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A deburring machine is not one kind of equipment. There are four routes we build, and they differ in how the abrasive is brought into contact with the burr — a flowing charge, centrifugal force, a rotating tool, or a flexible needle mass. That difference decides what the process can reach: a cross-hole, a thread […]

Tumbling media is selected by three things: cutting grade, size relative to the smallest feature on the part, and shape. Material name — ceramic, plastic, porcelain — is the last decision, not the first, because the same “ceramic media” name covers a rough-cutting triangle and a burnishing ball that behave nothing alike. This page gives […]

How to Polish Glasses Frames: Acetate, Plastic and Sunglasses (DIY vs Factory) Glasses and sunglasses frames are polished for one of two reasons: to bring a dull or scuffed frame back to something wearable, or to produce frames at scale where every unit has to reach the same finish. Those are different problems with different […]

How to Polish Titanium Parts Without Discoloration Titanium does not simply get “hot” and change colour. What happens is more specific: the surface reacts with oxygen at a temperature the metal reaches easily during mechanical polishing, and the oxide that forms has a colour. That colour is a process signature, not a cosmetic defect you […]

A connector contact is often a formed strip of copper alloy with a plated layer measured in microns, made in quantities measured in millions per month. Two facts follow from that. First, almost any mechanical removal process removes the plating before it removes the burr. Second, the parts are small, light and numerous enough that […]

A watch case is not one surface. It is usually two or three — a brushed flank, a polished bevel, and often a plated or coated area — and the value of the part depends on the boundary between them staying sharp. Mass finishing removes material everywhere the media touches, so the decision that matters […]

Surgical instruments are the hardest category to finish well with mass finishing, because the two things the process is good at — removing material evenly and reaching into geometry — are the two things that ruin an instrument. A cutting edge that is rounded by a fraction of a millimetre stops cutting cleanly. A hinge […]

Barrel polishing machine can mean a rotary drum, a centrifugal barrel or a vibratory machine. A workpiece-led guide to choosing the route and specifying the request.

Compare centrifugal spin, media-assisted and hot-air drying after wet mass finishing, and see what to state in a dryer request so the trial answers the right question.