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How do you use a barrelling unit?

Items placed within a barrelling unit are repeatedly hit with what ever medium they are surrounded with. Most jewellers use Mixed Steel Shot with a cleaning solution such as Barrelbrite. This works by causing any surface discolouration or oxides to be gently worn away, leaving behind clean metal underneath.

On rough castings, you can use Ceramic Pyramid Chips and Cutting Powder. These remove casting marks. Upon receipt of a new unit, if the motor can be heard but the barrels are not turning, then the rubber belt has slipped off the drive shaft in transit. To rectify this make sure the unit is unplugged, unscrew the back panel and reposition the belt on the motor wheel.