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.

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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.

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View Example Spring Manufacturing Projects

Manufacturing of a Music Wire Door Handle Springs
Manufacturing of Stainless Steel Buckle Springs
Manufacturing of Stainless Steel Compression Springs


Spring Manufacturing Capabilities:

Type of Spring (Primary)

Compression
Extension
Torsion

Type of Spring (Secondary)

Barrel
Battery Contact
Conductive
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
Squared

Direction of Helix

Left
Right

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
Brass
Bronze
Hastelloy
Inconel
Monel
Music Wire
Nickel 205
Phosphor Bronze
Stainless Steel

Available Finishes

Anodizing
Black Oxide
Cadmium
Cleaned & Oiled
Painting
Phosphate
Powder Coated
Shot Peening
Zinc

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 Manufacturability
Light Assembly
Surface Grinding
Tapping
Spot Welding

Production Volume

Min
$400
Prototype
Short Run
Max
1 Million Plus units
Mid Volume
Long Run

Lead Times Available

Just In Time (J.I.T.) Deliveries
Kanban

Industries Served

Aerospace/Aviation
Automotive
Construction
Consumer Product
Electrical
Electronics
Food Processing
Marine
Mining
Pharmaceutical
Plumbing
Pneumatics
Power Distribution
Security
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 (Compliant))
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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