Micro Springs

Precision compression, extension, and torsion springs are engineered for high-performance applications in medical, aerospace, defense, and electronics industries.

PRECISION SPRINGS DELIVERY REPEATABLE PERFORMANCE IN SMALL SPACES

Motion Dynamics manufactures precision compression, extension, and torsion springs that deliver consistent, repeatable performance where space is limited and reliability is critical. Our forming and coiling processes accommodate ultra-fine wire diameters—down to 0.0005″—and are optimized for miniature assemblies used across medical, aerospace, defense, and electronic applications. 

We control every parameter of spring geometry—including pitch, coil count, free length, and stress distribution—to achieve exacting load, rate, and fatigue specifications. With in-house tooling, micro-inspection, and process validation, we ensure reliable performance at micron-scale tolerances from prototype quantities through high-volume production, supported by full traceability and lot certification.

Applications

Frequently Asked Questions

We specialize in precision compression, extension, and torsion springs made from ultra-fine wire, supporting applications where space, load accuracy, and reliability are critical.

We routinely form springs from wire as fine as 0.0005" (12 microns), maintaining precise control over coil geometry, free length, and load characteristics.

Our engineering and process development teams collaborate with customers to refine spring geometry, validate mechanical performance, and scale designs for production.

We manufacture springs in stainless steel, Nitinol, tungsten, Elgiloy, and Inconel, as well as other specialty alloys for specific performance or environmental needs. Finishing options include in-house ultrasonic cleaning, passivation, and proprietary chemical etching. Electropolishing is also available through our trusted finishing partners.

Related Capabilities

Coiling & Forming

Precision coiling and custom forming of fine wire to exact geometries and tight tolerances.

Nitinol Wire Forming

Expert shaping of Nitinol components with controlled transformation properties

Grinding & Finishing

End grinding of coil pipes and compression springs, ID deburring for catheter transitions, and custom faceting of tissue anchors.

Complete Cell Manufacturing

Fully integrated, dedicated manufacturing cells for high-efficiency, high-repeatability production.

Heat Treatment

We use inert and non-inert thermal processing to optimize mechanical properties like strength, flexibility, and fatigue resistance in wire components.

Electropolishing

We use electropolishing to remove microburrs, reduce surface roughness, and enhance corrosion resistance for biocompatible metal components.

Deburring

We apply manual and automated deburring techniques to create uniform edge transitions and enhanced surface finishes, particularly at coil pipe ends and formed features.

Coating & Plating

We apply in-house PTFE coatings and coordinate a range of precision plating and specialty finishes through our network of approved vendors.

Passivation & Cleaning

We perform ASTM A967-compliant passivation and ultrasonic cleaning using high-purity water maintained by a multi-stage treatment system, ensuring biocompatibility and contaminant-free surfaces.

Cleanroom Packaging

Our ISO Class 7 certified cleanroom provides a controlled environment for packaging components destined for critical applications. This setting minimizes particulate contamination and supports downstream sterilization and cleanroom-compatible handling.

Custom Packaging

We collaborate with trusted vendors to develop tailored packaging solutions that protect delicate components in transit, support efficient customer handling, and maintain high presentation standards.

Inspection

In-process and final inspections safeguard every component, ensuring it meets the critical dimensions and functional requirements our customers specify.

Metrology

Advanced measurement systems verify complex geometries with micron-level precision, building confidence in part accuracy and performance.

Rapid Prototyping

Rapid prototyping accelerates development by delivering functional, production-quality parts quickly for testing and design validation.

High-Volume Production

High-volume production combines efficiency and consistency at scale, ensuring every part meets critical specifications with reliable delivery.

Related Industries

We serve a range of advanced industries where precision, performance, and reliability are non-negotiable—from medical and aerospace to automotive, electronics, and beyond.

Cardiovascular

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Neurology

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Other Specialties

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Aerospace

We supply precision wire components and assemblies for aerospace applications that demand extreme reliability, tight tolerances, and full documentation control.

Automotive

We manufacture precision wire components for automotive applications requiring reliability, repeatability, and high-volume scalability.

Electronics

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PARTNER WITH US

Let’s build what others can’t.

Whether you’re developing a breakthrough device or scaling a complex assembly, Motion Dynamics has the expertise to help you get it done right. Explore how our engineering team can support your next precision build.