Custom Spring Manufacturing, Answered

Most RFQs are quoted within 24–48 business hours. Every request is reviewed by a real estimator — there’s no account to create and no sales funnel. If a design needs engineering review or a special material, we’ll tell you up front rather than letting the quote go quiet.

Request a quote or email your print to sales@trimaticspring.com.

To quote accurately we need the basic geometry, the material (or let us recommend one), the quantity, and how the spring has to load. A typical spec includes:

• Wire diameter, outside diameter (OD), and free length
• Material and finish — or leave them open and we’ll suggest options
• Quantity or estimated annual usage (EAU)
• A load or rate target (e.g. 12 lbf @ 1.5 in), or torque at a given angle for torsion springs

Don’t have full specs? A description, a target quantity, and how the part needs to load is enough to start. You can also screen a design first with our spring calculators.

Yes. If you have a physical sample but no print, we can reverse-engineer the spring — measuring wire diameter, diameters, free length, coil count, and end configuration — and quote a part that matches its form and function. Send the sample or clear photos with dimensions and we’ll work from there.

You can attach prints and models in PDF, STEP, STP, IGES, IGS, DXF, DWG, PNG, or JPG format, up to 25 MB per upload. Files go straight to our estimating team. Larger files? Email them to sales@trimaticspring.com and we’ll match them to your request.

Yes. We routinely sign non-disclosure agreements and treat proprietary customer designs, prints, and samples as confidential. If you need an NDA in place before sending files, note it in your RFQ or contact us first and we’ll handle it.

No hard minimum. Tri-Matic builds everything from small prototype and sample runs through high-volume production. Quantity affects your price per piece, not whether we’ll take the job — so you can start small and scale into production with the same supplier.

Yes — both. We support the full path from prototype validation through scaled, repeatable production. Our engineering and quality teams review geometry, fit, and process capability so a design transitions cleanly from sample to production without surprises. See Testing & Quality for how we validate new programs.

Lead time depends on the part — material availability, volume, and finishing requirements are the biggest drivers — so we confirm a firm date with every quote rather than publishing a one-size-fits-all number. Standard materials like music wire and stainless steel typically move fastest; specialty alloys and outside finishing can add time.

Need it sooner? Expedite and rush options are available on request — tell us your target date in the RFQ and we’ll tell you what’s possible.

Yes. For repeat production we support blanket purchase orders, scheduled releases, and stocking arrangements that smooth out lead time and pricing across the year. If you run regular volume, we’ll set up a release schedule that keeps parts flowing without you re-quoting each time.

Any tooling or setup cost is identified up front in your quote — never added after the fact. Many spring designs run on existing tooling with only a standard setup; others may need a one-time tooling charge that we’ll spell out clearly, along with how it amortizes across volume so you can compare total cost.

We coil and form a full range of spring and wire-form materials, and we’ll recommend one if you’re unsure. Common choices include:

• Music wire & hard-drawn (general purpose, dry indoor use)
• Stainless steel (corrosion resistance for food, medical, and outdoor parts)
• Oil-tempered & chrome silicon (higher-stress and elevated-temperature work)
• Brass and bronze (conductivity and corrosion resistance)
• Flat wire / strip and other alloys on request

The right material depends on the environment, load, temperature, and cost — tell us the application and we’ll guide the selection.

We manufacture compression, extension, and torsion springs plus custom wire forms, down to a minimum spring index of 2.5. Typical wire ranges by type:

• Compression springs: .005″–.331″ wire
• Extension springs: .005″–.314″ wire
• Torsion springs: .005″–.236″ wire
• Custom wire forms: complex bends built for consistency at scale

We offer a wide range of protective and decorative finishes, including phosphate, black oxide, zinc plating (clear, yellow, and black), and our Tri Clear and Tri Yellow finishes, plus passivation for stainless and other coatings on request. If you’re not sure what a part needs for its environment, we’ll recommend a finish. See Plating & Finishing for details.

Yes — both are on-site. Running plating & finishing and stress relieving under our own roof means fewer outside handoffs, tighter process control, shorter lead times, and full traceability from raw wire to finished, coated part.

Yes. We can supply material certifications and RoHS / REACH compliance documentation on request, along with the certs and inspection records your quality team needs for incoming approval. Note your documentation requirements on the RFQ so we capture them in the quote.

We manufacture to industry-standard commercial spring tolerances (per the Spring Manufacturers Institute, SMI), with tighter tolerances available where the design and process allow. A quick caution that saves time and money: the block tolerances pre-printed on many drawings come from machined-part conventions and often aren’t achievable — or necessary — on a coiled spring. Tell us which dimensions are truly critical and we’ll engineer the part to hold what matters.

Yes. You don’t need to be a spring expert to work with us. Our engineering team provides design-for-manufacturability (DFM) input, material and finish recommendations, and tolerance planning tied to what’s actually producible — reducing stress, fit, and repeatability risk before production release. Bring a target load and an envelope and we’ll help with the rest.

Yes. Our free spring calculators let you screen rate, load, stress, and fit before you send an RFQ:

• Compression spring calculator
• Extension spring calculator
• Torsion spring calculator

Results carry straight into a quote request so an estimator can pick up where you left off.

Spring index is the ratio of the mean coil diameter to the wire diameter — a measure of how “tight” the coil is. A lower index means a tighter, harder-to-form coil with higher stress and more spring-back; a higher index forms easily but can be less stable. We manufacture down to a minimum index of 2.5; designs near that limit get extra engineering attention to keep them repeatable in production.

Because the biggest names in manufacturing already do — and you can too. Manufacturers like GM, Honda, MTD, and La-Z-Boy rely on Tri-Matic springs in production parts. We’ve been a family-owned spring manufacturer since 1982, we’re ISO 9001 and IATF 16949 certified, and we back every program with documented quality, full traceability, and responsive engineering support. That combination — demanding-OEM experience plus the systems to prove it — is why buyers move their critical springs to us and stay.

Tri-Matic is certified to ISO 9001:2015 (Quality Management) and IATF 16949:2016 (Automotive Quality Management), issued by Eagle Registrations Inc. Current certificate PDFs are available for supplier review — see Testing & Quality or request copies with your RFQ.

Yes. We support automotive-grade program launches with Level 3 PPAP and a full APQP workflow, including PFMEA, control plans, capability studies (Cp/Cpk), MSA / Gage R&R, and dimensional reporting with ballooned drawings and PSW submission support. See Testing & Quality for the complete validation flow.

Quality is built into a documented system, not bolted on at the end. Every program runs through incoming material verification, in-process inspection with SPC, and final inspection on calibrated equipment, all backed by lot traceability, revision control, and inspection archives. That means we can trace a finished spring back to its raw material and process history when it matters. Details are on the Testing & Quality page.

We ship across the United States and internationally. Tri-Matic springs reach customers in Canada, Mexico, Brazil, Venezuela, Germany, Hungary, Ireland, China, Hong Kong, Thailand, and Australia, among others. Wherever your production runs, we can get parts there.

We supply precision springs and wire forms to manufacturers in demanding industries, including:

• Automotive and outdoor power equipment
• Lawn & garden, home appliances, and furniture
• Medical, fire safety, and safety-regulated consumer goods
• Firearms, electrical components, and general industrial products

Tri-Matic Spring is a second-generation, family-owned manufacturer founded in 1982, based at 535 Industrial Road, Savannah, Tennessee. We operate a 14,000+ sq ft facility with 50+ employees and more than four decades of spring manufacturing experience. Learn more on our About page.

Send a print or just the basics through our Request a Quote form, email sales@trimaticspring.com, or call 731-925-5316. A real estimator reviews every request, typically within 24–48 business hours.