Surface finish
Tumbling for CNC & Molded Parts
Tumbling mass-finishes parts in a rotating or vibrating media. It deburrs, smooths, and polishes many parts at once.
- Deburrs and smooths in bulk.
- Low-cost finishing for many parts.
Surface finish
Tumbling mass-finishes parts in a rotating or vibrating media. It deburrs, smooths, and polishes many parts at once.
What it is
Tumbling places parts with abrasive media in a rotating barrel or vibrating bowl. As they tumble, the media rubs away burrs and sharp edges. It is a cheap way to finish large batches at once. It can deburr, smooth, or burnish to a soft shine.
How it works
Load parts & media
We add parts with the right abrasive media.
Add compound
A solution helps cut or polish.
Tumble
Barrel rotates or bowl vibrates for a set time.
Separate & rinse
We split parts from media and rinse them.
Why choose it
Finishes many parts together.
Removes sharp edges and flash.
Soft satin or burnished look.
Free parts tumble without holders.
Typical specs
| Specification | Typical range / value | Notes |
|---|---|---|
| Methods | Barrel tumbling, vibratory finishing | |
| Media | Ceramic, plastic, steel, walnut shell | |
| Result | Deburr to satin polish | |
| Base materials | Metal and rigid plastic |
Best applications
Deburred screws and fittings.
Soft-edge plastic and metal goods.
Bulk deburr after CNC.
Burnished decorative items.
Materials
We apply Tumbling to the materials below. Not sure if your material qualifies? Our engineers will confirm it for free.
Our solution
We tumble parts in bulk for fast, low-cost deburring and smoothing. We tune media and time to protect fragile features.
Design tips
Best when you have many identical parts.
Long thin features can bend; tell us.
Blind holes can trap media; plan cleaning.
FAQ