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Vac-U-Lok offers Automatic Coolant Return Systems for vacuum workholding. The systems are available in four models that can collect and drain 10, 25, 55 or 100 gallons of coolant per hour without losing vacuum during machining operations. The units feature a dual-stage coolant filtering system that separates debris as well as dual vacuum gage systems for viewing vacuum levels during operation.
Options include dual-stage automatic draining systems and coolant disbursement pumping units. In addition, independent mounting stands are available for units not mounted directly on a machine tool. According to the company, the systems can eliminate time-consuming drainage of vacuum pump tanks and reduce repairs and/or downtime for oil changes due to coolant sucking into vacuum pumps. In addition, the units work with virtually any type of machine tool, the company says.