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Expandable Drums

Angled expansion slots through the heavy rubber rim allow the drum to expand when rotated; thereby locking the belt in place. Belts can be quickly changed by stopping the machine, slipping of the old one and sliding on the new. In use, the resilient drum surface flexes to the gemstones contour to quickly remove grinding flats. The convex shaped drum provides the cutting action necessary to remove scratches. Sold without belt.

Maximum recommended speed is 1800 RPM.

CAUTION: Do not run the drum without belts in place as damage to the rubber rim may result.

CED625--6" x 2 1/2" Expandable Drum
Takes 2 1/2" x 18 15/16" belt. Shipping weight 5 lbs.
$ 69.00
CED830--8" x 3" Expandable Drum
Takes 3" x 25 7/32" belt. Shipping weight 6 lbs. 
$ 79.00

Vise Lock 8" Drum Sander

Sturdy Cast Aluminum Construction & Balanced for Vibration Free Operation

The 3" rim is covered with resilient sponge rubber. It's easy to change sanding cloth. The lock area is threaded for set screw operated clamp. Just loosen to remove the old cloth and retighten to secure the new. Drum comes with 220 grit wet/dry sanding cloth installed.

LLD452--8" x 3" Lever Vise Lock Drum
With set screw for smooth shafts. Specify 1/2", 5/8", 3/4" or 1" bore size. cloth sanding strip can be loosened and retightened by a small lever. A quick, convenient method for changing sanding cloth. Shipping weight 6 lbs.
$ 59.00
LLD458--8" x 3" Lever Vise Lock Drum
With 1" - 14 RHT. Shipping weight 6 lbs.
$ 62.00
SR 3X25--3" x 25 1/2" extra sponge rubber for above drum $ 4.40

SC 3X15--3" x 15' rolls of wet/dry silicon carbide sanding cloth in 100, 220, 400, 600 or 800 grit. Specify grit when ordering. $ 13.25

Aluminum Disc Heads

For Sanding & Buffing

These disc heads are made from our aluminum castings.  Each is machined true and balanced for smooth and vibration free operation.  The face of the head is covered with resilient sponge rubber.  Attach sanding or polishing disc to rubber face with Stick-N-Peel adhesive.
IMPORTANT: When ordering, state left or right hand and thread size.  Now you can special order common threading on almost any head for an additional $10.00 Set-up fee.  Allow an additional week for special orders.

CAH494--6" Head With sponge rubber, with 1/2" - 20 or 5/8" - 18 R.H. bore (specify) $ 35.00

CAH430--8" Head With sponge rubber only & set screw for smooth 1/2", 5/8", 3/4", & 1" shaft. $ 45.00

 

CAH429--8" Head With sponge rubber only & bore sizes 1/2" - 20, 5/8" - 18, 3/4" - 16, 1" - 14 left or right hand thread. Shipping weight 6 lbs.  $ 50.00

CAH440--10" Head With sponge rubber only & set screw for smooth shaft 5/8", 3/4", & 1" $ 60.00

CAH690--8" Head With sponge rubber only 5/8" smooth shaft for 690HCU $ 45.00
CAH691--10" Head With sponge rubber only 5/8" smooth shaft for 691HCU $ 65.00

Most Aluminum Heads Can be Ordered With Common threading For An additional $10.00 Set up Fee.  Please Call or e-mail for Details.

Sanding & Polishing Discs 


Replacement Sponge Rubber and .065 Hard Rubber

 

     4" Square $ 1.95
     6" Square $ 2.50
     8" Square $ 3.45
     10" Square $ 4.40

Disc Adhesive


For sanding & buffing discs. Press it on, it holds. Lift it up, it peels off.

Order # FDA041 -- 5 oz. tube $ 11.50

Sanding & Polishing Belts


   

LAPIDARY EQUIPMENT
ARBORS BEAD MILLS BELT SANDERS BOOKS
CARRIAGE SLAB SAW KITS CARVING & BUFFING KIT COMBO UNITS DELUXE TUMBLERS
DIAMOND BLADES DIAMOND COMPOUNDS DIAMOND DISCS DIAMOND DRILL BITS
DOP STOVES/WAX DRUM SANDER ELECTRIC MOTORS ESTWING TOOLS
EXPANDO DRUM UNITS FLANGES FOREDOM CRAFT KIT GEM DRILLS
GRINDER-POLISHER GRINDING WHEELS GRITS HAMMERS
HORIZONTAL LAPS JEWELRY BUFFERS JEWELRY WIRE BENDER KOOLERANT
MAXI LAPS NEEDLE FILES OPTIVISOR PLIERS & CUTTERS
POLISHING POWDERS PULLEYS ROCIPROLAP ROLLING TUMBLERS
SANDERS / WET-BELT SANDING DISC & BELTS SILVER SOLDER SLAB SAWS
SLAB SAW OIL SPHERE MACHINES SPLASH GUARDS TEMPLATES
TRIM SAWS TUMBLERS VIBRATING LAPS VIBRATING TUMBLERS
VINYL APRONS WIRE SAWS 3M BRISTLE DISC'S

   

GLASS MACHINES

CORK & FELT POLISHER GLASS BEVELERS GLASS ENGRAVER GLASS LATHE
GLASS SAWS & BLADES GLASS SMOOTHER & KITS ROCIPROLAP SANDERS / WET-BELT

Covington® Engineering Corporation
U.S. Toll Free (877)793-6636  Outside U.S. 909-793-6636  Fax 909-793-7641
Email us at sales@covington-engineering.com
715 West Colton Avenue -- P.O. Box 35 -- Redlands, CA 92373