 KW, RIPPErt chip transport fan, filter with extinguisher access, ZS 7.5 rotary lock, air return winter/summer, filter height (without base) approx. 752 cm, filter width approx. 305 cm, filters length approx. 960 cm, total filter area approx. 888 m2, Volume flow approx. 106.000 m3/h, control cabinet with Danfoss frequency converter, Siemens Simatic S7 control and touch panel, suction pipes various diameters and length incl. bows