Compact rotary tumbler kit for burnishing jewelry and small metal parts, combining a programmable tumbler, stainless steel mixed shot and concentrated burnishing solution for reliable, repeatable wet tumbling results. Drop castings, fabrication work or findings 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.
- Includes stainless steel mixed shot for scratch-free burnishing and work-hardening on jewelry metals.
- Includes 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.
Specifications
| Machine Type |
RT101 direct drive rotary tumbler |
| Voltage Range |
100–240 V AC (universal voltage) with standard North American plug |
| Speed Range |
Selectable from 5–100 rpm in 20 levels |
| Rotation Modes |
Forward and reverse |
| Typical Work Cycle |
Approximately 180 minutes |
| Barrel Capacity |
1.16 quarts (1 liter) |
| Media Capacity |
Up to 2.2 lb (1 kg) of tumbling media |
| Maximum Work Load |
Up to 7 oz (200 g) of parts in addition to media |
| Barrel Interior Dimensions |
3.5" (89 mm) diameter × 6" (152 mm) length between rollers |
| Barrel Opening Diameter |
3-1/4" (83 mm) |
| Brand |
Foredom |
What’s Included
| Item |
Part # |
Qty |
| RT101 rotary tumbler |
147.721 |
1 |
| Stainless steel mixed shot |
147.795 |
1 (2 lb) |
| Otto MF 610 magnetic tumbler concentrated solution |
147.772 |
1 (2 oz) |
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.
