Metalloy Tooling - Saint Charles, IL
Distributor
Distributor of springs including nitrogen die springs. Gas and die springs are also available.
Brand Names: Kaller
www.metalloytooling.com/index.html

Diamond Wire Spring Co. - Pittsburgh, PA
Custom Manufacturer, Service Company
Custom manufacturer of gas springs including nitrogen die and nitrogen gas springs. Available in 0.008 in. to 0.750 in. wire diameter. Stock items are also available. JIT and Kan Ban delivery. Same-day shipping. Made in USA.
www.diamondwire.com/industries.aspx

N-Forcer Div. Of Die, Mold & Automation Components, Inc. - Dearborn, MI
Manufacturer, Custom Manufacturer, Service Company
Nitrogen die springs & D.D.C. wearplates. Numerous stroke length cylinders. Cartridge style assemblies. Special wearplates are manufactured as standards.

Performance Metals - Louisville, KY
Distributor
Items include die grease, nitrogen springs.Stock thicknesses of hot rolled steel plate in 1/8 in. increments starting at 1/4 in. thick through 2 1/8 in. and 1/4 in. increments through 6 1/2 in.

Acme-Danneman Company, Inc. - New York, NY
Distributor, Manufacturer, Custom Manufacturer
Dies, die sets (precision, steel & semi-steel multi-slide & ball pushing), ball plungers, bushings, clamps, rods, laps, pins, punches, straighteners, feeding equipment, press controls & springs (belleville disc, coil, compression, die, extension, gas).

Pohl Spring Works, Inc. - Spokane, WA
Distributor, Manufacturer, Custom Manufacturer
Custom design & manufacturer coil springs to fit just about any application.Types include compression, extension, or torsion coils to your specifications. Materials available include beryllium copper B197, chrome silicon 401, oil tempered MB A231, music wire A228, phosphor bronze B159, stainless steel, 4140, 4145, 5160. Finishes available include galvanize, zinc, nickel, powder coating in any color, electorolysis plating in most finishes.