What we do

Compression Springs | KB Delta
High Quality Compression Springs and Wire Forms

With over 50 years of combined experience KB Delta recognizes the customer is what matters. We understand the spring is such a crucial component for the proper function of machinery and equipment. For this reason at KB Delta, our spring engineers develop a close personal relationship with our customers to determine which type of spring and which material best suits their needs. KB Delta has upheld its prominent reputation as a spring manufacturing innovator and leader by providing customers with high quality compression springs and on time delivery at the most competitive prices in the industry.

Our process

The Right Spring Material

There is such a vast array of materials that it is imperative to determine the environment your spring or wire form will be operating in. Different environments require different materials and/or surface treatments. Factors that can affect your springs performance and lead to spring failure that must be considered are, the temperature your spring will be operating under and if the spring will be at risk of corrosion which are the most common causes of spring failure. KB Delta's team is skilled at working with an extensive host of materials and can help you to determine the right wire for your application. KB Delta is very proficient in working with the following materials; music wire, stainless steel, beryllium copper, Inconel, phosphor bronze, chrome silicon, Nimonic 90, Elgiloy, MP35, etc. with thicknesses ranging from .005" to .120".

Customization Process

If KB Delta stocks your spring or is provided spec sheets your spring will either be shipped out or put into production immediately. Otherwise mechanical and strength calculations are used to find a design of the spring which gives the spring performance you are expecting. We verify and validate the design by measuring and testing the important parameters that are important for your custom spring. KB Delta will also conduct stress analysis, force calculations, deflections, fatigue, capability studies will also be performed to determine the Cpk of the critical dimensions before placing your spring into production.

Our Capabilities

OEM Standards

KB Delta is highly experienced in manufacturing Super Alloy Springs. Besides coiling KB Delta also offers heat treating, stress relieving, magnetizing, grinding, painting, and the metallic plating of your springs. KB Delta specializes in difficult to form flat wire compression springs in a variety of standard and exotic materials; Inconel X-750, Inconel 718, Nimonic 90, Hastelloy C-276, MP35N, Phynox (Elgiloy), Titanium (Grade 5), music wire, stainless steel, beryllium copper, Inconel, phosphor bronze, chrome silicon, Nimonic 90, Eligiloy, MP35, etc. with thicknesses ranging from .005" to .120". All springs meet or exceed OEM Standards and are RoHS compliant.

  • Constant Pitch Compression Springs
  • Variable Pitch Compression Springs
  • Conical Compression Springs
  • Flat wire Compression Springs
  • Barrel/Tapered Compression Springs
  • Extension/Tension Springs
  • Many More Wire Forms
KB Delta Parts Performance Guarantee


  • Metallic Plates

    KB Delta manufactures and stocks a complete range of metallic compressor valve plates and rings for the natural gas, refrigeration and P.E.T. industries.

  • Thermoplastic Plates

    Our specialized precision tooling and proprietary lapping process gives our customers the highest quality thermoplastic plates and rings in the industry.

  • Springs

    We manufacture our own springs and stock over 2 million springs for a variety of OEM spring styles, forms and materials.

  • Peripheral Valve Internals

    KB Delta offers one of the most complete lines of valve internals in the industry. All of our parts are manufactured to OEM Standards in performance and efficiency.

  • Complete Valve Repair Kits

    KB Delta offers a full line of valve repair kits for all the major reciprocating compressor manufacturers.

  • P.E.T. Compressor Parts

    KB Delta specializes in manufacturing compressor valve parts for high pressure air compressors used in the P.E.T. plastic bottle manufacturing industry.

Industries we serve

Natural Gas Industry

The processing and refining of Natural Gas into a marketable products, by separating gas into pipeline-quality natural gas and a stream of mixed natural gas liquids and the transportation of natural gas to through a series of reciprocating compressor stations and pipes, and from there to end users.

Blow Molding Industry

This industry manufactures blow molding machinery. Injection stretch blow molding process has two main different methods, a single-stage and two-stage process; these are the methods by which hollow plastic parts are formed.

Medical Technology Industry

The medical technology industry is an important part of the healthcare sector. It includes most medical devices which aid the prevention, diagnosis and treatment of diseases and illnesses. Established centers of this industry include the United States and Western Europe.