Walnut Shell vs Corncob: How to Choose Dry Tumbling Media for Eyewear, Jewelry & Hardware Dry finishing media selection guide • Walnut shell & corncob • For dry tumbling, vibratory and centrifugal lines Dry organic media — crushed walnut shell and ground corncob — is the workhorse of dry tumbling and dry vibratory finishing. The two materials look similar in the bag, but they behave very d...
Centrifugal Disc vs Centrifugal Barrel Finishing: Which High-Energy Machine Fits Your Parts? High-energy mass finishing comparison • Centrifugal disc & centrifugal barrel • Machine selection guide When vibratory finishing is too slow or too gentle for the result you need, the next step up in intensity is a centrifugal disc or a centrifugal barrel machine. Both multiply the effective force betw...
How Acetate Eyewear Frames Are Mass Finished: From Tumbled Matte to Mirror Gloss Acetate frame polishing workflow • Barrel tumbling + bench touch-up • A repeatable process for eyewear production Freshly milled acetate frames come off the CNC looking chalky, with tool marks along the bevels and matte hinge seats. Turning them into the deep, wet-look gloss that defines premium eyewear is a staged pr...