Automotive Spring Manufacturers

Last updated: January 2026

This directory lists 87 automotive spring manufacturers across the United States, from high-precision valve spring specialists to heavy-duty suspension spring fabricators.

Buyers in this category are typically solving critical performance challenges, whether it's achieving highly linear spring rate curves for precision control systems, mitigating damaging spring surge in high-RPM engine applications, or ensuring optimal fatigue life for safety-critical components. The focus extends beyond basic dimensional conformity to intricate material properties, surface integrity, and post-processing steps essential for preventing issues like unexpected coil bind or unacceptable hysteresis under repeated compression cycles.

Manufacturers in this space vary significantly, ranging from those specializing in cold coiling for smaller wire diameters and intricate geometries, ideal for precision torsion or constant force springs, to hot coiling operations equipped for heavy-gauge wire used in truck suspension or railway applications. Others focus on high-volume production of specific spring types, such as Belleville washers or stamping springs, while some offer comprehensive engineering support for complex, custom designs and rapid prototyping for new product development cycles.

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Company Directory

87 companies nationwide

Aard Spring & Stamping

aard.com
Temecula, CA

Based in Temecula, CA, Aard Spring & Stamping is a custom manufacturer of springs, wire forms, and stampings. They produce compression, extension, and torsion springs in various sizes and materials, including music wire and stainless steels. The company serves diverse industrial needs with precision-engineered components.

info@aard.com+19512960844

Ace Wire Spring

acewirespring.com
—

Based in McKees Rocks, PA, Ace Wire Spring specializes in manufacturing custom springs and wire forms for bulk order customers. Established in 1939, this family-operated, woman-owned company produces made-to-order coil springs and wire forms from various round wires.

aceinfo@acewirespring.com+18008283353

Acxess Spring

acxesspring.com
Colton, CA

Based in Colton, CA, Acxess Spring specializes in manufacturing custom coil springs. They fabricate made-to-order springs to precise user or engineer specifications. Serving industrial clients, the company produces high-quality coil springs for diverse applications, including critical components for the automotive industry.

support@acxesspring.com+19512762777

Alcan Spring

alcanspring.com
Grand Junction, CO

Based in Grand Junction, CO, Alcan Spring manufactures custom leaf spring suspensions for diverse vehicles. The company utilizes American steel to build durable and strong automotive springs. They provide tailored suspension solutions, emphasizing high-quality, American-made components for various applications.

sales@alcanspring.com+19702412655

American Precision Spring

americanprecspring.com
Santa Clara, CA

Based in Santa Clara, CA, American Precision Spring manufactures custom precision springs and metal parts since 1979. They produce a wide array of quality components including torsion, compression, extension, flat, and leaf springs, wire forms, and stampings. The company serves diverse industries and emphasizes fast turnaround and quality.

sales@americanprecspring.com+14089861020

Advanced Precision Spring Corp

apspring.com
San Jose, CA

Based in San Jose, CA, Advanced Precision Spring Corp specializes in springs and machining. They offer comprehensive services including custom design, prototyping, manufacturing, and modifications for all types of springs, parts, and products, catering to diverse customer requirements.

info@apspring.com+14084366595

Argo Spring Manufacturing Co., Inc.

argospringmfg.com
Norwalk, CA

Based in Norwalk, CA, Argo Spring Manufacturing Co. Inc. specializes in precision springs, wire forms, and fourslide products. They provide metal stampings, screw machining, and mechanical assembly. The company offers custom springs like stainless steel torsion, compression, and titanium extension springs for diverse industrial applications.

nathanf@argospringmfg.com+15629216741

ASRaymond

asraymond.com
Maumee, OH

Based in Maumee, OH, ASRaymond manufactures a comprehensive range of industrial springs, including ISO Series Die Springs and Adjustable Locking Gas Springs. They boast one of the world's largest product catalogs, offering readily available items and custom manufacturing solutions to meet diverse application needs.

springsales@asraymond.com+18008727732

Associated Spring

associatedspring.com
—

Associated Spring custom engineers precision springs and stamped components for diverse manufacturing industries. They specialize in automotive transmission compression springs and stamped parts for engines, transmissions, and other critical transportation components. The company also serves aerospace, medical device, and general industrial sectors.

associatedspring@asbg.com+18005283795

Atlas Spring Company

atlassuspension.com
La Puente, CA

Based in La Puente, CA, Atlas Spring Company specializes in the design and manufacturing of leaf springs for various automotive applications. The company has been at the forefront of spring production since 1991, providing suspension components known for their consistent quality and reliable performance.

info@atlassuspension.com+16263337373

BHI Solutions

bhisolutions.com
Garden Grove, CA

BHI Solutions specializes in custom springs, stampings, and CNC wireforms, serving the automotive, aerospace, defense, and medical equipment industries. With US manufacturing plants, they provide high-quality metal fabricated components and assembly services. BHI is AS9100D and ISO 9001:2015 certified, ensuring reliable production.

webmaster@bhisolutions.web247support.com+18003859608

Precision Spring Manufacturing Co

candjspring.com
Lake Elsinore, CA

Based in Lake Elsinore, CA, Precision Spring Manufacturing Co produces over 30,000 stock and custom springs and wire forms. They manufacture compression, extension, and torsion springs for virtually any industry, including automotive, for use in cars, airplanes, and machines, offering immediate dispatch across the USA.

gbopc@verizon.net+15625445299

Century Spring Corp.

centuryspring.com
Commerce, CA

Based in Commerce, CA, Century Spring Corp. is an ISO 9001 and AS9100D certified manufacturer of stock and custom springs. Established in 1927, they produce high-precision compression, extension, and torsion springs for diverse OEM and MRO applications globally. The company offers extensive inventory and advanced manufacturing technology.

info@centuryspring.com+18002375225

Chadha Spring & Stamping

chadhaspring.com
Chino, CA

Chadha Spring & Stamping, based in Chino, CA, manufactures precision springs, Belleville washers, and metal stampings. They provide custom components for a diverse range of industries, including automotive, aerospace, medical, and general industrial applications. As an ISO-certified manufacturer, the company focuses on delivering quality and reliable products.

kc@chadhaspring.com+19099732375

Coil Spring Specialties

coilsprings.com
Saint Marys, KS

Based in Saint Marys, KS, Coil Spring Specialties manufactures automotive coil springs. The company serves the U.S. and Canada, providing specialized expertise and dedicated service to the auto coil spring industry.

info@coilsprings.com+18663188562

Cove West

covewestusa.com
Fullerton, CA

Based in Fullerton, CA, Cove West manufactures precision wire forms. These custom components are adapted for a variety of industrial applications, including automotive parts, industrial racking, fasteners, and clips. The company serves B2B customers requiring high-quality, engineered wire products.

sales@covewestusa.com+17145252930

Deaver Spring, Inc.

deaverspring.com
—

Deaver Spring, Inc. manufactures and customizes automotive suspension components, including leaf and coil springs, for cars, trucks, 4x4s, and recreational vehicles. Operating since 1892, the company specializes in spring repair and custom solutions, utilizing American-made 5160 spring steel for high-performance applications.

info@deaverspring.com+17145423703

Dexter Group

dextergroup.com
Elkhart, IN

Dexter Group manufactures leaf springs for various applications, including light, medium, and heavy-duty trailer markets. The company also specializes in custom spring applications, providing tailored solutions for specific industrial needs. Located in Elkhart, IN, Dexter offers a direct supply of quality springs.

csdexter13@dexteraxle.com+12606365311

Draco Spring Mfg. Co.

dracospring.com
Houston, TX

Based in Houston, TX, Draco Spring Mfg. Co. manufactures springs, wire forms, and stampings, offering hot and cold coiling. They provide automotive springs for racing suspensions, clutches, brakes, and transmissions. Draco Spring is ISO 9001:2015 certified, serving diverse sectors with custom and production orders.

inquiry@dracospring.com+17136454973

EATON Detroit Spring, Inc.

eatondetroitspring.com
Detroit, MI

EATON Detroit Spring, Inc. manufactures custom and replacement leaf and coil springs for classic and modern vehicles. Operating since 1937, the company produces parts from original blueprints, specializing in high-quality automotive springs. All manufacturing takes place in the United States, supporting American automotive icons and enthusiasts.

inquiries@eatonsprings.com+13139633839

EMCO Industries

emcoind.com
Claremore, OK

Based in Claremore, OK, EMCO Industries manufactures heavy-duty, light-medium, and specialty leaf springs. With over 30 years of experience, they provide durable springs and heat-treated products for specialty vehicles, trailers, agricultural equipment, recreational vehicles, and OEM axles. The company offers capacities ranging from 250 to 14,000 pounds.

sales@emcoind.com+19183423488

EPI Performance

epiperformance.com
—

EPI Performance designs and manufactures extreme-duty driveline and suspension components for UTVs, ATVs, and snowmobiles. Products include performance clutch kits, drive belts, axles, and high-quality chrome silicon heavy-duty springs for severe off-road applications.

contact@epiperformance.com+12188296036

Hyperco

hypercoils.com
—

Based in Pontotoc, MS, Hyperco manufactures high-performance coil springs and suspension components. The company specializes in racing springs, applying its proven technology to off-road and street automotive parts. Hyperco serves the motorsports and general automotive industries with quality spring solutions.

info@hypercoils.com+18003652645

Landrum Performance Springs

landrumspring.com
Mentone, IN

Based in Mentone, IN, Landrum Performance Springs manufactures high-tensile chrome silicon alloy steel suspension springs. The company specializes in producing track car and racing springs in the USA, delivering accurate, consistent, and reliable performance for various automotive applications.

sales@landrumspring.com+18667033154

Lee Spring

leespring.com
Brooklyn, NY

Lee Spring manufactures a wide selection of custom springs, providing design and engineering support to meet specific customer requirements. They offer extensive material and finish options, with capabilities for both in-stock and custom-made spring solutions for various industrial applications.

sales@leespring.com+18887774647

Lewis Spring

lewisspring.com
Niles, IL

Based in Niles, IL, Lewis Spring engineers and manufactures custom flat springs. They offer punching, cutting, stamping, and bending services to create diverse spring shapes. The company provides specialized spring solutions for industrial applications, including the automotive sector, focusing on precision components.

springs@lewisspring.com+18476472200

Master Spring

masterspring.com
Roselle, IL

Based in Roselle, IL, Master Spring manufactures custom wire forms and coil springs, including clips, hooks, clamps, fasteners, compression, torsion, and extension springs. The company specializes in creating unique and complex parts, providing hard-to-produce coil springs and wire forms for various industrial applications.

info@masterspring.com+17084532570

McGaughys

mcgaughys.com
Fresno, CA

Based in Fresno, CA, McGaughys manufactures automotive suspension products. The company produces a range of components essential for vehicle suspension systems, directly serving the automotive industry with their manufactured solutions.

info@mcgaughys.com+15592268196

M&R Spring

mrspring.com
Palmyra, NJ

Based in Palmyra, NJ, M&R Spring manufactures precision torsion springs in both custom and standard sizes. The company offers stock springs for online purchase directly from the manufacturer and employs engineers on staff for specialized needs.

sales@mrspring.com+18568296887

M & S Spring

msspring.com
Fraser, MI

M & S Spring, based in Fraser, MI, custom manufactures compression, extension, and torsion springs. As a Tier 1, 2, and 3 supplier, they serve automotive, aerospace, and military clients worldwide, offering custom springs and clips for prototype and production needs.

sales@msspring.com+18003330721

MW Components

mwcomponents.com
Charlotte, NC

Based in Charlotte, NC, MW Components is a spring manufacturer with 20+ US-based facilities. They offer unlimited custom springs, including compression and extension types, and over 40,000 in-stock designs for quick delivery. They also provide wire forms and other precision components.

sales@mwcomponents.com+17048370331

Newcomb Spring Corp.

newcombspring.com
—

Newcomb Spring Corp. manufactures custom springs and wire forms, backed by over 100 years of experience. They produce precision compression, extension, and torsion springs, plus metal stampings and various wire forms. The company handles orders from samples to large volumes, ensuring strict compliance to customer specifications from its multiple US facilities.

ct@newcombspring.com+17149955341

NHK Spring Precision of America, Inc.

nhkprecision.com
Louisville, KY

Based in Louisville, KY, NHK Spring Precision of America manufactures automotive springs for car makers across North America. With nearly eight decades in component design, the IATF 16949 certified company focuses on precision manufacturing. They provide solutions for cost and weight reduction, ensuring performance longevity.

midori.siegfried@nhkusa.com+15029355556

Novi Spring

novispring.com
Brighton, MI

Based in Brighton, MI, Novi Spring specializes in precision-engineered garter springs for industrial and automotive applications. The company manufactures all parts in the United States with advanced production techniques for high-volume demands. They uphold quality with ISO 9001:2015 and IATF 16949:2016 certifications, ensuring reliable spring performance for critical needs.

info@novispring.com+12484864220

Precision Coil Spring

pcspring.com
El Monte, CA

Based in El Monte, CA, Precision Coil Spring manufactures custom precision springs and formed metal parts for diverse industries since 1951. They offer engineering, prototyping, and cycle testing services, along with both short-run and high-volume manufacturing. Products include compression, extension, and torsion springs, wire forms, and flat forms.

pcs@pcspring.com+16264440561

Peninsula Spring

peninsulaspring.com
Gilroy, CA

Peninsula Spring, based in Gilroy, CA, specializes in the engineering, prototyping, and manufacturing of custom stamped flat springs. The company provides precision components designed and produced to customer specifications, serving various industries with high-quality spring solutions. Their manufacturing expertise is applicable to automotive spring requirements.

dev@sherylreniesolutions.com+14088483361

Plymouth Spring

plymouthspring.com
Bristol, CT

Based in Bristol, CT, Plymouth Spring manufactures custom compression, torsion, and extension springs using high-precision CNC coiling machines. They also provide fourslide stamping and wire forms. The company serves diverse industries like automotive, aerospace, and medical, offering both custom and stock spring solutions for B2B applications.

sales@plymouthspring.com+18605840594

Pronto Products

prontoproducts.com
San Diego, CA

Based in San Diego, CA, Pronto Products is an ISO certified company specializing in precision wire forming and custom metal fabrication. They manufacture steel wire products for automotive, medical, and aerospace industries. Capabilities include wire forming, welding, stamping, prototyping, and metal finishing, solving complex manufacturing challenges.

info@prontoproducts.com+18003776680

Race Tech

racetech.com
Corona, CA

Based in Corona, CA, Race Tech manufactures high-performance suspension components, including lightweight Hi-Performance Fork and Shock Springs with industry-leading stiffness-to-mass ratios. The company also offers custom valving kits, G3-S custom shocks, and provides powder-coating services for both new and used springs.

sales@racetech.com+19512796655

PAC Racing Springs

racingsprings.com
Kent, WA

Based in Kent, WA, PAC Racing Springs specializes in the manufacturing of high-performance valve springs for the automotive racing industry. The company leverages advanced technology and manufacturing processes to produce durable and reliable springs designed for demanding racing applications, serving both professional teams and enthusiasts.

orders@racingsprings.com+18667999417

R.C. Coil Spring Manufacturing Company, Inc.

rccoilspring.com
Glendale Heights, IL

Based in Glendale Heights, IL, R.C. Coil Spring Manufacturing Company, Inc. is a custom manufacturer of springs, wire forms, and metal stampings. They produce tight tolerance parts for diverse sectors, including custom chrome silicon springs for the automotive industry, medical, aerospace, and electronics.

info@rccoilspring.com+16307903500

R & L Spring Company

rlspring.com
Lake Geneva, WI

Based in Lake Geneva, WI, R & L Spring Company manufactures custom compression, extension, torsion, and wire form springs. They produce a wide range of configurations for automotive, recreational, and commercial vehicles, including large suspension springs. The company also holds IATF 16949 certification.

rlsales@rlspring.com+12622497854

Sacramento Spring Inc.

sacspring.com
Sacramento, CA

Sacramento Spring Inc. specializes in the on-site manufacturing, repair, and modification of leaf springs and U-bolts. They are a full temper manufacturer, designing and building springs for diverse automotive applications, including 4x4s, hot rods, RVs, campers, vans, service bodies, and heavy trucks.

info@sacspring.com+19163715124

The St. Louis Spring Company

saintlouisspring.com
—

Based in St. Louis, MO, The St. Louis Spring Company is a family-owned manufacturer specializing in custom leaf springs. With over a century of experience, they handcraft durable springs from heavy-duty US steel for various vehicles. They offer customization for arch, material, and leafs, alongside rapid turnaround.

info@saintlouisspring.com+13145332132

Sampa USA

sampa.us
Portland, OR

Based in Portland, OR, Sampa USA manufactures heavy-duty commercial vehicle parts, specializing in automotive leaf springs and air springs. The company also produces suspension and linkage systems for trucks, buses, and trailers. Sampa USA employs superior manufacturing processes, adhering to IATF 16949 Automotive Quality Management System requirements.

emre.karaer@sampa.com+18337838385

Special Springs NA

specialspringsna.com
Canton, MI

Based in Canton, MI, Special Springs NA is a US manufacturer and supplier of industrial springs. They offer mini, standard, and large die springs, nitrogen gas springs, and custom springs, engineered for high durability and corrosion resistance. The company supports various manufacturing applications, including automotive sectors, with prompt service.

info@specialspringsna.com+17348922324

Spring Dynamics, Inc.

springdynamics.com
Almont, MI

Based in Almont, MI, Spring Dynamics, Inc. is an IATF 16949 registered manufacturer of custom springs and wire forms. They produce counterbalance, torsion, extension, and compression springs for the automotive, agricultural, aerospace, and military sectors. The company prioritizes quality engineering and consistent on-time delivery.

sales@springdynamics.com+18107982622

Spring Industries

springind.com
Ventura, CA

Based in Ventura, CA, Spring Industries custom manufactures a variety of springs, including compression, extension, torsion, small leaf, and flat springs, utilizing wire sizes from.004" to.500". They also produce wire forms and stampings, serving aerospace, medical, and commercial industries. The company is AS9100D/ISO9001:2015 certified.

info@springind.com+18002777464

Spring Team, Inc.

springteam.com
Austinburg, OH

Spring Team, Inc. based in Austinburg, OH, is an ISO-certified manufacturer specializing in precision compression, torsion, extension springs, and wire forms. Since 1968, they have supported OEM, specialty, and distribution markets with product development, prototypes, and assembly services, emphasizing quality and on-time delivery.

sales@springteam.com+14402755981

Spring Works Nationwide

springworks.com
Santa Rosa, CA

Based in Santa Rosa, CA, Spring Works Nationwide provides high-quality leaf and coil springs, along with suspension parts, for automotive and trailer applications. The company offers OEM and custom spring solutions for semi-trucks, cars, trucks, RVs, and various trailers, serving customers nationwide.

service@springworks.com+17075443833

Spring Works Utah Inc.

springworksutah.com
Woods Cross, UT

Spring Works Utah Inc. is a US-based manufacturer specializing in high-quality custom springs and wire forms since 1999. They produce compression, extension, torsion, garter, and flat springs, serving industrial, commercial, and agricultural sectors. The company provides essential components for various applications including oil and shaft seals.

sales@springworksutah.com+18012980113

Southern Precision Spring

spspring.com
Charlotte, NC

Based in Charlotte, NC, Southern Precision Spring designs and manufactures high-performance automotive springs and wire forms. They produce precision compression, extension, and torsion springs to exact specifications. The company offers custom solutions and manufacturing services for diverse industries, including automotive, trucking, and recreational vehicles.

info@spspring.com+17043924393

Stanley Spring & Stamping Corporation

stanleyspring.com
Chicago, IL

Based in Chicago, IL, Stanley Spring & Stamping Corporation manufactures custom precision springs and offers metal stamping. Holding ISO 9001:2015 and IATF 16949:2016 certifications, this family-owned company specializes in high-quality spring fabrication for the automotive industry and diverse industrial applications, serving clients since 1944.

info@stanleyspring.com+17737772600

Superior Spring Company

superiorspring.com
—

Superior Spring Company is a custom manufacturer of springs, wire forms, and assemblies with over 60 years of experience. They serve diverse industrial and commercial applications, including aerospace, defense, and medical sectors. The company offers comprehensive in-house capabilities for machining, processing, inspection, and testing.

sales@superiorspring.com+17144900881

Superior Spring Mfg. Co. Inc

superiorspring.net
Hamden, CT

Based in Hamden, CT, Superior Spring Mfg. Co. Inc. manufactures high-quality leaf springs, coil springs, and suspension parts for various vehicles. With over a century of experience, the company specializes in suspension, front-end, and braking components, serving as a regional specialist for automotive applications.

support@superiorspring.net+18009223283

Supertech Performance

supertechperformance.com
—

Supertech Performance manufactures high-quality, computer-designed valve springs and valve train components specifically for the automotive racing market. They also produce performance engine parts like valves, pistons, and rods, providing superior reliability and performance for various racing applications.

info@supertechperformance.com+14084482001

Ajax Wire & Spring Company

taylorspring.com
—

Ajax Wire & Spring Company, an American manufacturer and division of Taylor Spring, specializes in producing high-quality compression, extension, and torsion springs. Established in 1933, the company offers a catalog of over 1,500 stock springs and OEM parts for various industrial and hardware applications.

fnyrf@gnlybefcevat.pbz+17086290921

Tennessee Spring & Metal

tennesseespring.com
Nashville, TN

Based in Nashville, TN, Tennessee Spring & Metal specializes in manufacturing high-quality automotive springs. The company utilizes 100% traceable wire, ensuring consistent performance and compliance with rigorous industry standards for automotive applications.

info@tennesseespring.com+18004973545

The Spring Store

thespringstore.com
Colton, CA

Based in Colton, CA, The Spring Store provides a comprehensive range of stock and custom springs. Serving various industrial applications, the company offers tailored spring solutions and standard products. They directly supply diverse spring types to meet specific customer requirements.

support@thespringstore.com+19512762777

Triangle Suspension Systems, Inc.

triangleusa.com
—

Based in DuBois, PA, Triangle Suspension Systems, Inc. designs and manufactures heavy, medium, and light-duty springs for various OEM applications. The company offers a range of quality spring, suspension, and air spring products, boasting nearly 100 years of US manufacturing experience for industrial and commercial clients.

orders@triangleusa.com+18004586077

WCS Industries

wcsindustries.com
Muskego, WI

Based in Muskego, WI, WCS Industries manufactures custom springs, including torsion, compression, and extension springs, suitable for various industrial applications. They specialize in wire diameters from.005″ to.250″, providing engineering services for new design development and existing design enhancement. The company also produces cold-headed products and wire forms.

jvpbvy@jvpbvy.pbz+12626824711

Wermke Spring Manufacturing

wermkespring.com
Fenton, MO

Wermke Spring Manufacturing, based in St. Louis, MO, specializes in custom spring manufacturing and engineering services. They produce automotive springs, including compression, extension, torsion, and flat springs, along with wire forms. The ISO 9001:2015 certified company serves B2B customers nationwide.

info@wermkespring.com+16366775500

Western Spring Manufacturing

westernspring.com
Hugo, MN

Based in Hugo, MN, Western Spring Manufacturing is a custom manufacturer of precision coil springs and wire forms. They produce a wide range of spring types, including compression, extension, torsion, flat, and die springs. The company is ISO 9001:2015 certified and offers same-day quotes with expedited order options.

info@westernspring.com+16512241721

GKN Automotive

gknautomotive.com
Auburn Hills, MI

GKN Automotive manufactures aftermarket coil springs for the automotive industry. Utilizing advanced technology, they produce high-quality coil-springs from inconstant wire. With U.S. manufacturing facilities, GKN Automotive provides essential spring components, enhancing vehicle performance and reliability across diverse applications.

christoph.casellas@gknautomotive.com

Hunter Spring and Reel

hunterspringandreel.com
—

Hunter Spring and Reel, based in Sellersville, PA, manufactures precision mechanical springs, including constant force, constant torque, and custom designs. They also produce spring-driven reels and assemblies. Their products provide durable tension solutions for heavy-duty industrial applications, such as fast-charging cables for the automotive sector.

oline.westerdahl@ametek.com

Titan Spring

titanspring.com
Hayden, ID

Based in Hayden, ID, Titan Spring specializes in manufacturing custom compression, extension, torsion, and flat springs with over 60 years of experience. They serve the automotive, aerospace, military, and industrial sectors, providing precision-engineered spring and wire form components, plus custom washers.

ksg@titanspring.com

Aldan American

aldanamerican.com
Signal Hill, CA

Based in Signal Hill, CA, Aldan American manufactures USA-made coil springs and coilover springs for automotive applications. The company specializes in providing customizable suspension components for a wide range of vehicles, from classic American muscle cars like Chevrolet and Ford to modern performance builds, backed by a lifetime warranty for enthusiasts.

+13108347478

Anderson Quality Spring

andersonqualityspring.com
Canby, OR

Based in Canby, OR, Anderson Quality Spring (AQS) manufactures custom springs. For 30 years, they have supplied high-volume custom springs to automotive parts manufacturers. AQS also serves electronics, aerospace, and knife/tool industries, offering design and production solutions for diverse industrial uses.

+18666529370

Betts Company

betts1868.com
Fresno, CA

Based in Fresno, CA, Betts Company is a sixth-generation family-owned manufacturer and supplier of springs. Specializing in robust spring solutions and heavy-duty truck parts, the company serves the commercial automotive industry, providing essential components for vehicles and related equipment.

+18002272192

Betts Spring Manufacturing

bettsspring.com
Fresno, CA

Based in Fresno, CA, Betts Spring Manufacturing produces custom cold and hot wound coil, leaf, torsion, compression, and extension springs, plus sway bars and custom steel parts. They serve the automotive aftermarket, trucking, agriculture, and heavy industries, continuing their family-owned legacy of spring manufacturing since 1868.

+18002272192

Bloomingburg Spring & Wire Form Co. Inc.

bloomingburgspring.com
Bloomingburg, OH

Bloomingburg Spring & Wire Form Co. Inc. manufactures custom-made precision coiled springs and formed wire specialties. This global supplier produces compression, extension, and torsion springs, along with flat springs and wire forms. They serve diverse industries such as automotive, military, medical, aerospace, agriculture, and construction.

+17404377614

CHUHATSU North America, Inc.

chuosna.com
Glasgow, KY

Based in Glasgow, KY, CHUHATSU North America, Inc. manufactures a variety of automotive springs, including precision coil, flat, leaf, and suspension springs. They supply high-quality spring solutions for passenger vehicles, commercial vehicles, ATVs, and UTVs, ensuring exacting standards and reliability for modern vehicles.

+12706786200

Coiling Technologies Inc.

coilingtech.com
Houston, TX

Based in Houston, TX, Coiling Technologies Inc. is an ISO 9001:2015-certified custom spring manufacturer. Established in 1976, the company specializes in producing large custom coil springs for various industrial applications, including those within the automotive sector.

+18009692645

Eibach, Inc.

eibach.com
Corona, CA

Based in Corona, CA, Eibach, Inc. manufactures performance suspension springs and related parts for automotive, UTV, and moto applications. Specializing in race springs (ERS line), developed with global race teams, the company supplies precision-engineered components to professional racers and enthusiasts seeking enhanced vehicle handling.

+18005072338

Exacto Spring Corporation

exacto.com
Grafton, WI

Based in Grafton, WI, Exacto Spring Corporation is a business-to-business spring and wire-form manufacturer with over 65 years of experience. They produce custom compression, torsion, and extension springs, along with wire forms. Exacto Spring serves diverse sectors including medical, industrial, appliance, and automotive industries.

+12623773970

Hendrickson

hendrickson-intl.com
Canton, OH

Hendrickson manufactures parabolic, multi-leaf, and composite springs for the global commercial transportation industry. The company offers proprietary steel spring technology and cutting-edge LITEFLEX composite spring offerings. Hendrickson also supplies various mechanical, elastomeric, and air suspensions, integrated axle and brake systems, and other components.

+16309102844

HyTech Spring and Machine

hytechspring.com
Plainwell, MI

HyTech Spring and Machine, based in Plainwell, MI, specializes in manufacturing precision custom compression, extension, and torsion springs, alongside wireforms and micro products. As an IATF 16949:2016 certified contract manufacturer, they serve the automotive sector and other industries with advanced CNC technology.

+12696859250

Bal Seal Engineering

kaman.com
Colorado Springs, CO

Based in Colorado Springs, CO, Bal Seal Engineering, a Kaman company, manufactures custom-engineered seals, springs, and electrical contacts. These components are designed to enhance the performance and reliability of critical equipment across diverse industrial applications, from deep sea to deep space.

+18003661006

Manley Performance

manleyperformance.com
Lakewood, NJ

Manley Performance, based in Lakewood, NJ, engineers and manufactures high-performance Nextek valve springs for racing and demanding automotive applications. They utilize advanced CAD design, simulation, and multi-step processes like shot peening and nitriding. Their Super Clean Chrome Silicon steel alloy springs ensure maximum durability, stability, and precision.

+17329053366

MOOG Parts

moogparts.com
St. Louis, MO

Based in St. Louis, MO, MOOG Parts manufactures and supplies a comprehensive range of automotive suspension coil springs. Their products restore vehicle height, improve handling, and enhance safety and durability for various vehicles. The company provides direct solutions to the automotive aftermarket.

+18003258886

North County Spring

northcountyspring.com
Escondido, CA

Based in Escondido, CA, North County Spring provides custom heavy-duty leaf springs and comprehensive suspension repair services. The company specializes in manufacturing custom springs tailored to specific automotive needs. They also distribute a wide range of leaf springs and suspension parts for various vehicles.

+17607387020

Revco Spring

revcospring.com
Santa Fe Springs, CA

Revco Spring, based in Santa Fe Springs, CA, is a manufacturer specializing in precision springs, flat forms, and wire forms. They produce a wide array of spring types in various sizes, suitable for diverse industrial and automotive applications.

+15629491958

Valley Spring Works

valleyspringworks.com
Dixon, CA

Based in Dixon, CA, Valley Spring Works specializes in custom automotive spring manufacturing, repair, and fabrication. They provide custom coil springs, u-bolts, re-arching, and de-arching for cars, trucks, trailers, and RVs. Serving the Sacramento & Bay Area since 1987, they also offer custom powder coating and sandblasting.

+17075805344

Vulcan Spring

vulcanspring.com
—

Vulcan Spring, based in Telford, PA, manufactures high-quality custom springs with decades of expertise. They serve various industrial applications, including aerospace and medical. This US-based company offers specialized spring solutions, making it a relevant provider for the automotive manufacturing industry.

+12157211721

Walker Manufacturing Group

walkermanufacturing.com
Ontario, CA

Based in Ontario, CA, Walker Manufacturing Group specializes in precision manufacturing of custom mechanical components including power springs, constant force springs, flat springs, and spring assemblies. An ISO 9001 certified company, they serve various industries such as automotive, medical, aerospace, and defense.

+18889921580

Peterson Spring

pspring.com
—

Peterson Spring, founded in 1914, manufactures a wide range of springs, snap-rings, wire forms, and stampings. Renowned as a valve spring producer, the company serves diverse sectors including aerospace, agriculture, construction, medical, and recreational vehicles. It operates from 12 global locations.

No contact on file

Renton Coil Spring Company

rentoncoilspring.com
Renton, WA

Based in Renton, WA, Renton Coil Spring Company manufactures precision springs, wire forms, stampings, and assemblies. The company serves a diverse range of industries including aerospace, defense, industrial, medical, and motorsport markets.

No contact on file

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How to Choose a Company

  • Verify IATF 16949 certification is in place and actively maintained, especially for suppliers to OEMs or Tier 1s. For new part introductions, inquire about their full Production Part Approval Process (PPAP) capabilities, including control plans, FMEAs, and statistical process control (SPC) data.
  • Assess their Design for Manufacturability (DFM) capabilities specific to springs, particularly their ability to advise on material selection (e.g., chrome silicon for valve springs vs. music wire), optimal coil geometry to prevent coil bind, and surface treatments like shot peening to enhance fatigue life.
  • Confirm their in-house testing facilities include spring rate testing, fatigue testing (cycle counting), and dimensional inspection with appropriate gauges. Look for capabilities like magnetic particle inspection (MPI) or eddy current testing for surface flaw detection on critical springs.
  • Beyond standard carbon steel, verify their experience with specialized spring alloys such as stainless steels (e.g., 17-7 PH), chrome silicon, or advanced nickel-based alloys, and their ability to provide material certifications (MTRs) tracing back to the mill.
  • Inquire about their in-house capabilities for critical post-processing steps like scragging (pre-setting), stress relieving, grinding, and various corrosion-resistant coatings (e.g., phosphate, e-coating, zinc plating), which directly impact long-term performance and durability.
  • Be wary of suppliers who quote significantly lower than the market average without clear justification for material cost savings or processing efficiencies. This often signals a compromise on quality, inadequate testing, or a lack of crucial post-processing steps like proper stress relieving or shot peening, which leads to premature spring failure.
  • Distinguish between high-volume, automated production lines versus agile, low-volume/prototype shops. An enterprise buyer needs documented capacity and redundancy, while a startup might prioritize engineering support for rapid iterations, even if it means slightly higher unit costs for initial runs.

Frequently Asked Questions

What are the critical material specifications for high-performance automotive springs and why do they matter?

High-performance automotive springs often rely on materials like chrome silicon (SAE 9254/9255) for valve springs due to its high tensile strength and fatigue resistance at elevated temperatures. Music wire (ASTM A228) and hard-drawn carbon steel (ASTM A227) are common for general-purpose compression springs. The choice dictates the spring's ultimate tensile strength, temperature resistance, and fatigue characteristics, directly impacting reliability and longevity.

How do scragging and shot peening specifically enhance the performance and lifespan of automotive springs?

Scragging, also known as pre-setting, involves over-compressing a spring beyond its elastic limit to induce beneficial residual stresses, increasing its load-carrying capacity and resistance to set loss. Shot peening bombards the spring's surface with small, spherical media, creating compressive residual stresses that dramatically improve fatigue life and resistance to stress corrosion cracking, particularly crucial for dynamically loaded springs.

What critical data should I provide to a manufacturer for accurate spring rate and fatigue life predictions?

Beyond basic dimensions (wire diameter, coil diameter, free length), you must provide: desired spring rate (K-factor) with tolerances, working loads at specific compressed heights, maximum deflection, operating temperature range, cyclic frequency, and anticipated total cycles (fatigue life requirement). Information on mounting constraints and environmental factors is also vital.

What's the significance of IATF 16949 certification for an automotive spring manufacturer compared to ISO 9001?

While ISO 9001 establishes a general quality management system, IATF 16949 is the automotive industry's specific, rigorous standard built upon ISO 9001. It adds critical requirements for error prevention, continuous improvement, reduction of variation and waste, and robust production part approval (PPAP). For any safety-critical or high-volume automotive application, IATF 16949 is non-negotiable, indicating a supplier's commitment to OEM-level quality and process control.

How do automotive spring manufacturers typically prevent or manage issues like spring surge and coil bind?

Spring surge, a resonant vibration, is managed through careful design—optimizing natural frequency, variable pitch, or using dual springs. Coil bind, where coils touch prematurely, is prevented by designing adequate space between active coils at maximum deflection, often incorporating dead coils or ensuring the spring's solid height is less than its operating height. Manufacturers use advanced simulation software and physical testing to validate these aspects.

Should I specify surface finish or corrosion protection for my automotive springs, and what are common options?

Absolutely. Surface finish significantly impacts fatigue life and corrosion resistance. Options range from plain oil temper for internal, less exposed applications, to zinc plating, phosphate, e-coating (electrophoretic deposition), or even powder coating for enhanced corrosion protection and aesthetic requirements. For critical applications, specify salt spray hours (e.g., 96 hours, 240 hours) according to ASTM B117 to ensure proper coating performance.

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