Covington Engineering · Sphere machine
Three-Headed Sphere Machine
Production cutting and polishing of large stone spheres

Primary workProduction cutting and polishing of large stone spheres
Working size2.5- to 10-inch spheres
Speed93 rpm
Sourced specifications
What to know before choosing.
Confirm current configuration, price, shipping, and included components with the manufacturer before purchasing.
- Working size
- 2.5- to 10-inch spheres
- Power
- Three 1/6 hp gear motors; 110 V standard; 220 V 50 Hz optional
- Speed
- 93 rpm
- Water / coolant
- Automatic grit and slurry application
- Footprint
- Dimensions not stated; 255 lb shipping weight
- Included
- Grit pans and a selected set of cutter cups
- Parts & support
- Official instructions, replacement cups, parts, and factory support
Usable setup—not just machine price
Extras to verify before buying.
These are workflow categories, not an assumption that every item is missing. Compare them with the manufacturer’s current included-equipment list.
- Correct cutter-cup sizes
- Grinding grit or diamond-tool sequence
- Polishing cups, pads, and compound
- Slurry collection and preform tooling