DOI: 10.22184/2499-9407.2026.43.2.40.48

This paper describes the UTM 250-M ultra-­precision 5 axis grinding and boring machine, primarily designed for machining the most critical surfaces of axial piston hydraulic pump components. It describes the technology implemented on the machine for machining cylindrical plunger surfaces and drum bushing mating surfaces, ensuring micrometric dimensional accuracy, eliminating selective part selection and ensuring complete interchangeability. Additional machine retooling capabilities for machining components such as swash plate, support for swash plate, and slippers are demonstrated. The achieved precision and quality parameters are presented for each component type.