大利根精機 List of Products and Services

We would like to introduce a machining case of cylindrical cylinder parts for power generation and energy equipment. Using S45C medium carbon steel, which has a balanced strength and machinability, we performed high concentricity outer diameter machining with an NC lathe, with a size of φ200×400mm. We minimized tool changes with a one-shot finish of the stepped inner diameter and handled the R processing of the stepped section all at once. The manufacturing is conducted under a temperature-controlled environment to minimize temperature fluctuations. 【Case Overview】 ■ Application: For power generation and energy equipment ■ Machining method and process: High concentricity outer diameter machining using an NC lathe ■ Product size: φ200×400mm ■ Lot size: 5 to 30 pieces If you are wondering whether such machining is possible, please feel free to contact us. ~ For complex machining with NC lathe and machining center, contact Ootone Seiki ~

We would like to introduce a machining case of ring parts for semiconductor manufacturing equipment. By finishing the S45C quenched material into a complex and three-dimensional shape with high precision, we achieve both functionality and durability within the equipment. The product size is Φ305× overall thickness of 2mm. The design incorporates numerous cutouts and stepped machining to avoid interference with wiring and cooling systems. Even with shapes that boast high machining difficulty, we maintain high reproducibility and quality through a 5-axis machining center and precision jigs. [Case Overview] ■ Industry: Semiconductor manufacturing equipment ■ Machining method and process: High-precision CNC cutting ■ Product size: Φ305× overall thickness of 2mm ■ Material: S45C quenched *If you are wondering whether such machining is possible, please feel free to contact us. ~ For complex machining of intricate shapes using NC lathes and machining centers, contact Ootone Seiki ~

We would like to introduce examples of processing box components used in industrial equipment and electronic devices. A5052 aluminum alloy is machined from block material using a machining center, with openings, tapped holes, and relief machining performed on each surface. The sealing groove is managed with a tolerance of ±0.01mm for groove depth, optimizing the groove cross-sectional shape (R shape and rectangular) based on airtightness and waterproof testing, and conducting intermediate stress relief treatments (intermediate annealing and preliminary finishing) to suppress component deformation. 【Case Overview】 ■ Industry: Industrial equipment and electronic devices ■ Processing method and process: Machining from block material using a machining center ■ Product size: Approximately 300×200×60 ■ Lot size: From 1 piece *If you are wondering whether such processing is possible, please feel free to contact us. ~ For complex processing with NC lathes and machining centers, contact Ootone Seiki ~

We would like to introduce a case study of high-precision ring parts for semiconductor manufacturing equipment, which require nano-level accuracy. Using SUS304 stainless steel and our unique processing technology, we ensure high precision in roundness (within 0.010mm) and flatness required for rotating bodies. At our company, we combine advanced NC lathes, 3-axis and 4-axis machining centers with skilled operator techniques to provide stable quality without accuracy fluctuations even in repeat processing. 【Case Overview】 ■ Industry: Semiconductor manufacturing equipment ■ Processing methods and processes: Utilizing NC lathes, machining centers, cylindrical grinding, etc. ■ Product size: φ220×50mm ■ Lot size: 1 to 10 pieces If you are facing challenges such as "Can this kind of processing be done...?", please feel free to contact us. ~ For complex processing combining NC lathes and machining centers, turn to Ootone Seiki ~

We would like to introduce examples of machining bearing housings for drive devices used in railway vehicles. Materials such as SCM440 (quenched steel), SF440A (forged), and SC450A (cast steel) are processed with high precision using NC lathes and machining centers, meeting the stringent quality standards of the railway industry. The bearing components of drive devices are essential parts that support the "stable running" of railway vehicles. Our company provides highly reliable products with precise cutting technology and a robust quality assurance system. 【Case Overview】 ■ Industry: Railway Vehicles ■ Machining Method and Process: Outer diameter and inner diameter grinding finish, angled hole oil groove machining ■ Product Size: φ300×60mm ■ Lot Size: 8 to 16 pieces *If you are facing challenges with machining like this, please feel free to contact us. ~ For complex machining with NC lathes and machining centers, turn to Ootone Seiki ~

We would like to introduce examples of machining round parts (cylindrical parts) used in drive systems for industrial machinery and railway vehicles. High-precision cutting of SF440A and SC450. Sizes range from φ300 to 500mm and 100 to 200mm. Round part machining is an area where differences in lathe technology can easily emerge. We possess specialized lathe machining skills and a flexible system that can respond to both prototype and mass production. 【Case Overview】 ■Industry: Industrial machinery and railway vehicles ■Machining method and process: Cutting ■Product size: φ300 to 500mm × 100 to 200mm ■Lot size: 10 to 100 pieces If you are wondering whether such machining is possible, please feel free to contact us. ~ NC lathe × machining center, for complex shape combined machining, please reach out to Ootone Seiki ~

Supports machining of brass parts! Achieved concentricity within ±0.01mm and beautiful finished surfaces through one-chuck processing with NC lathes. 【Case Overview】 ■ Machining Method: NC Lathe, Machining Center ■ Product Size: Φ150 ×120mm ■ Material: C3604 (Free-cutting Brass) In response to challenges such as severe tool wear, dimensional accuracy issues due to thermal deformation, and difficulties in managing burrs and surface roughness, we implemented integrated processing using a custom-designed dedicated jig for C3604, which requires conductivity and high precision, along with NC lathes. By minimizing process division, we ensured stable concentricity. 【Customer Feedback】 In configurations like this flange with multi-stage inner diameters, the integration of processes and one-chuck processing helped us meet all requirements for accuracy, appearance, and machining efficiency. *If you have any concerns about whether such machining is possible, please feel free to contact us. ~ For complex machining with NC lathes and machining centers, contact Ootone Seiki ~