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Surgical Pins CNC Machining for Medical Industry
Surgical pins are precision machined fixation devices that stabilize bone fragments and secure implants during orthopedic procedures and fracture healing. At Zintilon, we specialize in CNC machining of surgical pins using advanced Swiss-type turning and centerless grinding to achieve exceptional straightness, surface finish, and biocompatibility for reliable bone fixation and optimal healing in trauma and reconstructive surgery.
- Machining for complex pin geometries and thread profiles
- Tight tolerances up to ±0.0002 in
- Precision Swiss turning, centerless grinding & thread rolling
- Support for rapid prototyping and full-scale production
- ISO 13485-certified medical device manufacturing
Trusted by 15,000+ businesses
Why Medical Companies
Choose Zintilon
Fast Delivery
A professional engineering team that can respond quickly to customer needs and provide one-stop services from design to production in a short period of time to ensure fast delivery.
High Precision
We are equipped with automated equipment and sophisticated measuring tools to achieve high accuracy and consistency, ensuring that every part meets the most stringent quality standards.
ISO13485 Certified
As a ISO13485 certified precision manufacturer, our products and services have met the most stringent quality standards in the automotive industry.
From Prototyping to Mass Production
Zintilon provides CNC machining for surgical pins and related orthopedic fixation components for hospitals, surgical centers, and medical device manufacturers around the globe.
Prototype Surgical Pins
Obtain prototype surgical pins of high precision that accurately replicates your final design. Test insertion performance, verify bone engagement, and ensure proper mechanical strength prior to full-scale medical production.
Key Points:
Key Points:
- Rapid prototyping with high precision
- Tight tolerances (±0.0002 in)
- Test design, material, and fixation strength early
EVT – Engineering Validation Test
Quickly iterate on pin prototypes to guarantee they satisfy all biomechanical and insertion criteria. Detect possible challenges early to allow smoother full-scale medical device manufacturing.
Key Points:
Key Points:
- Validate prototype functionality
- Rapid design iterations
- Ensure readiness for production
DVT – Design Validation Test
Prior to mass production, validate the design by confirming the dimensions and mechanical performance of surgical pins created by applying varied materials and surface treatments to enhance design accuracy and optimal bone fixation.
Key Points:
Key Points:
- Confirm design integrity and strength
- Test multiple materials and configurations
- Ensure production-ready performance
PVT – Production Validation Test
Assess the large-scale production of surgical pins and find possible manufacturing limitations before production to validate large-scale production and ensure it is efficient and consistent.
Key Points:
Key Points:
- Test large-scale production capability
- Detect and fix process issues early
- Ensure consistent part quality
Mass Production
Generate surgical-grade pins and deliver on time to medical device distributors and healthcare facilities with precision and rapid fixation performance for reliable fixation.
Key Points:
Key Points:
- Consistent, high-volume production
- Precision machining for medical-grade quality
- Fast turnaround with strict quality control
Simplified Sourcing for
the Medical Industry
Our precision manufacturing capabilities are widely used in the medical industry. CNC machining, sheet metal fabrication and other technologies ensure high precision and heat resistance in the application of medical grade materials such as titanium alloy and PEEK.
Explore Other Medical Components
Browse our extensive selection of CNC machined medical parts, engineered to meet the highest quality and hygiene standards. From implant-grade components and instrument handles to housings for imaging systems and lab automation equipment, we deliver precision solutions for the evolving needs of the medical industry.
- Surgical Instruments
- Orthopedic Implants
- Bone Screws
- Bone Plates
- Hip Implants
- Knee Implants
- Dental Implants
- Medical Housings
- Surgical Handles
- Medical Shafts
- Surgical Forceps
- Scalpel Components
- Medical Couplings
- Medical Fittings
- Endoscopic Components
- Medical Valves
- Catheter Components
- Medical Connectors
- Surgical Clamps
- Medical Hubs
- Surgical Drills
- Prosthetic Components
- Medical Brackets
- Medical Casings
- Medical Tubing
- Medical Adapters
- Medical Covers
- Implantable Components
- Medical Device Enclosures
Medical Surgical Pins Machining Capabilities
Equipped with modern Swiss-type CNC machines and centerless grinders, as well as with skilled technicians in the medical device machining industry, we perform Surgical Pins CNC Machining for the Medical Industry. Every component ranging from Steinmann pins and Kirschner wires to threaded fixation pins with intricate tip geometries is designed for optimal bone penetration, fixation, and permanent biocompatibility.
We perform precision Swiss turning, centerless grinding, and thread rolling, as well as tip grinding to attain perfect straightness and surface quality. Each surgical pin is machined from medical stainless steel (316L, 17-4 PH), titanium (Ti-6Al-4V ELI), or cobalt-chromium, all of which afford superb biocompatibility and resistance to corrosion for implantation, sterilization cycles, and various pin fixation biomechanics.
We perform precision Swiss turning, centerless grinding, and thread rolling, as well as tip grinding to attain perfect straightness and surface quality. Each surgical pin is machined from medical stainless steel (316L, 17-4 PH), titanium (Ti-6Al-4V ELI), or cobalt-chromium, all of which afford superb biocompatibility and resistance to corrosion for implantation, sterilization cycles, and various pin fixation biomechanics.
Aerospace
Materials & Finishes
Materials
We provide a wide range of materials, including metals, plastics, and composites.
Finishes
We offer superior surface finishes that enhance part durability and aesthetics for applications requiring smooth or textured surfaces.
Specialist Industries
you are welcome to emphasize it in the drawings or communicate with the sales.
Materials for Surgical Pins Components
We CNC machine Surgical Pins for the Medical Industry. With 8 or more medical grade machined metals and biocompatible alloys, the CNC machine shop supports rapid prototyping and precision orthopedic fixation component manufacturing. Quality consistency and materials that meet FDA regulatory standards give us confidence.
High machinability and ductility. Aluminum alloys have good strength-to-weight ratio, high thermal and electrical conductivity, low density and natural corrosion resistance.
Price
$ $ $
Lead Time
< 7 days
Tolerances
Down to ±0.003 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Stainless steel alloys have high strength, ductility, wear and corrosion resistance. They can be easily welded, machined and polished. The hardness and the cost of stainless steel is higher than that of aluminum alloy.
Price
$ $ $
Lead Time
< 7 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Steel is a strong, versatile, and durable alloy of iron and carbon. Steel is strong and durable. High tensile strength, corrosion resistance heat and fire resistance, easily molded and formed. Its applications range from construction materials and structural components to automotive and aerospace components.
Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.001 mm (routing)
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Titanium is an advanced material with excellent corrosion resistance, biocompatibility, and strength-to-weight characteristics. This unique range of properties makes it an ideal choice for many of the engineering challenges faced by the medical, energy, chemical processing, and aerospace industries.
Price
$$$
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Highly resistant to seawater corrosion. The material’s mechanical properties are inferior to many other machinable metals, making it best for low-stress components produced by CNC machining.
Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Brass is mechanically stronger and lower-friction metal properties make CNC machining brass ideal for mechanical applications that also require corrosion resistance such as those encountered in the marine industry.
Price
$$$
Lead Time
< 10 days
Tolerances
Down to ±0.005mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Few metals have the electric conductivity that copper has when it comes to CNC milling materials. The material’s high corrosion resistance aids in preventing rust, and its thermal conductivity features facilitate CNC machining shaping.
Price
$$$
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed.
Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Iron is an indispensable metal in the industrial sector. Iron is alloyed with a small amount of carbon – steel, which is not easily demagnetized after magnetization and is an excellent hard magnetic material, as well as an important industrial material, and is also used as the main raw material for artificial magnetism.
Price
$ $ $ $ $
Lead Time
< 10 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Due to the low mechanical strength of pure magnesium, magnesium alloys are mainly used. Magnesium alloy has low density but high strength and good rigidity. Good toughness and strong shock absorption. Low heat capacity, fast solidification speed, and good die-casting performance.
Price
$ $ $ $
Lead Time
< 7 days
Tolerances
Down to ±0.005 mm
Max part size
3000*2200*1100 mm
Min part size
2*2*2 mm
Let’s Build Something Great, Together
FAQs: Surgical Pins for Medical Applications
Surgical pins are precision fixation devices that are inserted into bone to stabilize fractures, secure implants, and hold the bone in alignment during the healing process. There are several types: Kirschner wires (K-wires) are used for temporary fixation and range in diameter from 0.028 to 0.062 inches. Steinmann pins are used for skeletal traction and fixation of large bones, and their diameter ranges from 0.093 to 0.187 inches. There are also threaded fixation pins, which are used for cancellous bone, guide pins for drilling and implant placement, smooth pins for percutaneous fixation, cannulated pins for wire-guided insertion, and specialty pins such as elastic stable intramedullary nails and transfixion pins for external fixators.
Due to their mechanical properties, stainless steel, titanium, and cobalt-chromium are highly suitable materials for surgical pins. Medical grade stainless steel 316L and 17-4 PH demonstrates remarkable mechanical strength for fracture fixation, supporting loads greater than 500 Newtons while maintaining biocompatibility for temporary or permanent implantation, and corrosion resistance to bodily fluids. Additionally, cost-effectiveness for stainless steel enables high-volume production while adequate stiffness to the stainless steel implants prevents excessive bending during insertion. Titanium Ti-6Al-4V ELI provides even greater biocompatibility for long-term implantation, MRI compatibility for post-operative imaging, and outstanding corrosion resistance. Furthermore, the reduced modulus of elasticity in titanium minimizes stress shielding while permitting osseointegration for permanent fixation. Cobalt-chromium implants are designed to deliver maximum strength and hardness for pins requiring minimal deflection; to withstand outstanding fatigue strength under cyclic loading.
Swiss CNC machining employs turning operations to create surgical pins from wire or bar stock in one operation with complete features including tapered points, threads, and diameters. Achieving straightness tolerances of 1mm per 1m and an outside diameter finish of 0.2 micron Ra is superb. The centerless grind is also able to hold diameter tolerances of 0.0002 inch. Cold forming of threaded pins increases pointed end strength by 30% over cutting the threads. Tip grinding to create pointed trokars, diamonds, and threaded ends is performed to optimize bone penetration. Surface finish of 0.1 micron Ra is achieved through electropolishing, and enhanced corrosion resistances is achieved through passivation. Laser marking identifies pins with lengths, diameters, and lot numbers.
We achieve insertion straightness of 0.001 inch per foot to avoid binding, and 0.0002 inch diameter tolerances for compatible surgical instruments and predictable insertion to control surgical implements. Total indicator runout (TIR) of 0.0005 inch eliminates smooth rotation in powered drills, while 0.0005 inch thread pitch accuracy maintains consistent fixation in bone. Penetration is controlled by a tip angle of 2 degrees, and insertion trauma is controlled with 0.2 Ra micron finish. Thus, insertion force and tissue trauma is minimized.
Yes, we provide rapid prototyping to verify fit and test assembly, with same-day CAD-to-part capability available for critical projects. For custom automation cells and research platforms, we perform low-volume production of 20 to 500 brackets. For standardized robot models, we perform high-volume production of thousands to tens of thousands of brackets annually, incorporating complete dimensional inspection, flatness verification, and material certifications.
Yes, Zintilon pins are certified to medical standards. As per ISO 13485 standard, we have a certified quality management system for every medical device in which every device incurs full compliance to the regulations of Class II medical devices in the United States, the European Medical Device Regulation (MDR) requirements, ASTM F138, and ASTM F136 standards, and the requirements of material biocompatibility testing per ISO 10993. Also, we have traceability from raw material heat lot to the final product, and adherence to Good Manufacturing Practices in the production of medical devices in Zintilon for patient safety in fracture fixation, osteotomy stabilization, and orthopedic reconstruction.
We provide comprehensive finishing solutions tailored to aerospace requirements:
Anodizing (Type II and Type III)
Passivation for corrosion resistance
Precision polishing for aerodynamic surfaces
Custom protective coatings and thermal barriers
Anodizing (Type II and Type III)
Passivation for corrosion resistance
Precision polishing for aerodynamic surfaces
Custom protective coatings and thermal barriers
For standard K-wires and Steinmann pins, the lead time is 10-15 business days which covers Swiss turning, centerless grinding, and quality verification. Custom threaded fixation pins with specialized geometries require a lead time of 3-4 weeks. For biomechanical testing, prototype pins can be made in 7-10 days, depending on material availability and tip geometry complexity.
Certainly. For hand and foot surgeries, we craft ultra-thin K-wires that are less than 0.028 inches in diameter. For pelvic and spine fixation, we construct larger diameter pins which are 0.250 inches or more. For pins designed for osteoporotic bone, we create custom threaded pins with specific pitch and depth. We develop cannulated pins which have lumens ranging from 0.035 to 0.062 inches for wire-guided insertion. We also create tapered pins which provide compression across fracture sites, and hydroxyapatite-coated pins which are designed for permanent fixation and to improve osseointegration. We have custom designs for craniofacial reconstruction, pediatric fracture fixation, and minimally invasive percutaneous fixation.
This involves closely monitoring the control of the diameter to ensure a fitting of a drill guide, power driver, and bone tunnel to a diameter of ±0.0002 inches, which results in predictable and accurately positioned paths upon insertion. Closely monitoring straightness to within 0.001 inches per foot will ensure a pin is greatly helped in avoiding bending due to the need to use lower forces, hence avoiding the potential for misdirection through dense cortical bone. Runout is controlled to less than 0.0005 inches to enhance stable and concentric rotation of power tools. Bone slot enlargement is avoided through precise machining of polygonal pins as more than 30% of insertion torque is wasted during insertion. Pre- and post-implant thermal necrosis is avoided due to careful machining of necrotic core to encircle bone slot and surfaces which exposed to friction were centerless ground to a smoothness of below 0.2 Ra microns. Fixation pin threads designed to specific geometry are able to engage cancellous bone with a pullout strength of over 400 Newtons. The ability to flex greatly with precision bending control, core materials are made to also withstand to the physiological loads of soft tissue to bone correlations. The apparatus of surgical fracture stabilization, osteotomy fixation, arthodesis, and reconstructive surgery endure implantation surfaces with healing corrosion for weeks to permanent. The implant acts as a reliable stabilizer of fractured bone during as and reconstructive surgical procedures.
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