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3 machines: specifications and included equipment
Check what each machine includes before you compare prices. Delivery, tax and items sold separately can add to the total.
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| Machine | Covington 6-inch Combination6CU · diamond package | Covington 8-inch Deluxe Combination8CU · diamond package | Barranca GP6 Diamond8300048 · belt package |
|---|---|---|---|
| Machine and package | |||
| Equipment type | Combination machine | Combination machine | Cabbing machine |
| Listed US price | $1,595 | $2,895 | No listed price |
| Listing date | 24 September 2026 | 24 September 2026 | 24 September 2026 |
| Availability | Listed for order; confirm delivery date with Covington | Four-month lead time in the September 2026 listing | Ask Barranca for price and availability |
| Equipment to add or confirm | Water supply and waste-water disposal | Freight, water supply and optional cabinet stand | Ask the maker. |
| Water supply | Valves and drains included; supply gravity or mains water separately (undated manual) | Valves accept gravity or pressurised water; supply water separately | Pump, hose and three control valves included |
| Trim saw | 6 in diamond blade; slab vise | 10 in diamond blade; separate 1/3 hp saw motor | Not included |
| Grinding and polishing | |||
| Wheel or disc diameter | 6″ | 8″ | 6″ |
| Wheel width | 1½ in grinding wheels | 1½ in grinding wheels | 1½ in |
| Bore or arbor diameter | Ask the maker. | Ask the maker. | 5/8 in (January 2022 manual) |
| Grinding | 100 and 220 grit metal-bond diamond wheels | 100 and 220 grit metal-bond diamond wheels | 80 and 180 grit metal-bond diamond wheels (listing) |
| Sanding | 6 in drum; five 400 grit carbide belts and one 1,200 grit diamond belt | 8 in drum with 400 grit carbide cloth; 1,200 grit diamond disc | 6 × 1½ in drum; 400, 600, 1,200 and 3,000 grit diamond belts |
| Polishing | 6 in leather disc; 50,000 mesh diamond compound and extender | 8 in leather disc; 50,000 mesh diamond compound and extender | 6 in hub; leather disc and Polytex pads; three diamond pastes |
| Power and bench space | |||
| Motor | 1/3 hp | Two 1/3 hp motors: saw and grinder | 1/3 hp |
| Speed | Variable, 800–1,725 rpm (listing) | Eight settings, 1,100–1,725 rpm (2013 manual) | 1,725 rpm |
| Voltage | 110 V (undated manual); 220 V / 50 Hz option costs $50 more | Ask Covington for the domestic voltage; international version costs $100 more | 110 V / 60 Hz (January 2022 manual) |
| Machine weight | Ask the maker. | Ask the maker. | Ask the maker. |
| Dimensions | 25 × 25 × 14 in (undated manual); confirm with Covington | Not published in the listing; ask Covington for bench dimensions | Not published in the listing; ask Barranca for bench dimensions |
| Package details and sources | |||
| Included equipment | See what's included → | See what's included → | See what's included → |
| Sources | Covington 6-inch Combination product page ↗ | Covington 8-inch Deluxe Combination product page ↗ | Barranca GP6 Diamond product page ↗ |
Check each machine against the buying checklist before you buy.