Vonarx FG250S 250mm 110 Volt Surface Grinder VAFG250S110

The FG250S carries a 50mm dust extraction connector specifically so it can be run coupled to an extractor, and Von Arx show the FG 250 S paired with their S2 dust extractor in the manufacturer’s own documentation. Dry grinding of concrete without extraction produces a very fine airborne dust that travels much further than the coarser debris from a scarifier, so the case for specifying the pair is stronger here, not weaker. 

Health note: Dry cutting, grinding and scarifying of concrete releases respirable crystalline silica. On-tool extraction to an H-class standard is the recognised engineering control, and specifying the machine and the extractor together is what makes that control workable on site. 

The S2 gives 400 m³/h of airflow at 22 kPa vacuum through a conical pre-filter and H13 HEPA main filter, with jet pulse cleaning to keep the filter clear during continuous grinding and Longopac continuous bagging for disposal without opening the unit. For larger areas, prolonged grinding or a second machine running alongside, the S3 provides 600 m³/h from three motors and comes with both 7.5 metre and 10 metre hoses — useful on a grinder, which tends to work further from a fixed extractor position than a scarifier does. 

For wet grinding the extractor is not used, so a fleet carrying the FG250S should hold both options: the water connection for polishing and slurry work, and an S2 or S3 for dry preparation where slurry cannot be tolerated — occupied buildings, upper floors, and anywhere without drainage. 

Full Range Available

A full range of Von Arx surface preparation equipment is stocked — scarifiers and planers, floor grinders, floor scrapers and single and three-phase dust extractors — together with genuine Von Arx cutters, blades, filters and spare parts. Please contact a member of the sales team for further technical advice or to discuss the right specification for your application.