High-Quality Long-Axis CNC Precision Milling For Industrial Applications

• Primary Material: 316L Surgical Stainless Steel

• Alternative Material: 304 Stainless Steel

• Material Certification: ISO 5832-1/ASTM A276

• Biocompatibility: ISO 10993 Certified

1. Deep Hole Drilling

   • Gun drilling technology

   • High-pressure coolant system (8-10 MPa)

   • Aspect ratio up to 1:30

   • Straightness ≤ 0.01mm/100mm

2. Precision Turning

   • Swiss-type CNC lathes

   • Micro-grain carbide tools

   • Dimensional tolerance: ±0.005mm

3. Surface Grinding

   • CNC centerless grinding

   • Diamond grinding wheels

   • Surface roughness: Ra 0.2-0.4μm

4. Polishing & Deburring

   • Multi-stage abrasive polishing

   • Electrochemical polishing available

   • 100% burr-free inspection

Our medical-grade slender shafts are precision-engineered using premium 316L stainless steel through advanced CNC machining processes. The products feature exceptional dimensional accuracy and superior surface finish, achieving mirror-like polishing quality (Ra≤0.4μm). The specialized deep hole drilling process maintains perfect straightness and internal surface integrity, while advanced cooling systems prevent material deformation during machining.

• Minimally Invasive Surgery: Laparoscopic instrument shafts

• Diagnostic Equipment: Precision guide mechanisms for imaging systems

• Surgical Robotics: Drive shafts and transmission components

• Endoscopic Systems: Flexible instrument guide components

• Orthopedic Instruments: Precision guidance and positioning shafts

• ISO 13485 Quality Management System

• Full material traceability

• Dimensional 100% inspection report

• Surface quality certification

• Sterilization validation support

• Cleanroom packaging (Class 1000)

Dongguan Yu Lin Sen Metal Technology Co., Ltd.: Has obtained theGB/T 19001-2016/ISO 9001:2015 quality system certification, as well as the GB/T42061-2022/ISO 13485:2016 medical device quality system certification. Focuses on the research and production of non-standard metal medical device precision parts, mainly as machined metal products. It possesses dozens of high-precision engra-ving lathes and CNCequipment,including CNC numerical control, numerical control centering machine, automatic lathes, turningmilling combined machines, precision laser cutting processing of stainless steel capillary tubes and stainless steel thin-walled tubes for sec-ondary processing. Main materials: stainless steel tubes, stainless steel, copper, alu-minum alloy, etc. for non-standard processing and customization. Widely applied in tools, electronics, electri-cal appliances, medical devices, automotive parts, transportation, and other industries. The company has been recognized by the industry for its "quality-oriented, honest operation" philosophy, mainly providing non-standard part prototyping and batch production processing, supporting custom drawings and sample customization, etc. The process flow is stable and efficient, integrating industry and trade for rapid delivery, with craftsmanship spirit ensuring quality, without middlemen, excellent value for money, and the company adheres to the business philosophy of "customer first, quality first, striving for excellence, win-win coopera-tion", "Confident and reliable after-sales guarantee!!!".

It has obtained the quality system certification in accordance with GB/T 19001-2016/ISO 9001:2015, as well as the medical device quality system certification in accordance withGB/T 42061-2022/ISO13485:2016. We focus on processing and customizing products for medical device hardware, and we have dozens of preci-sion CNC lathes and precision laser cutting processing equipment. We also have a R&D team composed of senior engineers and technicians. We are committed to providing customers with high-quality and high-precision processing and customization services for hardware parts, ensuring that each product meets the strict standards and requirements of the medical device industry. Through continuous optimization of production processes and improvement of technical levels, we can meet the diverse needs of customers and contribute to the development of the medical device industry.