ZTL TECH is now Zintilon. We’ve updated our name and logo for a fresh start. Check Now

Medical Shafts CNC Machining for Medical Industry

Medical shafts are precision cylindrical components that transmit motion and torque and are essential in medical devices and surgical instruments. At Zintilon, we focus on machining medical shafts with patented biocompatibility and proprietary Swiss-type turning, and grinding to achieve great concentricity and surface finish for faultless performance in sterile environments.
  • Machining for complex shaft geometries and functional features
  • Tight tolerances up to ±0.0002 in
  • Precision Swiss turning, grinding & electropolishing
  • Support for rapid prototyping and full-scale production
  • ISO 13485-certified medical device manufacturing


Trusted by 15,000+ businesses

Why Medical Companies
Choose Zintilon

prductivity

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.

10x

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.

world

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

Across the globe, Zintilon’s CNC machining medical shafts and instrument components helps hospitals, surgical centers, and medical device manufacturers.

Prototype Medical Shafts

Obtain high-precision prototypes of medical shafts that replicate your final design and are ready for testing concentricity and functional interfaces and sterilization compatibility for medical production compliance.

Key Points:

  • Rapid prototyping with precision.

  • Tighter tolerances (±0.0002 in).

  • Test design, material, and biocompatibility earlier in the cycle.

3 Axis CNC Machined Stainless Steel Passivation

EVT – Engineering Validation Test

Quickly iterate on medical shaft prototypes to ensure they meet all functional and safety requirements. Identify potential issues early for a smoother transition to full-scale medical device manufacturing.

Key Points:

  • Assess prototype function.

  • Conduct design iterations in a rapid sequence.

  • Check readiness for mass production.
Anodized Aluminum 1024x536

DVT – Design Validation Test

Prior to mass production, assess design for clinical function and the shaft’s design precision based on the use of alternative materials, surface finish, and treatments. Also, assess the mechanical clinical performance of the shaft.

Key Points:

  • Establish design precision and shaft concentricity.

  • Assess multiple materials, and surface finish and determine which to use for the mass production.

  • Check performance to assess readiness for mass production.
design aluminium

PVT – Production Validation Test

Assess if mass production of the shafts for the use in medical devices is feasible considering the clinical function of the design, shaft production, and the criteria for production efficiency. Also, determine production challenges that may arise.

Key Points:

  • Assess the feasibility of the mass production of the shafts considering the clinical function of the design.

  • Determine and mitigate potential production challenges at the design stage.

  • Ensure the production of mechanically reliable medical devices.
Anodized Titanium Fastener

Mass Production

Produce high-quality, medical-grade shafts at scale with precision and speed, ensuring reliable clinical performance and on-time delivery for medical device distributors and healthcare facilities.

Key Points:

  • Consistent large volume output

  • Medical-grade quality precision machining

  • Quick turnaround with stringent quality assurance
production

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.

Medical Device Shafts Machining Capabilities

CNC Swiss-type CNC machinists and Medical Device machining specialists integrated with the state of the art Swiss-type CNC machines and precision grinding machines for Medical Shafts CNC machining for the Medical industry. Each component is designed for optimal torque transmission, minimal friction, and durability to withstand lengthy sterilization cycles for laparoscopic instrument shafts, orthopedic drill shafts, and endoscopic tool transmission shafts which have critical surface finish requirements.

We offer precision Swiss turning, centerless grinding, electropolishing, passivation, and dimensional accuracy with biocompatibility surfaces to include runout and surface finish. Each of the medical shaft is machined from medical-grade stainless steel (304, 316L, 420, 17-4 PH), titanium alloy (Ti-6Al-4V ELI), or cobalt-chromium which has excellent biocompatibility and corrosion resistance during repetitive sterilization and surgeries to ensure it is biocompatible and corrosion resistant as described in the previous sentence.
milling

CNC Machining

sheet metal

Sheet Metal Fabrication

edm

Wire EDM

casting

Metal Casting

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 Medical Shafts Components

We CNC machine shop has a wide variety of medical shafts machining for medical industry. 15+, medical grade metals, and biocompatible alloys allows us to provide ISO grade competitive quality for rapid prototyping, precision surgical component manufacturing, and FDA compliant material for clinical grade component with consistency.
Aluminum Image

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 Image

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 Image

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 Image

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
Bronze Image

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 Image

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
Copper Image

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 Image

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 Image

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
Magnesium Image

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: Medical Shafts for Healthcare Applications

In surgical instruments and medical devices, medical shafts function as mechanical cylindrical components that facilitate the transfer of rotary or axial motion. Various medical instruments and devices employ shafts, such as laparoscopic shafts that serve as rigid insertion tubes during minimally invasive laparoscopic surgeries, arthroscopic shafts that house rotating blades for cutting arthritic tissues and bones within the range of 5,000 to 15,000 rotory cutting blade, orthopedic shaft drills and reamers that provide rotary and axial shaft instruments to cut the bone and hold the tools, endoscopic shafts that rotate and provide control and hold tools to guide the instruments through the working channels, extreme flexible catheter guide wire shafts, axial and rotary shaft instruments that hold and drive dental handpieces and rotate turbine shafts at 400,000 rpm, and robotic surgical drive shafts that control and hold surgical instruments and axial fixed control shafts to determine precise torque.

Considering that titanium, cobalt, and stainless steel generally possess proven biocompatible and corrosion resistant properties withstanding sterilization and were able to demonstrate surgical load resistance and mirror-polished surface accomplishment under 0.2 Ra microns valuable for medical devices, certain grades of stainless steel 304, 316L and 420, titanium alloy Ti-6Al-4V ELI with lightweight construction, and titanium offering 40% mass reduction of the surgical instruments, enhanced biocompatibility and strength, along with impressive corrosion resistance, and MRI compatibility, would explain some of the preference towards cobalt-chromium for high speed rotary shafts. Cobalt-Chromium alloys offering maximum strength and robust fatigue strength with superior resistance to wear and retention of small tolerances even after heat treatment.

Swiss-type CNC turning is able to create complete shafts from bar stock in single operations for multiple diameters, grooves, and threads. Centerless grinding is able to achieve tolerances for diameters to within ±0.0002 inches and for roundness to 0.00005 inches. Precision flats and keyways are constructed by surface grinding. Precision thread connections for instruments are created by thread grinding. Electropolishing is used to remove micro-burrs and achieve ultra-smooth surfaces below 0.1 Ra microns to prevent snagging on tissue. Passivation creates protective chromium oxide layers to enhance corrosion resistance to sterilization chemicals.

For journal bearings and sealing surfaces, diameters are within ±0.0002 inches. TIR is below 0.0001 inches, thus preventing vibration in instruments that rotate. Concentricity for multi-diameter shafts is within 0.0002 inches, surfaces have a 0.1 Ra microns finish that is also electropolished, and they have straightness of 0.001 inches per foot. Threads of which dimensions are within ±0.0005 inches to enable smooth rotational and reliable torque transmission, have all been controlled.

Yes. We offer flexible manufacturing capabilities including:
Rapid prototyping for design validation
Low-volume production for specialized applications
High-volume production with consistent quality control
Full structural and dimensional verification at every stage

All components are manufactured under ISO 13485 certified quality management systems for medical devices, ensuring full compliance with FDA regulations for Class I and Class II surgical instruments, European Medical Device Regulation (MDR) requirements, material biocompatibility testing per ISO 10993, ASTM F899 for stainless steel surgical instruments, complete traceability from raw material through final product, and adherence to Good Manufacturing Practices.

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

We design ultra-thin shafts down to 1.5 mm in diameter for pediatric and ophthalmic instruments, flexible shafts for steerable catheters and curved instrument pathways, hollow shafts for suction, irrigation, or wire passage, shafts with incorporated electrical conductors for electrosurgical instruments, lightweight titanium shafts for handheld instruments to reduce surgeon fatigue, and high-torque shafts with specialized surface treatments for bone drilling and reaming.

Controlling diameter within ±0.0002 inches permits appropriate spacing in bearings and seals, which prevents fluid escape and guarantees smooth rotation. Achieving minimal runout below 0.0001 inches eliminates vibration in high-speed rotating instruments. This enhances the instrument's ability to cut with precision and interact smoothly with the tissue. Electro-polished surfaces that are ultra-smooth and below 0.1 Ra microns facilitate complete cleaning and the removal of biological material that could accumulate between sterilization cycles in crevices. Within 0.0002 inches, concentricity and balance of rotation are achieved to prevent tissue trauma. Control of surface finish prevents tissue snagging and loss of control during insertion and manipulation. Materials maintain dimensional stability and preserve the corrosion-free surface of surgical instruments for reuse after 500 plus cycles of autoclave sterilization at 134°C
Got any more questions?