Busch® Carbide Ramroller Polishers

Compact casting porosity, eliminate surface imperfections, and burnish broad metal planes into a brilliant mirror shine in one step without stock removal. Engineered to high German precision manufacturing standards, the Busch® Carbide Ramroller Series (Stauchwalze) delivers high-efficiency mechanical surface burnishing for professional goldsmiths, fine jewelers, and precision metal fabricators.

Unlike traditional cutting burs that subtract metal or soft silicone polishers that quickly round off crisp edges, the Carbide Ramroller relies on high-speed micro-burnishing and mechanical compaction. Available in two distinct geometries—the RR426 Dome Cylinder (Walzenrund) and the RR431 Flat Cylinder (Walzenstirn)—each tool features specialized precision-ground facets around its perimeter. The Medium (M) 22-facet models provide aggressive surface smoothing and rapid compaction of coarse cast skins, while the Fine (F) 36-facet models produce an ultra-smooth, uniform mirror luster. Machined from solid micro-grain tungsten carbide, these burnishers maintain strict dimensional stability without flexing, heating excessively, or shedding abrasive particles. Fitted with an industry-standard 2.35 mm (3/32") shank, they mount directly into flexible shaft handpieces and precision bench micromotors.

Why Choose Busch® Carbide Ramroller Polishers

• Porosity Compacting & Cast Skin Sealing: Structurally compresses micro-voids and irregular cast skin across gold, platinum, and silver rather than abrading them away, conserving precious metal weight.

• Two Distinct Multi-Faceted Cut Grades: Choose 22 facets (Medium) for fast pre-burnishing and deeper porosity elimination, or 36 facets (Fine) for final high-gloss burnishing.

• Preserves Sharp Corners & Form Geometry: Burnishes surfaces flat or along controlled curves without rounding delicate bezel shoulders, channel borders, or signet edges.

• Dual Geometry Configurations: The domed cylinder (RR426) glides over concave contours and inside ring bands, while the flat cylinder (RR431) levels broad exterior flats and straight walls.

• Solid Micro-Grain Tungsten Carbide: Provides high wear resistance, rigidity, and extended service life without deformation under continuous bench production.

• Universal 2.35 mm (3/32") Shank: Drops into standard jewelry flexible shaft handpieces, quick-change chucks, and micromotor collets.

Technical Specifications & Product Matrix