Cabbing Machines Lapidary Equipment
Dad's Rock Shop Cabbing Equipment
Grind, Sand and Polish Machinery
Toll Free Order Line 800-844-3237

Home Products & Services Equipment Tools & Supplies
Ameritool
Universal Heavy Duty Grinder and Polishing Machine
Available in 6" and 8" Models

Click Here For A Better Look
The Universal Heavy Duty Lapidary Grinding and Polishing Machine is a complete Heavy Duty Grinding and Polishing Lapidary Machine. Designed for production use yet is affordable for the hobbyist. The 4 step finishing process makes it easy to finish a wide variety of gem material, both natural and synthetic, including quartz, agate, jasper, tourmaline, corundum and opal.
Because the Universal is a horizontal lap machine you can grind flats, make free form cabochons, rework quartz crystals, do intarsia and detailed inlay work. The Universal is excellent for glass work.
The clean, quiet Universal HD can be used in the house or in a recreational vehicle - Clean up is easy!
Each machine includes:
  • Variable speed ball bearing DC motor with 115 VAC Converter and coolant reservoir with splash guard.
  • 180 mesh metal bond diamond disc, hydraulically pressed to a backing plate.
  • 325 mesh diamond sanding disc.
  • 600 mesh diamond sanding disc.
  • 1200 mesh diamond sanding disc.
  • White polish pad with 14,000 mesh diamond compound.
  • 4 disc backing plates.
  • Complete instructions
Specifications:
Motor: 6" & 8" Machine - 1/4 HP equivalent Ball Bearing DC with 115 VAC Converter.
Drive: Direct on 2" flange
Dimensions:
6" Universal: 12" x 12" x 7"
8" Universal: 12" x 12" x 7"
Weight:
6" Universal: 16 lb. including accessories.
8" Universal: 18 lb. including accessories.
6" Universal HD with Accessories
Regular price $529.00
$475.00
8" Universal HD with Accessories
Regular price $629.00
$565.00

 Smoothing Disc Kits - See our Diamond Disc Page



Covington
8" Grinder-Polisher With Expando Drum
Covington 8 Grinder-Polisher With 8 Expando DrumLarger Image
Shipped Ground Freight - Call or e-mail for a freight quote
Model #752
8" Grinder-Polisher With 8" Expando Drum
Silicon Carbide Unit (includes 1/2" bore Vari-drive pulley)

Belts can be quickly changed--just slip off the old and slide on the new!

Grinder-Polisher Features

  • Heavy duty ball bearings, neoprene sealed and greased for life
  • Rust proof aluminum castings
  • Adjustable cab and wheel rest
  • Speed control with 8 RPM changes
  • 1/3 HP, 110V, heavy duty Motor
Expando drum: angled expansion slots through rubber rim allow drum to expand when rotated, thereby locking belt in place. Drum surface flexes to gemstone contour to quickly remove grinding flats and belt's cutting action quickly removes scratches. Hood removes easily for cleaning or wheel change. Water valve takes 1/4" O.D. plastic tube for gravity water flow or 1/4" copper tube for pressure system. Spray nozzles under hood wet entire wheel face. Base-mounted grinder-polisher comes assembled with 2 8" x 1 1/2" silicon carbide grinding wheels (100 & 220 grit), 8" expando drum with 400 grit belt, and aluminum polishing buff. Sample kit includes polish powder with brush and dop sticks with wax. 
Units comes assembled with operating instructions and guarantee. Size 36"L x 22"W x 18"H (Motor shipped separately).
Mod. #752

$950.00
Model #754
The 754 unit has the same basic features as the 752 with silicon carbide replaced by diamond abrasives. Unit comes with 2 8" x 1 1/2" metal bond diamond grinding wheels (100 & 220 grit), 2 3" x 25 7/32" diamond cloth belts (220 mesh & 1200 mesh) and, for polishing on the leather disc a 2 gram syringe of 50,000 mesh diamond compound with a 2 dram bottle of extender fluid (thinner). Grinder-Polisher comes complete with sample kit, book about using diamond abrasives, instructions and guarantee (Motor shipped separately).
Mod. #754

$1350.00


 
Barranca Diamond Cab Combo Workshop
Shown with optional vise assembly. Please allow apx. 6 weeks for shipment.
Barranca 6 Inch Diamond Cab Combo Workshop
This very popular six inch combination saw/grinder unit makes it ideal for those who want the finest in a compact, precision gem making unit. The highest engineering standards have been incorporated into this combination polisher/trim saw unit. The independently operated operated fingertip control valves located on top of the hood, meter the water to deflectors that spread water the entire width of the grinding wheels and expanding drum. Plastic tubing with fittings, concealed under the hood, connects the independent control valves to a brass on-off water valve located in the rear of the unit. A cast aluminum base supports the unit. Adjustable tool rests are included. The unit has 5/8" rubber mounted bearings, sealed and lubricated for life. The Cab Workshop comes complete 80 & 200 grit diamond wheels, 6" x 1-1/2" rubber expandable drum, diamond belts (400, 600, 1200, & 3000), 6" convex polishing hub, 6" leather and Poly-Tex polishing pads, 6" x .025 x 5/8" BD-301 or 6" x .020 x 5/8" 303 Pro continuous rim blade, 1/3 HP motor, adjustable stainless steel motor mount, Micromite diamond compound (8,000, 14,000, & 50,000 mesh), 8 oz. bottle of Tool Cool, 3M feathering disc adhesive, base board, magnetic base lamp, GFCI switch and submersible pump.
$1180.00
Regular price
$1310.00

 

Optional Cab Combo Vise Assembly 
$63.00


 
 

Barranca Diamond GP-6Barranca  Diamond GP-6
Two wheel options available
Please allow apx. 6 weeks for shipment.
Larger Image


GP-6
Diamond Wheel Option
Includes:
  • Two 6" x 1-1/2" diamond wheels 80 & 200 grit)
  • One 6" x 1-1/2" rubber expandable drum
  • 6" convex polishing hub
  • 400, 600, 1200 & 3000 mesh diamond belts
  • Three Poly Tex polishing pads
  • 6" Leather polishing disc
  • 3M™ feathering disc adhesive
  • Diamond paste compound syringes (8,000, 14,000, & 50, 000 mesh )
  • Submersible water pump & hose
  • Three stainless steel water control valves
  • Base board
  • Magnetic base lamp
  • One bottle Tool-Cool (8 fluid ounces)
  • Power Pack with 1/3 HP motor & mount
$980.00 (Reg. price $1090.00)
GP-6
Carbide Wheel Option
Includes:
  • Two 6" x 1" carbide wheels (100 & 200 grit)
  • One 6" x 1-1/2" rubber expandable drum
  • 400, 600, 1200 & 3000 mesh diamond belts.
  • One Poly Tex polishing pad
  • One 6” convex polishing hub
  • Diamond paste compound syringes (8,000, 14,000, & 50,000 mesh )
  • T-bar wheel dresser
  • Submersible water pump & hose
  • Three stainless steel water control valves
  • One bottle Tool-Cool (8 fluid ounces)
  • Power Pack with 1/3 HP motor & mount
$890.00 (Reg. price $985.00)

GP-8 Diamond Cab Grinder/Sander/Polisher
GP-8 Super Cab Grinder/Sander/Polisher
Please allow apx. 6 weeks for shipment.

  • 1725 RPM 1/2 HP 115V Motor
  • Stainless steel hood and body
  • One inch stainless steel shaft
  • Four stainless steel water control valves
  • Motor mount, drive belt & baseboard
  • GFCI
  • Submersible water pump and hose
  • Reservoir drain pipe
  • Magnetic base lamp
  • Two 8" x 3" rubber expandable drums
  • Two 8" polishing hubs
  • 80 & 200 grit 8" x 1-1/2" brazed metal-bond diamond wheels
  • 400, 600, 1200 & 3000 mesh resin-bond diamond belts
  • Three Poly Tex polishing pads
  • 8" leather polishing disc
  • Feathering disc adhesive
  • Micromite diamond compound kit (8,000, 14,000 & 50,000 mesh)
Sale Price $2675.00
(list price $2995.00)
Call To Order
$65.00 delivery fee to residential addresses may apply. Crating charge $150.00. Please allow apx. 6 weeks for shipment.

Credit Card Logos

Contact Us    Policies

Dad's Rock Shop
P.O. Box 6124, Mohave Valley, AZ 86446 - USA
7472 Mtn. View Road, Mohave Valley, AZ 86440 - USA
Monday - Friday  9:00 AM - 5:00 PM Arizona
Toll Free Order Line 1-800-844-3237
Information (928) 788-2513 * Fax (775) 924-7889

Products and prices subject to change without notice. The above prices do not include shipping charges.
AZ. residents subject to 5.85% sales tax.

Copyright (c) Dad's Rock Shop - All Rights Reserved