Hiomapäitä

Hiomapäitä refers to a category of interchangeable heads used for grinding or polishing work on rotating tools and machines. The term arises in Finnish manufacturing and workshop language, and the plural partitive form hiomapäitä is used when speaking of multiple heads in an indefinite quantity. These heads are designed to be mounted on common tool spindles and exchanged as needed during finishing operations.

Heads are typically mounted on rotating spindles and come in various shapes and abrasive materials. Common forms include cylindrical or conical grinding heads, wheel-shaped segments, and ball or bullet shapes for contour finishing. The abrasive layer can be diamond, cubic boron nitride, silicon carbide, aluminum oxide, or ceramic, depending on material and finish required. They are paired with standard shank sizes (for example 3 mm, 6 mm, 1/4 inch) or with Morse-taper adaptors.

Applications of hiomapäitä span multiple industries, including metalworking, woodworking, glass, ceramics, and jewelry, where they are used for deburring, edge finishing, smoothing, and detailed contour work. They are commonly employed with die grinders, angle grinders, CNC finishing heads, or other rotary tools.

Operation and safety considerations include using the appropriate speed rating, avoiding overheating, and applying coolant or lubrication as needed. Selecting the correct abrasive for the material and securing the workpiece are essential for a quality finish. Regular inspection and replacement of worn heads help maintain performance.

See also: Abrasives, Grinding wheel, Polishing, Tooling.