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...
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...
Double-Deck Bamboo Tumbling Machine: Standard Operating Procedure, Control Guide & Finishing Recipes Model Series: SP-TB4 / SP-TB8 • Precision Dry Tumbling System • Official operation manual The SP-TB Series double-deck bamboo tumbling machine is a precision dry tumbling system designed for high-gloss finishing of premium eyewear frames (acetate, propionate), fine hardware, jewelry, and luxury...
Small Parts Finishing Guide How to Deburr Small Fasteners Without Damaging Threads, Points, or Recesses Screws, bolts, nails, pins, and rivets can be processed in bulk, but their functional features make them less forgiving than simple metal blanks. The right mass finishing process must remove loose burrs while protecting threads, points, drive recesses, hollow sections, and dimensional fit. Small...
Wet Finishing Troubleshooting How to Prevent Water Spots,White Film,and Cloudy Stainless Steel After Tumbling A stainless steel part can look clean while wet and develop spots,h
Production Separation Guide How to Separate Small Parts from Tumbling Media: Screens, Size Control, and Process Design A finishing cycle is not production-ready until parts can be separated from media repeatedly. This guide explains how part geometry, media wear, screen design, orientation, and external separation methods affect labor, carryover, and the risk of trapped media. Part-media separatio...
Surface Finishing How to Achieve Mirror Finish on Stainless Steel with Mechanical Polishing This guide covers the key factors to consider when planning a surface finishing process
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