Stainless steel adjusting pin shaft - special-shaped precision medical machinery component

Applications (Specific Products) and Characteristics of Special-shaped Pins in the Medical Industry

How Our Machining & Cold Heading Processes Solve Practical Problems

1. Specific Product Applications in Medical Industry

1.1 Life Support & Monitoring Equipment

• Neonatal incubators & infant warmers: Positioning pins, limit pins, hinge pins for door panels, support brackets, and adjustment mechanisms.
• Anesthesia machines & ventilators: Special-shaped locking pins, positioning pins for gas circuit modules, control panels, and internal structural components.
• Patient monitors & portable ultrasound devices: Anti-rotation special pins for internal supports, component fixing, and module assembly.

1.2 Surgical Instruments & Minimally Invasive Devices

• Laparoscopic / endoscopic instruments: Special-shaped drive pins, limit pins, and connecting pins for handle assemblies, bending sections, and actuating mechanisms.
• Orthopedic & dental instruments: Special locking pins, stepped pins, and knurled positioning pins for surgical drills, handpieces, and implant tools.
• Surgical robot arms: High-precision special-shaped pivot pins, joint pins, and transmission pins for small-space, high-load motion structures.

1.3 Diagnostic & Laboratory Equipment

• Biochemical analyzers & hematology analyzers: Special drive pins, eccentric pins, and guide pins for sampling mechanisms, reagent trays, and pump assemblies.
• CT / MRI equipment: Non-magnetic special-shaped pins for internal shielding, platform positioning, and non-interference motion systems.

1.4 Rehabilitation & Assistive Devices

• Rehabilitation robots & exoskeletons: Special joint pins, stepped pins, and anti-falling pins for limb movement structures.
• Orthopedic braces & prosthetics: Biocompatible special-shaped positioning pins and fixing pins for adjustable support components.

2. Key Characteristics of Medical-grade Special-shaped Pins

• High precision & complex geometry: Can realize stepped, knurled, eccentric, flanged, grooved, and other non-standard shapes.
• Stable fitting & anti‑rotation / anti‑loosening: Special structural design ensures no displacement under vibration and repeated assembly.
• Medical materials & biocompatibility: Mainly 316/316L stainless steel, titanium alloy, meeting ISO 10993 requirements.
• Sterilization resistance: Resistant to autoclaving, EO, and alcohol disinfection without corrosion or precipitation.
• Hygienic design: Smooth surface, no dead angles, easy cleaning, suitable for medical-grade cleanliness.
• High strength & long service life: Stable performance under high-frequency movement and long-term use.

3. Practical Problems Solved by Our Machining & Cold Heading Processes

1) High precision for complex special shapes

• Cold heading for high-efficiency near-net-shape forming.
• Precision machining for tight tolerances, ensuring stable assembly and interchangeability.

2) Consistency & stability in mass production

• Cold heading provides stable dimension, grain structure, and mechanical performance.
• Reduces deformation and improves reliability in medical equipment.

3) Cost reduction for medical components

• Combined cold heading + machining reduces material waste and processing time.
• Improves cost efficiency without compromising medical-grade quality.

4) Surface quality & cleanliness

• Supports polishing, passivation, electropolishing for Ra ≤ 0.8 μm.
• Free of burrs, cracks, and contamination risks.

5) Customization for medical devices

• Flexible development for non-standard pins according to assembly space, motion mode, and load.
• One-stop solution from design to mass production.

We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.

Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.

Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.

Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.

Our customers include Siemens, bo-sch, Foxconn, Panasonic Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.