About Us: Custom Springs

Lee Spring Custom Parts

You know what you want. Now how do you make it happen? That’s where Lee Spring comes in. Since 1918, Lee Spring has been manufacturing custom springs, wire forms, stamping and four-slide parts for just about any application you can imagine. Not sure what you need? Our experienced engineering team will work with you from conception to completion. The result? A world-class custom product you can count on each and every time. With your ingenuity and our expertise, the possibilities are endless!

Custom Capabilities Overview
• Application/Concurrent Engineering staff
• Regulatory expertise including RoHS, REACH and DFARS
• Proof of concept methodologies
• CAD assisted product design, drawing and modeling
• In-house prototype production services
• Factories outfitted to effectively accommodate both short and long production runs
• In-house tooling production including EDM
• ISO 9001 Registered Quality Management System
• Extensive experience working with Aerospace/Military specifications (AS9100), Automotive Specifications (TS16949) and FDA Trial Support (21 CFR Part 820)
• Proprietary integrated quality control system
• State of the art computerized spring testing equipment
• Global supply chain network for both production and distribution
• Blanket agreement and consignment inventory management capabilities
• Pull/Kanban capabilities
• Ongoing Customer/Supplier improvement initiatives

From Start to Finish, Lee Spring Has the Custom Capabilities You Need!

Compression Springs:

Outside Diameter: 0.025 – 5.75"/0.64 – 146.1 mm
Wire Diameter: 0.004" – 0.625"/0.10 mm – 15.88 mm

Extension Springs:

Outside Diameter: 0.025 – 5.75"/0.64 – 146.1 mm
Wire Diameter: 0.004" – 0.625"/0.10 mm – 15.88 mm

Torsion Springs:

Outside Diameter: 0.025 – 5.75"/0.64 – 146.1 mm
Wire Diameter: 0.005" – 0.187"/ 0.13 mm – 4.75 mm

Wave Springs:

Outside Diameter: 0.200" – 8.000"/5.08 mm – 203.2 mm
Inside Diameter: 0.150" – 4.54"/3.81 mm – 115.32 mm

Constant Force Springs:

Minimum outside Diameter: 0.340" – 8.636 mm
Inside Diameter: 0.280" – 1.97"/7.11 mm – 50.04mm
Minimum Length: 11.80"/299.72 mm

Distinct Wire Spring Production Capabilities:
• Plastic Compression Springs
• Drawbar Springs
• Cone Springs
• Double Torsion Springs
• Extension Springs with Swivel Hooks

Stampings

Strip Width: up to 3" /76.20 mm
Strip Thickness: 0.005 to 0.062" /0.13mm - 1.57 mm

Fourslide Parts

Strip Width: 0.010" - 0.50070.25 mm - 12.70 mm
Strip Thickness: 0.003" - 0.125"/ 0.08 mm -3.18 mm
Wire Diameter: 0.005" - 0.18770.13 mm -4.75 mm

Secondary Operations and Finishing
• Plating: Nickel, Zinc, Cadmium Special Finishes (e.g., Black Oxide)
• Passivation
• Electropolishing
• Grinding
• Heat Treating
• Looping
• Powder Coating
• Color Coding
• Shot Peening
• Spring Setting
• Assembly

Materials
• Beryllium Copper
• Silver Coated Beryllium Copper
• Hard Drawn Carbon Steel
• Oil Tempered Carbon Steel
• Oil Tempered Chrome Silicon
• Oil Tempered Chrome Vanadium
• Elgiloy®*
• Hastelloye**
• InconelOt 600, 718 & x750
• Music Wire
• Phosphor Bronze
• Plastic Composites
• Stainless Steel, 300 Series Stainless Steel, 17-7

Please inquire regarding other materials.

*Elgiloy is a trademark of Elgiloy Ltd.
**Hastelloy is a registered trademark of Haynes International Inc.
t Inconel is registered trademark of Special Metals Corporation