Precision Springs Engineered for Performance
Over 70 years of precision spring manufacturing, rapid prototyping, and engineering expertise trusted by OEMs across North America.
Why leading manufacturers choose Rockford Spring
We're a single-source partner: design support, prototyping, production, and quality — all under one US-based roof.
Engineering Design Assistance
Free DFM analysis from veteran spring engineers to optimize cost and performance before tooling.
Learn moreRapid Prototyping
First-article samples in as little as 48 hours so your project timeline never waits on springs.
Learn morePrecision Manufacturing
CNC coilers, fourslide presses, and grinding cells under one quality umbrella.
Learn moreQuality Testing
SPC monitoring, force-deflection testing, and PPAP-level documentation on every program.
Learn moreOn-Time Delivery
98.4% on-time rate backed by Kanban replenishment and forecast-aligned scheduling.
Learn moreDedicated Customer Support
One named program engineer per account — no ticket queues, no call centers.
Learn moreCustom spring solutions
Compression Springs
Engineered to resist compressive forces with consistent load-rate accuracy.
Extension Springs
Precision tension springs with custom hooks, loops, and end configurations.
Torsion Springs
Rotational force springs with single, double, and custom leg geometries.
Wire Forms
Complex 2D and 3D wire shapes formed on CNC and fourslide equipment.
Assemblies
Spring-and-wire-form sub-assemblies shipped ready to install.
Specialty Springs
Exotic alloys, micro-springs, and high-performance custom configurations.
Trusted across six mission-critical industries
Aerospace & Defense
Flight-critical springs and wire forms engineered to AS9100-compatible quality standards.
Medical Devices
Micro-springs and biocompatible wire forms for surgical instruments and diagnostics.
Automotive
High-cycle springs for valve trains, seating, latches, and EV powertrains.
Electronics
Battery contacts, connector springs, and precision wire forms for consumer & industrial electronics.
Industrial Equipment
Heavy-duty springs for hydraulics, fluid power, agriculture, and material handling.
Consumer Products
Durable springs for appliances, tools, sporting goods, and outdoor equipment.
From concept to high-volume production
Our engineering team doesn't just make springs — we solve mechanical problems. Whether you need a single prototype or a million units per year, our facility is optimized for speed, repeatability, and quality.
- Wire sizes .004" – .312"
- Exotic materials (Inconel, Elgiloy, Titanium)
- Rapid prototyping in 48 hours
- Fourslide & CNC operations
- Grinding, heat treat, plating in-house
- Statistical Process Control (SPC)
- Custom kitting & packaging
- Kanban delivery programs
Quality is the operating system.
Every program is built on Statistical Process Control, full material traceability, and ISO 9001:2015 practices that have been refined over seven decades.
From concept to production in six steps
- 01
Consultation
Submit your specs, CAD, or sketch. An engineer responds within 24 hours.
- 02
Engineering Review
DFM analysis and material recommendations to optimize cost and life.
- 03
Prototype
First-article samples produced and validated in as little as 48 hours.
- 04
Testing
Force, dimensional, and life-cycle testing against your acceptance criteria.
- 05
Production
Validated tooling and SPC-controlled runs from prototype to millions of pieces.
- 06
Delivery
On-time shipments via standard, Kanban, or vendor-managed inventory programs.
What engineers say about working with us
"Rockford got our actuator springs through PPAP three weeks ahead of schedule. They saved the program."
"We needed Elgiloy micro-springs nobody else would quote. Rockford's engineers redesigned the geometry and we hit our launch."
"Two million pieces a year, zero rejects in 18 months. Their SPC discipline is on a different level."
Engineering resources & design guides
55,000 sq ft of precision manufacturing in Rockford, Illinois.
Need a custom spring solution?
Upload your CAD files or technical drawings. Our engineers will review your specs and provide a comprehensive quote within 24 hours.