Foredom RT101 Rotary Tumbler Kit

A rotary tumbler burnishes castings, fabrication work and findings to a bright, work-hardened surface while you keep working at the bench. The Foredom RT101 kit pairs a programmable direct drive tumbler with stainless steel mixed shot and a concentrated burnishing solution, so wet tumbling runs are repeatable from one batch to the next. Drop parts into the barrel and come back to softened edges and a clean, bright sheen.

Features

• Programmable controls with digital speed display, timer and forward/reverse rotation for repeatable wet tumbling cycles.
• Variable-speed operation lets you slow down for delicate components or speed up for heavier cutting media.
• Direct drive design with no belts to replace for reduced maintenance.
• Clear barrel makes it easy to monitor media, solution level and workpieces while tumbling.
• Stainless steel mixed shot gives scratch-free burnishing and work-hardening on jewelry metals.
• Concentrated finishing solution formulated for high-speed burnishing and magnetic tumbling applications.
• Compact footprint and barrel size suited to jewelry studios and small production shops.

Compatibility

Designed for burnishing gold, silver, copper, brass and other metals using rotary tumbling with steel or ceramic media. Stainless steel mixed shot can also be used in suitable vibratory tumblers, provided the machine has adequate weight capacity for a drum loaded to one-half to three-quarters full with shot. Otto MF 610 finishing solution is suitable for gold, silver, platinum and non-ferrous alloys such as copper, aluminum, zinc and nickel silver when used in magnetic or high-speed tumblers.

Notes

Rotary tumbling is a mass finishing technique that uses media, water and compound to burnish or cut surfaces over several hours or days. It is the slowest of the mass finishing methods, but offers excellent capacity for the cost and is not intended for the final polish on broad, flat surfaces.

Stainless steel shot is the low-maintenance choice for burnishing: unlike regular steel shot, which must be cleaned and stored in a protective solution after every use to prevent rust, stainless shot generally requires only occasional cleaning. Mixed shapes of balls, pins and diagonals help reach into detailed areas and produce a uniform, work-hardened surface.

Detergent compounds are used with cutting media to suspend grit and grime in the solution so parts come out clean rather than dirty. Burnishing compounds are used with steel shot and perform the same cleaning function while also keeping the shot conditioned for consistent results.