【Conventional Machining Limitations】
Traditional cylindrical grinding methods require clamping parts with a spindle, which restricts the ability to process ultra-small diameters or maintain consistent precision. Conventional machining often results in deformation, reduced accuracy, and limited scalability, especially when handling advanced materials like tungsten carbide or ceramics.

【Sanwa Creation’s Centerless Grinding Advantage】
Sanwa Creation specializes in ultra-precision centerless grinding, enabling stable and accurate production of micro components. Unlike conventional methods, centerless grinding supports the workpiece between a grinding wheel and regulating wheel, eliminating distortion and improving precision.

Key specifications include:
・Outer diameter tolerance: ±0.1 μm
・Roundness: 0.06 μm
・Cylindricity: 0.183 μm
・Surface roughness: Ra 0.0239 μm
・Processing range: φ0.01 mm to φ40 mm
・Workpiece length: 1 mm to 2,000 mm

【Nanogrind Integration】
Sanwa Creation enhances centerless grinding with its proprietary Nanogrind technology:
・Diamond grinding wheels for nanometer-level finishes
・Ability to produce stepped and tapered pins
・Ultra-long shafts with consistent accuracy
・Sub-micron accuracy beyond conventional manufacturers

【Applications in the Medical Industry】
Centerless grinding supports critical medical components, such as:
・Catheter guidewires from nickel-titanium alloys
・DNA micro-injection needles
・Plungers for dialysis devices
・Manipulator pins with sub-micron tips

【Applications in the Semiconductor Industry】
Semiconductor and electronics sectors rely on high-precision parts, including:
・Micron pins for fuel injection nozzles
・LED manufacturing nozzles
・Inkjet printer heads
・Precision shafts for semiconductor equipment

【Materials Capability】
Sanwa Creation processes advanced materials that many companies cannot:
・Tungsten carbide
・Ceramics (zirconia, alumina, silicon nitride)
・Diamond (PCD)
・Titanium and nickel-titanium alloys
・Stainless steels and specialty alloys

【Quality Assurance】
To ensure consistency and reliability, Sanwa Creation maintains:
・ISO9001 certification
・RoHS compliance
・Inspection reports for all orders
・Calibration certificates and full traceability upon request
・State-of-the-art metrology including 3D measurement and roundness testing

【Conclusion】
Sanwa Creation’s centerless grinding technology delivers accuracy and reliability far beyond conventional machining. With expertise in Nanogrind, advanced materials, and strict quality control, the company provides high-precision components for medical, semiconductor, and automotive industries worldwide.

【Contact Information】
Sanwa Creation Inc.
1-26-8 Miyauchi, Nakahara-ku, Kawasaki-shi, Kanagawa 211-0051, Japan
TEL: +81-44-740-6800
FAX: +81-44-740-6801
Website: https://www.sanwa-creation.co.jp/english/