Rotary Drum Polishing Machine

Rotary barrel polishing machines tumble parts, media and compound inside a rotating drum, using the sliding friction of the charge to deburr, burnish and smooth large batches of components economically. The simple, robust mechanism makes them the lowest-cost option per part for mass finishing.

Rotary drums are ideal for heavy deburring of ferrous and non-ferrous parts, rust removal, edge radiusing and pre-plating burnishing of items such as screws, washers, brackets, castings and hardware. Optional tilting drums, speed inverters and sound covers improve unloading, process control and workshop noise levels.

Longyanxing rotary drum machines are available in multiple capacities from bench-top units to full production barrels, with PU-lined shells for quiet, long-life operation. Request a quotation with your batch size and material.

Frequently Asked Questions

What is the difference between a rotary barrel polisher and a vibratory finisher?

A rotary barrel polisher tumbles parts inside a rotating drum, so the sliding action between parts and media is gentle and produces a smooth, high-gloss surface with very low noise and low running cost. A vibratory finisher removes material faster but is less gentle. Barrel machines are preferred for delicate parts and for mirror polishing.

How long does a barrel finishing cycle take?

Cycle time depends on the material, the starting surface and the finish target. Light deburring and brightening typically runs for 30 to 120 minutes, while deep edge radiusing or mirror polishing can take several hours. Running the barrel at the optimum speed and media load keeps cycles short and repeatable.

Can a rotary drum polishing machine run dry?

Yes. Rotary barrel machines can run wet with water and compound, or dry with organic media such as bamboo chips, walnut shell or corn cob. Dry barrel finishing is popular for jewellery and precision parts because it deburrs, polishes and dries parts in one step with no wastewater.