Achieving a cylindrical tolerance of 10μ! / Capable of producing 10,000 units per month with a stable mass production system.
This is a machining example of a "brake piston" used inside a hydraulic motor. We specialize in high-precision cylindrical machining and can flexibly accommodate everything from small lot prototypes to mass production. Material: FC (cast iron) Application: Hydraulic motor components Manufacturing process: Lathe Size: Φ176–329mm × total length 36.4–55mm Machining accuracy: Outer diameter fit tolerance g6, roundness 10μ, coaxiality 20μ (high-precision machining in microns) ☆ Frequently Asked Questions (Q&A) Q: How do you manage quality? A: We create a QC process chart for each product and obtain/manage process capability (Cp・Cpk). Our data-driven quality management achieves stable machining with minimized variation. Q: Can you handle everything from prototypes to mass production? A: Yes, we can consistently accommodate everything from small lot prototypes to mass production!
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basic information
Strengths of Okubo Iron Works - Five factories within walking distance → Flexible & rapid production system - Capable of short delivery times with a consistent processing system! Processing details of each factory Headquarters Factory: Bar steel cutting, lathe work, machining, polishing, welding, painting Second Factory: Lathe work, machining, surface grinding, wrapping Third Factory: Machining, cleaning, assembly, inspection Fourth Factory: Lathe work, machining, assembly, painting Fifth Factory: Lathe work, machining
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Delivery Time
※Please feel free to discuss short delivery times as well.
Applications/Examples of results
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Company information
Founded in 1948, we are a specialized manufacturer focused on precision machining. For over 70 years, we have been committed to "high precision and high quality," accumulating numerous achievements in the processing of construction machinery parts and hydraulic equipment parts. - Material procurement (general steel, special steel, castings, etc.) - Bar cutting - General heat treatment (quenching, nitriding, carburizing, high-frequency hardening, etc.) - General surface treatment (painting, plating, Parkerizing, deflaking, etc.) - NC lathe, machining center, grinding, welding, etc. We can arrange and manage all processes in-house. Leave everything to us! With a comprehensive set of inspection equipment and a quality management system based on ISO 9001, we guarantee high precision requirements with quality control honed through long-term transactions with renowned top manufacturers. Whether for prototypes or mass-produced items, please feel free to consult us regarding any machining concerns!
