Covington 4-Station Expanding Drum Unit

The Four Station Expandable Drum Unit is a versatile machine that allows the user to move through grinding stages without changing the wheels. The angled expansion slots through the rubber rim of the expandable drum allow it to expand when rotated, thereby locking the belt in place. The drum surface flexes to the contours of the gemstone quickly removing grinding flats and scratches. Accessories include four (4) 3" x 8" silicon carbide sanding belts (1-each 100g, 220g, 400g, & 600g), belt guard, instructions, and product guarantee. The hoods are easy to remove for cleaning or wheel changes. The water valve takes 1/4" OD plastic tubing for gravity water flow or 1/4" copper tubing for pressure systems. Spray nozzles under the hood wet the entire wheel face. This unit ships mounted on a rustproof aluminum-topped Lam-I-Cushion base.

Features

• Four 8" x 3" Expandable Drums
• Heavy Duty Ball Bearings, Neoprene Sealed and Greased for Life
• Powder Coated Cast Aluminum Arbor, Pans and Hoods with Water Valves and Drain Plugs
• Speed Control Allows Gradual Speed Changes from 800rpm to 1725rpm
• 1/2hp, High Torque Motor