Industrial
Helping the industry that moves the world
For more than 50 years, RPK Group has engineered custom springs, washers, retaining rings, and stamped metal parts for industrial machinery. Our components work in valves, pumps, hydraulic systems, presses, pressure regulators, and electric-motor appliances, where load stability, fatigue life, and dimensional control are critical. Multislide stamping and an in-house rolling line enable us to deliver complex parts cost-effectively at volume, and space-saving wave and nested-wave springs can replace coil or Belleville stacks where axial space is tight.
Spring and stamping and bending applications in industry
Springs and metal solutions for industry
Wave Springs
Compression Springs
Sheet metal bending and stamping
Tension Springs
Torsion Spring
Canted Coil Springs
Bus bar
Constant Force Spring
Power Spring
Contact Springs and Contact Parts
Accordion Springs
Spiral Springs
Wire forms
Ring and seals
Arc Springs
Copper coils
Frequently Asked Questions
What industrial applications does RPK Group make springs and components for?
RPK Group supplies custom springs and metal parts for industrial machinery, including presses, valves, and solenoids, as well as for electric motors, appliances, electronics, robotics, and energy equipment.
When should I choose a custom spring over a standard catalog spring?
A custom spring makes sense when a standard part is oversized for the available space, undersized for the load, or fails due to fatigue in continuous operation. RPK Group designs the spring around the real load case, envelope, and cycle requirements.
Can RPK Group supply a wave spring that carries high loads in a small space?
Yes. RPK Group manufactures wave springs and nested wave springs, which carry high axial loads in a shorter, more compact form than equivalent coil springs, making them suitable for space-constrained machinery.
How does RPK Group extend the service life of an industrial spring?
RPK Group applies heat treatments such as tempering, hardening, and isothermal treatment to relieve internal stress and improve elasticity, and selects materials matched to the operating environment to extend fatigue life.
Does RPK Group handle low- and medium-volume industrial runs?
Yes. RPK Group produces custom components across a range of volumes, supporting both lower-volume specialized machinery parts and higher-volume series.
Which materials does RPK Group use for harsh industrial environments?
RPK Group works with stainless steels, chrome silicon, and high-performance alloys such as Inconel and Hastelloy for industrial applications exposed to heat, corrosion, or heavy cyclic loads.
Get the most out of our expertise in the industry
Our engineers work alongside our customers to find the best solution for them, applying scientific methods and knowledge accumulated over almost 50 years.
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