This vacuum pump is a side channel blower type suitable for the vacuum hold down system on a full sheet CNC router. Unfortunately, the CNC machine proved inadequate in other respects and was replaced shortly afterwards and then broken for spares.As a result of this, the pump has done some work but has never given a moments problem and tests out perfectly. This pump is rated at 60Hz but works perfectly well on 50Hz. This and an identical pump have been used this way for many years with no problems. There is a slight reduction in speed and therefore flow rate which shows in the specification. I suspect that the manufacturers are unfamiliar with the concept of a world outside Texas.
This pump was specified for use and supplied with a full vacuum bed on a 10 x 5 CNC Router and with normal single sheet operation was more than on top of the job. A similar pump is still being used on an 8 x 4machine and really gets a grip. The pump is ready to use and comes complete with air filter and housing. It also has a vacuum relief valve which would be necessary for a new installation.
Side Channel Blowers can run continuously when fitted with pressure or vacuum relief valves to protect the pump making them a robust unit that can move large volumes of air. The item "Republic Vacuum Pump HRB-900" is in sale since Friday, September 6, 2019. This item is in the category "Business, Office & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Centrifugal Pumps". The seller is "af3124" and is located in Stoke-on-Trent. This item can't be shipped, the buyer must pick up the item.