Koneistettu

Koneistettu is a Finnish adjective and past participle derived from the verb koneistaa, meaning to mechanize or to machine-process. It describes something that has been subjected to machining operations or equipped with machinery. In engineering and manufacturing, a koneistettu osa (machined part) typically refers to a component that has undergone precision work with machine tools to achieve defined dimensions, tolerances, and surface finishes.

In industrial usage the term is common when distinguishing parts produced by machine tools from those that are cast, forged, or manually finished. Koneistettu tuotanto refers to mechanized production, where production steps are carried out with automated or semi-automated equipment, often reducing manual labor and increasing consistency and efficiency. The qualifier helps specify that the surface treatment, geometry, and fit requirements were achieved through machine processes such as turning, milling, drilling, grinding, or similar operations.

Etymology and related terms: koneistettu comes from koneisto, meaning machine or mechanism, with the suffix -ttu forming a past participle. Related terms include koneistus (machining), koneistaminen (machining process), and koneistustekniikka (machining technology). The term is widely used in technical documentation, manuals, and procurement specifications to indicate a machine-produced state of a component or system.