Arbe KMT-25 Variable Speed 175mm Super Mini Mag Tumbler-110V

The Arbe KMT-25 Variable Speed Super Mini Magnetic Tumbler is a professional-grade, medium-capacity magnetic tumbler designed for the small shop and built for industrial use. Operating on 110V, it features a 175mm (7") diameter faceted bowl with a capacity of up to 50 rings. A heavy-duty motor delivers robust power, while the faceted bowl design maximizes rotational action for consistent, thorough polishing results.

Magnetic tumbling has revolutionized jewelry polishing by cutting hours of costly hand labor from the finishing process. Using thousands of tiny stainless steel magnetic pins with a polishing soap and water solution, the KMT-25 burnishes surfaces to a bright, work-hardened shine — reaching the undersides of rings, undercuts, channels, fine filigree, and other hard-to-access areas. Gold pieces can be polished in as little as 30 minutes; platinum in approximately 45 minutes. Because magnetic tumbling is a burnishing process — not an abrasive one — there is no metal loss.

The variable speed control sets the KMT-25 apart from single-speed units. Precise speed adjustment allows the pins to rotate around your pieces while the pieces move gently through the bowl, preventing unwanted contact that can cause dents and scratches. Single-speed units run at full power continuously, increasing the risk of piece-to-piece damage.

Features

• Variable speed control for precise, job-specific speed settings
• Heavy-duty motor built for industrial use and small shop environments
• Faceted bowl design maximizes rotational action
• Polishes hard-to-reach areas: undercuts, channels, filigree, ring undersides
• Burnishing process — no abrasion, no metal loss
• Suitable for gold (approx. 30 min) and platinum (approx. 45 min) finishing cycles
• Compact footprint suitable for bench-top use
• Includes a full load of stainless steel magnetic polishing pins
• Includes one 2 oz bottle of Otto MF610 magnetic tumbler concentrated solution (makes 2 quarts)

Specifications

What's Included

• Arbe KMT-25 Variable Speed Magnetic Tumbler (110V)
• Full load of 0.50mm stainless steel magnetic polishing pins
• 2 oz bottle of Otto MF610 magnetic tumbler concentrated solution (makes 2 quarts)

Notes

Ring capacity is the standard industry metric for measuring tumbler capacity — the KMT-25 is not limited to rings and can be used to polish a variety of small jewelry pieces and components. Magnetic tumblers are not an abrasive system; they burnish surfaces to a bright finish without removing metal.