Let we discover how VMT helped a leading German medical company solve critical microchannel and surface finish challenges for its implantable diagnostic devices.
A leading medical technology firm in Stuttgart, Germany, specializing in advanced implantable diagnostic devices.
Medical Technology & Implants
Client Overview
A leading medical technology firm required an implantable diagnostic device with intricate micro-fluidic pathways. Their design demanded sub-200µm micro-channels with an ultra-smooth surface finish of less than 0.2µmRa, specifications that had proven unattainable with their previous manufacturing partners.
These dimensions weren’t arbitrary; they were critical for both the device’s functionality, ensuring proper fluid dynamics at micro-scales and biocompatibility, as surface roughness can trigger adverse tissue reactions when implanted long-term.
Medical Technology & Implants
THE CHALLENGE
The medical company faced significant technical and challenges with their implantable diagnostic device components. They had already attempted production with one manufacturer, encountering consistent failures.
Previous attempts resulted in inconsistent channel dimensions, with variations exceeding 30µm, well beyond the ±5µm requirement. This caused unpredictable fluid flow patterns in testing.
Surface finishes measured 0.8-1.2µmRa, 4-6 times the required specification. Internal channel surfaces were even worse due to tool access limitations, measuring 1.5µmRa or higher.
Each prototype iteration required 4-6 weeks, with no guarantee of success. This glacial pace threatened to delay clinical trials and product launch by months.
Previous manufacturers lacked specialized micro-tools and fixturing required for such precise micro-machining, resulting in excessive vibration, tool deflection, and poor surface integrity.
Their CNC machining implantable diagnostic device parts required micro-channels smaller than 200 microns with an ultra-smooth surface finish of less than 0.2 micrometers Ra. These specifications weren’t just arbitrary, they were critical for both the fluid dynamics performance and long-term biocompatibility of the device once implanted.
Our CNC Machihning SOLUTION
The following is VMT Precision achieved the critical <200µm micro-channels and <0.2µmRa surface finishes that had eluded other manufacturers.
We have a purpose-built micromachining infrastructure specializing in extremely high-precision CNC machining of medical components.
Beyond CNC machining equipment, VMT employs specialized techniques developed specifically for achieving <0.2µmRa surface finishes in challenging materials like medical-grade titanium.
Achieving CNC machining medical devices with <0.2µmRa surface finishes required specialized post-machining processes tailored for micro-scale features.
Micro-Electropolishing
A proprietary electrochemical process that removes surface material at the micro-level, reducing roughness to <0.2µmRa even within complex sub-200µm channels.
Controlled Passivation
A precisely controlled chemical treatment that enhances corrosion resistance while maintaining the ultra-smooth surface finish required for biocompatibility.
Advanced Metrology
Confocal microscopy and white light interferometry to verify surface finish across all areas, including internal micro-channels.
These specialized processes are where VMT truly distinguishes itself. While other manufacturers can achieve either small channels or smooth surfaces, our expertise lies in delivering both simultaneously, creating sub-200µm micro-channels with <0.2µmRa surface finishes that meet the stringent requirements of implantable medical devices.
THE RESULTS
VMT’s specialized approach delivered results that exceeded the client’s requirements.
Achieved micro-channel width
Surface finish achieved
Dimensional tolerance
Prototype turnaround time
Customer feedback is more powerful than any claim we can make. Our satisfied clients share how we’ve met their needs and delivered high-quality results. We take pride in the trust they place in us and are dedicated to continuing to deliver outstanding results for every project.
August 2, 2024
VMT delivered what no other manufacturer could, consistent sub-200µm micro-channels with <0.2µmRa surface finishes in medical-grade titanium. Their precision machining capabilities transformed our implantable device project, enabling us to meet our performance requirements and stay on schedule for clinical trials.
VMT has 15 years of experience in CNC machining with 100 machines, making us well-equipped for both rapid prototyping and large-scale production of medical parts. We also offer sheet metal fabrication, 3D printing, and die casting to quickly deliver high-quality components for medical devices. Every part goes through 12 quality checks, ensuring a 99.98% pass rate.
By using CNC milling and CNC turning, we can produce a wide range of prototypes and production parts for medical devices with high precision and consistency.
We use laser cutting, bending, stamping, and welding to manufacture precise sheet metal parts for medical devices.
We using advanced additive manufacturing to create precise metal or plastic parts in the medical industry.
We provide die casting services for the medical industry, producing accurate metal parts such as housings and support structures used in medical equipment.
At VMT, we specialize in precision CNC machining for the medical industry, delivering components such as device enclosures, brackets, and custom parts. From rapid prototyping to full-scale manufacturing, we provide flexible and reliable solutions to meet your medical project needs.
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行政人员2021-04-22 08:20:402021-05-10 03:22:49Medical sensor probeIn the field of medical parts machining, especially for the material selection of customized products, VMT provides a wide range of options to meet the needs and application scenarios of different customers. The following are common materials:
| Available Materials | |
| Aluminum | AL6061,Al6063,AL2024,AL6082,AL7075, ADC12, ect. |
| Stainless Steel | SS201,SS301,SS303,S31803,SS304,SS316, etc. |
| Steel | Low carbon steel, medium carbon steel, high carbon steel, alloy steel, etc. |
| Copper | C11000,C12000, C36000, etc |
| Brass | H59,H62,H65,H68, H80, etc |
| Iron | A36,45#,1213,12L14, etc |
| Plastic | ABS, PE, PC, POM, nylon, Peek, etc. |
| Other | Various composite materials. |
Before machining, our dedicated surface treatment engineers will select an appropriate and cost-effective surface treatment method based on your specific requirements to bring your ideas to life. We have provided surface treatment services for over 15,000 metal and plastic parts. Common surface treatments include:
| Surface Finishes | Description | Services | Applicable Materials |
|---|---|---|---|
| Anodizing | Oxide layer for corrosion resistance and decorative colors | CNC Machining, CNC Turning, CNC Milling, 5 Axis CNC Machining, Precision CNC Machining | Aluminum, Magnesium |
| Electroplating | Thin metal layer for conductivity, wear & corrosion resistance | CNC Machining, Die Casting, Extruding & CNC Machining, Forging & CNC Machining | Aluminum, Copper, Steel, Stainless Steel, Zinc Alloy |
| Powder Coating | Durable, uniform coating with strong adhesion and wear resistance | Sheet Metal Fabrication, Laser Cutting, Punching, Bending, CNC Machining | Steel, Aluminum, Zinc Alloy |
| PVD (Vacuum Coating) | Hard thin film with wear resistance and decorative effect | Precision CNC Machining, Forging & CNC Machining | Stainless Steel, Decorative Parts |
| Passivation | Improves corrosion resistance without altering dimensions | CNC Machining, Metal Spinning Process & CNC | Stainless Steel, Copper |
| Polishing / Brushing | Smooth finish, removes machining marks, enhances appearance | CNC Milling, CNC Turning, Precision CNC Machining | Aluminum, Stainless Steel, Copper, Plastics |
| Painting / Spraying | Color & protective coating, enhances aesthetics | CNC Machining, Injection Molding, Die Casting | Plastics, Aluminum, Steel |
| Printing & Marking | Adds logos, patterns, functional marking | CNC Machining, Laser Engraving, Selective Laser Sintering (SLS) | Plastics, Aluminum, Stainless Steel |
| Black Oxide | Conversion coating, improves wear resistance, reduces glare | CNC Machining, Sheet Metal Fabrication | Steel |
| Galvanizing | Protective zinc coating against corrosion | CNC Machining, Forging, Extruding, Sheet Metal Fabrication | Steel |
VMT is a trusted CNC machining company with over 15 years of experience. We specialize in custom parts for various industries, offering design, prototyping, full-scale production, including surface finishing, sheet metal fabrication, 3D printing, and die casting.
2-Hour Quote
We provide quick and efficient quotations within just 2 hours. This ensures that your project can start immediately, helping you stay on schedule and make informed decisions early in the process.
DFM Analysis Report
Our DFM Analysis Report helps streamline your design process. This service saves time and avoids costly mistakes, allowing you to move forward with your project with confidence.
0.02 mm Tight Tolerance
At VMT, we achieve ultra-tight tolerances of up to ±0.02 mm, ensuring your parts fit and function with exceptional precision. Whether it’s for complex designs or demanding applications, we guarantee accuracy that meets the highest standards.
Lead Time as Fast as 3 Day
We understand the importance of time, which is why we offer lead times as fast as just 3 day. Our efficient processes and advanced equipment ensure that your orders are delivered quickly without compromising on quality.
40+ Materials and Finishes
VMT offers a wide range of over 40 materials and finishes, allowing us to meet diverse customer needs. From metals like aluminum and steel to specialized finishes like anodizing and powder coating, we provide tailored solutions for any project.
Industry Experience
With over 15 years of industry experience, VMT has built a reputation for excellence in CNC machining. Our broad expertise allows us to handle projects of any complexity, providing reliable solutions across a variety of industries.
Certificate
VMT is certified with industry-recognized standards like ISO 9001, ensuring our processes are constantly monitored and improved. With a yield rate of 98.8%, we are committed to delivering products that consistently meet or exceed customer expectations.
At VMT, we ensure the highest quality for all CNC machined parts. If your order doesn’t meet the specifications, we’ll reprocess the part or offer a refund. For any quality issues within one month, simply contact our team, and we’ll respond quickly to resolve the issue.
If issues arise, we’ll review the design and samples to find a solution. For problems after delivery, we’ll arrange a video call and send new samples if necessary. If the issue is our fault and cannot be fixed, we will process a refund or return promptly.
As a trusted CNC machining parts supplier, VMT holds ISO9001, and IATF16949 certificates, etc. Ensure that every medical components we produce meets international standards of precision, and quality.
Watch our detailed videos showcasing CNC machining processes, product demonstrations, and expert tips. See how precision and technology come together in real-time applications.
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What Tolerances Can We Achieve for Medical Parts?
With our advanced 3/4/5-axis CNC machines, we can produce medical components with extremely high accuracy — up to ±0.005mm for the most critical parts. The exact tolerance depends on the material, shape, and size of the part.
For example, whether it’s connectors, housings, or precision enclosures, we ensure consistent results through our 12-step quality control process, delivering a 99.98% success rate on parts.
Which Materials Are Suitable for CNC-Machined Medical Parts?
We work with a wide range of materials to meet different medical needs:
Aluminum (6061, 7075, etc.) – Lightweight, strong, and great for parts needing conductivity.
Stainless Steel (303, 304, 316) – Durable and corrosion-resistant, ideal for surgical or implant-related parts.
Copper & Brass – Excellent electrical conductivity, used in specialized components.
Engineering Plastics (POM, PC, ABS, PEEK, etc.) – Perfect for insulation, lightweight structures, or non-metallic components.
What is CNC Machining in the Medical Industry?
CNC machining in the medical industry refers to the use of computer-controlled machines to produce precise and complex components for medical devices. It ensures high accuracy, tight tolerances, and consistent quality, which are essential for surgical tools, implants, and diagnostic equipment.
What is a CNC in Medical Terms?
In medical terms, CNC refers to Computer Numerical Control—an automated process that controls machining tools via pre-programmed software to produce precise medical parts like surgical instruments or implant components.
What are the 7 Major Parts of a CNC Machine?
The seven major parts of a CNC machine are:
Controller: The CNC controller is the machine’s brain, responsible for reading and executing the program that directs the machine’s movements and operations.
Machine Bed: The bed supports the entire structure of the CNC machine and holds the workpiece securely while it is being machined.
Spindle: The spindle is the rotating component that holds the cutting tool. It moves the tool in and out of the workpiece for cutting operations.
Tool Holder: The tool holder securely holds the cutting tools in place during machining operations. It ensures that the tools are properly aligned and stable during the process.
Drive Motors: These motors drive the movement of the machine’s axes (X, Y, and Z) and control the positioning of both the tool and the workpiece.
Coolant System: The coolant system circulates coolant liquids to the cutting area to reduce friction, control temperature, and improve tool life and part quality.
Feedback System: The feedback system consists of sensors and encoders that track the position of the machine’s components. It provides real-time feedback to the controller to ensure precise movements and accurate machining.
What are the 5 Common Types of CNC Machines?
The five most common types of CNC machines are:
CNC Milling Machine: CNC milling machines use rotating cutting tools to remove material from a workpiece. They can perform a wide range of operations, including drilling, cutting, and shaping, and are commonly used for parts with complex shapes and fine details.
CNC Lathe: A CNC lathe rotates the workpiece while a cutting tool shapes it. Lathes are primarily used for cylindrical parts such as shafts, rings, and other symmetrical components, and are ideal for turning operations.
CNC Router: CNC routers are similar to milling machines but are often used for softer materials like wood, plastic, and foam. They are widely used in industries like cabinetry and signage.
CNC Plasma Cutter: CNC plasma cutters use a high-temperature plasma stream to cut through metals, particularly sheet metal. This machine is ideal for making straight cuts on materials such as steel, aluminum, and stainless steel.
CNC EDM: CNC EDM uses electrical discharges to erode material from the workpiece, allowing for the creation of precise shapes, often on hard metals. It’s ideal for intricate designs and delicate parts.
Upon receiving your 3D CAD file, our dedicated customer service engineer will thoroughly review your design for manufacturability, ensuring it meets your precise specifications and budget requirements. Contact us today for a free quote!
