Thumler's Tumbler Model B Large Rotary Tumbler

The Thumler's Tumbler Model B Large Rotary Tumbler is a heavy-duty rotary tumbler designed for continuous burnishing, polishing, cutting, and surface finishing applications. Built for jewelry studios, lapidary work, and general mass finishing, it steadily processes parts over long cycles for consistent results. The low, steady rotation and rhythmic motion create a methodical finishing action that works around the clock with minimal supervision.

Features

• Heavy-duty rotary tumbler designed for continuous operation
• 15 lb capacity accommodates larger finishing batches
• Suitable for use with steel shot, plastic media, abrasive compounds, and polishing media
• Ideal for burnishing, work-hardening, cleaning, deburring, and polishing applications
• Can also be used for rock tumbling with silicon carbide and cerium oxide compounds
• Rubber barrel helps reduce operating noise during long tumbling cycles
• Slow rotary action provides controlled and even surface finishing
• Built for professional jewelry, lapidary, and workshop use

Specifications

Notes

• Rotary tumbling is one of the slowest mass finishing methods but offers excellent processing capacity for the cost.
• Use steel media with detergent compounds for burnishing and work-hardening applications.
• Use plastic media with detergent compounds for more aggressive surface cutting and material removal.
• Suitable for rock tumbling with silicon carbide abrasives for cutting and cerium oxide compounds for polishing.
• Not recommended for achieving a final mirror polish on broad flat surfaces.
• Designed for extended continuous operation over several hours or days.