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Total processing is possible with various processing machines, measuring instruments, and technologies! OKD Corporation specializes in ultra-precision finishing processes using single-sided lapping machines, surface grinding machines, multi-surface, and 5-axis machining centers. We own various processing equipment, including the single-sided lapping machine 165″ (φ4200mm) "PLR-420S" and the super finisher (outer diameter polishing machine) "SP-100LD." Additionally, we have numerous inspection and measurement equipment, including the high-speed CNC three-dimensional coordinate measuring machine "PRISMO 10X:1200." 【Processing Equipment (Excerpt)】 ■ Single-sided lapping machine 165″ (φ4200mm): Nomura Seisakusho "PLR-420S" ■ Single-sided lapping machine 120″ (φ3000mm): Nomura Seisakusho "PLR-300S" ■ Double-sided lapping machine 16B: Nippon Engis "TLP-16B" ■ Super finisher (outer diameter polishing machine): Matsuda Seiki "SP-100LD" ■ Surface grinding machine 406 (full static pressure): Okamoto Machine Tool Works "UPG406NC"

Our company is capable of processing while preventing the generation of processing stress through wrapping processing technology. The single-sided wrapping machine "PLR-420S" employs a static pressure bearing structure in the rotating part of the reference plate, allowing for smooth rotation without stick-slip phenomena or vibrations, and it also requires less polishing drive power, featuring an energy-saving design that considers the environment. The "PLR-420S" is one of the largest single-sided wrapping machines, capable of processing work sizes that were previously impossible to wrap. 【Features】 - Wet processing minimizes thermal exposure to the workpiece, resulting in less processing distortion. - Processing is done without clamping the workpiece, preventing excessive force from being applied, which reduces changes in precision over time after processing. - Flatness that could not be achieved through turning, machining, or grinding can be attained through wrapping processing. - By performing wrapping processing on the reference surface before precision finishing processes (grinding, machining), a high level of finishing can be achieved.

If you are experiencing issues such as "the grinding machine cannot achieve flatness" or "the surface roughness cannot be cleared," please contact us directly. 【Features of Lapping Processing】 ○ Wet processing minimizes thermal distortion to the workpiece, resulting in less machining distortion. ○ Since the workpiece is processed without being chucked, it is less likely to introduce machining stress, leading to minimal changes in precision over time after processing. ○ Flatness that could not be achieved through turning, machining, or grinding can be attained with lapping processing. ○ By performing lapping on the reference surface before precision finishing processes (grinding, machining), high-performance finishing can be achieved.