Metal Coil Winding
Precision coiling for sensing, stimulation, and control.
Cleanroom Precision for
High-Performance Medical Coils
At Cirtec, we offer both standard and custom wire coil winding services, providing a wide range of coiling styles and sizes to meet the specific needs of medical device manufacturers. We deliver tight pitch control on straight, tapered, or multi-pitched coils, ensuring precision and reliability. Every coil is produced in a Class 8 clean room, maintaining the highest standards of cleanliness and quality for medical components. Our commitment to tooling expertise allows us to meet the tightest tolerances required for even the most stringent medical applications.
Our Metal Coiling Capabilities
Cirtec provides fully customized coil winding solutions for complex medical applications, including micro coils, multifilar coils, and precision assemblies. Using proprietary equipment and strict process controls, we achieve ultra-fine tolerances as tight as ±0.0002" for consistently high-performance results.
- Laser Welding and Soldering - Ideal for joining precious materials and dissimilar metals like Nitinol and Elgiloy
- Micro Components and Assemblies - Manufacturing of micro coils for intricate medical devices
- Coil Termination, Tipping, and End Condition - Expertise in finishing, trimming, and shaping coil ends to meet specific design and functional requirements
- Multi-Filar Coiling - Capabilities include multi-filar designs for applications requiring enhanced functionality or specific mechanical properties
- Plasma Welding and Resistance Welding - Additional methods for robust coil assembly and durability
- Overmolding of Coils - Insulation and protection for medical-grade applications
- On or Off Mandrel Supply - Coils can be delivered on mandrel for ease of handling or off mandrel for direct integration into assemblies
- Automated High-Volume Production - 24/7 lights-out production for high-volume coil manufacturing
Our wire coils are used in a wide variety of medical devices, offering precision and reliability across applications such as:
- Pacing and Defibrillator Coils
- Neurostimulation Coils
- Micro Coils (as small as 0.0005″ wire)
- Guidewires and Catheters
- Signal Transmission and Torque Transfer
- Ablation Leads and Electrodes
- Aneurysm Treatment Devices
- Neurology Embolic Coils
- PTCA and Vascular Intervention
Our wire coiling capabilities span across a range of sizes and medical applications. We offer precision in every detail, from small micro-coils to larger multifilar coils, all designed to meet exacting standards.
Key Capabilities and Specifications:
- Outside Coil Diameter - From 0.002″ to 0.200″
- Inside Coil Diameter - As small as 0.001″
- Overall Lengths - Up to 80″
- Tolerances - To ±0.0002″ on diameters
- Micro Coils - Built from wire as small as 0.0005” in diameter
- Multiple Filars - Up to 12 filars in a single coil
- Single to Multifilar Coils - Closed wound coils, variable pitch coils, and offset coils for a variety of medical applications
We uphold the highest standards of quality by incorporating comprehensive testing throughout the manufacturing process. These tests verify the durability, accuracy, and reliability of every coil, aligning them with the critical demands of medical applications.
Key Testing Capabilities:
- Droop Testing - Evaluates the coil's stiffness, flexibility, and response under load, ensuring it performs as intended during medical procedures
- Vickers Hardness Testing - Measures material hardness to verify strength and durability, particularly for coils subject to high stress or fatigue
- Dimensional Inspections - Precision measurements of coil diameters, lengths, and tolerances to ensure adherence to exact specifications
- Tensile and Torque Testing - Assesses the mechanical strength and performance of coils in applications requiring high reliability
By combining precision manufacturing with rigorous testing, our wire coils deliver exceptional performance and quality for critical medical applications.
We work with a wide range of standard and custom materials to meet the exact specifications required for medical device wire coiling. Whether you need flat, shaped, or coated wire, we provide precision wire coiling using the highest-quality materials for biocompatibility and performance. Our expertise extends across various wire types, enabling us to deliver reliable and durable solutions for the most demanding medical applications.
Key Materials Include:
- Stainless Steel - Known for its corrosion resistance and biocompatibility, ideal for surgical tools
- Nitinol - A shape-memory alloy frequently used for guidewires, stents, and catheters due to its superelasticity and biocompatibility
- Platinum and Platinum Alloys - Often used in neurostimulation devices and cardiac rhythm management, platinum provides excellent conductivity and durability
- Titanium - Lightweight, strong, and highly biocompatible, titanium is widely used in orthopedic implants and spinal devices
- Elgiloy and MP35N - These cobalt-chromium alloys are valued for their strength, corrosion resistance, and use in implants and other critical medical components
- Tungsten and Stranded Wire - Known for their high tensile strength, these materials are frequently used in precision medical components requiring durability
- Coated Wires (PTFE, ETFE, Hydrophilic) - Providing enhanced friction reduction and durability, these coatings are used in catheters, guidewires, and other devices that require smooth interaction with body tissues
Why Choose CirtecFor Metal Coil Winding?
- Custom coils
- Unparalleled precision
- State-of-the-art equipment
- Metal material expertise
- Rapid prototyping and production services
Cirtec delivers fully customized coil winding solutions for complex medical devices, including micro coils, multifilar coils, and precision assemblies. Our proprietary coiling equipment and tight process controls allow us to achieve ultra-fine tolerances down to ±0.0002", ensuring high-performance results in every application.
From neurostimulation and pacing leads to embolic coils and torque transfer systems, we work with a wide range of biocompatible materials and support rapid prototyping through full-scale production—all from our Class 8 cleanroom environments.
Deliver signal, 
torque,
and
control with
precision
coils
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