Covington Small Sphere Machine

The Covington Engineering Small Sphere Machine is built for lapidary artists who want precision, consistency, and beautifully polished stone spheres in miniature sizes. Designed to create spheres from 1/4" to 1" in diameter, this compact yet powerful machine transforms rough pre-shaped stones into smooth, perfectly rounded spheres with remarkable accuracy. Powered by dual 1/12 HP motors, the Small Sphere Machine keeps your material moving evenly through a continuous grit bath for efficient grinding and polishing. The innovative downward-slanted cutter cup design automatically distributes grit while directing slurry away from the bearings, helping reduce maintenance and improve long-term performance. The spring-loaded cutting head automatically compensates as material is removed, minimizing constant adjustments during the shaping process. As the rough edges begin to disappear, the cutting angle can be easily adjusted for finer shaping and precision finishing. Whether you're crafting collectible gemstone spheres, restoring vintage marbles, or producing small decorative stone pieces, this machine delivers reliable and repeatable results. Built with durable powder-coated aluminum castings, the Covington Small Sphere Machine is engineered for years of dependable use in home workshops, professional lapidary studios, and educational settings alike. Features & Benefits Creates precision stone spheres from 1/4" to 1" in size Dual 1/12 HP motors provide smooth and consistent operation Automatic grit application system reduces manual work Spring-loaded cutting head minimizes constant adjustments Adjustable cutting angles for progressive shaping and finishing Durable powder-coated aluminum construction Designed to keep grit slurry away from bearings for cleaner operation Excellent for restoring marbles and creating miniature gemstone spheres Included With The Machine One grit pan Instruction manual Product guarantee One pair each of: 1/4" cutter cups 3/8" cutter cups 5/8" cutter cups 7/8" cutter cups Specifications SKU: 382SSM Weight: 26 lbs Dimensions: 25" W x 15" H x 11" D Optional 220V / 50Hz configuration available