Spring Manufacturing

As a premier manufacturer of custom springs, Plymouth Spring Company, Inc., has manufacturing capabilities that reflect the comprehensive nature of the services that we provide. We operate a facility that is designed with the flexibility to provide maximum value regardless of run size–from a single prototype to high volume long runs. Our shop is equipped with 36 high precision, CNC coiling machines, and complete tool making abilities. This array of systems and capabilities allows us to provide manufacturing capacity unmatched at this price point. Manufacturing is primarily focused on the production of compression, torsion, and extension springs; however, we can also manufacture barrel, battery contact, conductive, and constant force or “clock springs” with the same level of precision and speed. We can also accommodate requirements for a wide range of spring end configurations and provide surface grinding in-house, further streamlining the production process.

Custom Spring Manufacturing
Custom Springs
Extension Spring Manufacturin

The diversity of our spring manufacturing services is only matched by the range of wire diameters and materials that we can work with. These range from steel, stainless steel, and nickel 205 to various standard and super alloys, all in custom forms such as flat strip or wire forms. Also available in-house are a number of finishing and coating options. If other finishes are required, we operate a network of trusted vendors that can provide coatings and finishes to meet any specification.

Our success is built on over half a century of service, and as with any successful manufacturer, quality is the backbone of all of our processes. Our commitment and culture of quality is supported by our entire organization. We operate a robust quality program and hold an ISO 9001:2008 certification.

Because of our many years of experience, we understand that parts and components such as springs are often part of a much larger supply chain, and adding value to that chain is becoming an increasingly critical factor. For this reason, we also offer KanBan and JIT deliveries, customized to meet individual requirements.

Since 1959, customers from some of the most demanding industries have depended on us for high-quality springs manufactured to precision specifications. To learn more about our custom spring manufacturing services, please see the details below. For more information about our other outstanding services, please contact Plymouth Spring.

View Example Spring Manufacturing Projects

Music Wire Handle Spring

Manufacturing of a Music Wire Door Handle Springs

A customer from the security industry approached Plymouth Spring Company, Inc. to manufacture a music wire door handle spring. We manufactured the different parts of the music wire ...
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Manufacturing of Stainless Steel Compression Springs

A lighting industry customer came to Plymouth Spring Company, Inc. because they needed 80,000 to 120,000 stainless steel compression springs manufactured each year. To fill this ...
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stainless steel buckle spring

Manufacturing of Stainless Steel Buckle Springs

A customer from the military industry came to Plymouth Spring Company, Inc. to manufacture stainless steel buckle springs. To fill the yearly order of 2,400,000 million ...
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Spring Manufacturing Capabilities:

Type of Spring (Primary) Compression
Type of Spring (Secondary) Barrel
Battery Contact
Constant force (Clock Springs)
Custom Spring Form Flat Strip Form
Wire Form
Spring End Types Closed End Ground
Closed End Unground
Open End Ground
Open End Unground
Short Hook
Straight Offset
Straight Torsion
Direction of Helix Left
Wire Diameter Min (Compression)
.006 in
.1524 mm
Min (Extension)
.008 in
.2032 mm
Min (Torsion)
.006 in
.1524 mm
Max (Compression)
.200 in
5.08 mm
Max (Extension)
.200 in
5.08 mm
Max (Torsion)
.150 in
3.81 mm
Spring Materials Alloy Steel
Beryllium Copper
Music Wire
Nickel 205
Phosphor Bronze
Stainless Steel
Available Finishes Anodizing
Black Oxide
Cleaned & Oiled
Powder Coated
Shot Peening
Equipment Used CNC Coiling Machine
CNC Milling Machine (Tooling Department)
Equipment Capabilities CNC Capabilities
36 Machines
Wire Sizes .004 - .197 in
Additional Services Heat Treatment
Stress Relieving
Computer Aided Design (CAD)
CAM Programming
Aid in Design Work-Design for
Light Assembly
Surface Grinding
Spot Welding
Production Volume Min
Short Run
1 Million Plus units
Mid Volume
Long Run
Lead Times Available Just In Time (J.I.T.) Deliveries
Industries Served Aerospace/Aviation
Consumer Product
Food Processing
Power Distribution
Sporting Goods
Intended Applications Door Locks
Electromechanical Valves
Electrical Breaker Springs
Valve Springs

We Manufacture Springs for a Very Large
Range of Applications Please Inquire for Yours
Industry Standards Met ANSI (American National Standards Institute)
ASME (American Society of Mechanical Engineers)
ASTM (American Society for Testing and Materials)
DFARS (Compliant)
ISO (International Organization for
Standardization) 9001:2008 Certified
Mil-Spec (Military Specifications)
PPAP (Production Part Approval Process)
RoHS (Restriction Of Hazardous Substances
REACH (Registration, Evaluation,
Authorization, and Restriction of Chemicals)
SAE (Society of Automotive Engineers)
File Formats Accepted CADKEY
BMP (Bit Mapped Graphics)
GIF (Graphics Interchange Format)
JPG or JEPG (Joint Photographic Experts Group)
PDF (Portable Document Format)
TIFF (Tagged Image File Format)
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