Custom Spring Manufacturer


Custom Spring Solutions & OEM Spring Production

KENENG is a professional manufacturer that specializes in custom spring solutions and OEM spring production, catering to various industries with accuracy and reliability. 

Are You an OEM Manufacturer?

What Type of Springs Can KENENG Manufacture?

Custom Spring Solutions

KENENG is the leading custom spring manufacturing provider of a variety of springs.

Non-standard spring customization needs customers to coordinate design and production with us, according to the actual use of the environment, installation space, pressure size to choose the material of the spring, wire diameter, size and special processing technology.

customized spring

If you have any needs, please get in touch with KENENG, we will provide you with the best quality service.

What Type of Spring Materials Can KENENG Supply?

As a spring manufacturer in China, we can produce springs in various materials. Including stainless steel, carbon steel, copper, alloys, etc.

Alloy steel springs are made from steel enhanced with alloying elements such as chromium, vanadium, or molybdenum to improve strength, durability, and resistance to wear and fatigue of the spring. Known for their excellent load-bearing capacity and resilience under extreme conditions, these springs are widely used in automotive, aerospace, industrial machinery and heavy-duty applications. Their superior mechanical properties make them ideal for environments requiring high stress tolerance and long service life.

stainless steel pagoda tapered compression spring

Monel/hastelloy/Inconel springs are engineered from premium nickel-based alloys, offering exceptional resistance to corrosion, oxidation, and extreme temperatures. These springs maintain their strength and reliability in harsh environments such as chemical processing, marine, oil and gas, and aerospace applications.

Custom Torsion Springs

They are made from high-quality stainless steel grades, offering excellent strength, flexibility, and resistance to rust, suitable for applications in marine, medical, food processing and industrial equipment. With superior longevity and consistent performance, stainless steel springs are ideal for both indoor and outdoor use where durability and hygiene are essential.

stainless steel pagoda tapered compression spring

Titanium or tianium alloy springs are lightweight, with high-strength, known for their exceptional corrosion resistance and ability to perform in extreme temperatures. Offering an excellent strength-to-weight ratio, they are ideal for aerospace, marine, medical, and high-performance industrial applications. These springs maintain reliable elasticity and fatigue resistance while significantly reducing overall system weight, making them the preferred choice for harsh environments.

Copper and brass springs are highly conductive, corrosion-resistant, valued for their excellent electrical and thermal properties, and widely used in electronics, marine, and decorative applications. Copper springs offer superior conductivity and flexibility, making them ideal for electrical contacts and precision instruments, while brass springs provide added strength, wear resistance, and aesthetic appeal. These springs combine durability with reliable performance in both functional and design-focused uses.

Brass Springs

Carbon steel springs are known for their excellent tensile strength and durability. Made from high-carbon steel, they offer reliable performance and resilience under high stress, suitable for automotive, industrial machinery, agricultural equipment, and general mechanical applications. With proper coating or treatment, they provide a balance of strength, flexibility, and affordability for a wide range of uses.

carbon steel pagoda tapered compression spring

Which Industries can KENENG Springs be applied to?

As a springs manufacturer in China, the springs we produce can be used in many fields. Springs are widely used in different fields, such as Industrial/ Auto/ Motorcycle/ Electronics/ Electric power/ Toys/ Sports goods/ Machinery equipment, etc. We are a popular automotive spring manufacturer and industrial spring supplier.

For Example:

Springs are commonly used in automotive and bicycle applications to absorb shocks, providing stability and improving comfort.

Custom Springs Cases

Below are some case products displaying custom springs manufactured by KENENG.

Small Volute Spring

Small Volute Springs

Double Hook Springs

Double Hook Springs

Spiral Torsion Flat Spring Supplier

Spiral Torsion Flat Spring

Torsion Spring

Custom Made Torsion Spring

Plastic Tipped Springs

Plastic Tipped Spring

Battery Spring

Battery Springs

Tension Springs Supplier

Tension Springs

Spiral Spring

Spiral Spring

J-shaped Hook Spring Factory

J-shaped Hook Spring

W-shaped Spring

W-shaped Spring

Disc Spring Ring

Valve Spring

Custom Valve Spring

Elastic Vibration Support

Elastic Vibration Support

alien spring suppliers

Alien Springs

Carbon Steel Wire Compression Spring Supplier

Carbon Steel Wire Compression Springs

Stainless Steel Extension Spring Supplier

Stainless Steel Extension Spring

Custom Disc Spring Supplier

Custom Disc Spring

Flat Wire Spring Manufacturer

Custom Flat Wire Spring

Anti-rust Springs with Road Rust Treasure Supplier

Anti-rust Springs with Road Rust Treasure (Ruspert)

Tweezer Springs with Sharp Tips

Tweezer Spring with Sharp Tips


The Order Process of Custom Springs

Receive Inquiry → Feasibility study & quotation → Offer is accepted by customer → Confirmation on order details → Signing → Receive deposit → Design & make the die → Mold test, make ,samples → Sample approval, mass production → Receive balance → Delivery

the order process of springs

Springs Manufacturing Process

1. How is the spring made?

Spring processing: Raw material incoming inspection, Coiling, Annealing, shot peening, setting, testing& inspection, packing.

manufacturing process of springs

2. Advanced Equipment for manufacturing springs

As a spring manufacturing company. We have various specifications of a fully automatic computer spring coiling machine, computer spring grinding machine, continuous mesh belt quenching furnace, tempering furnace, spring tension and compression testing machine, spring fatigue testing machine, and a complete set of spring hot coil equipment. With complete production and testing equipment and advanced production technology, we can make many different kinds of springs to meet your requirement.

Spring Standards Ensuring High-quality Manufacturing

Standard CodeOrganizationScope / ApplicationKey Features
ASTM A228 / A229 / A313ASTM International (USA)Covers music wire, oil-tempered wire, and stainless steel wire springsSpecifies chemical composition, tensile strength, and tolerances
DIN 2093Deutsches Institut für Normung (Germany)Disc springs (Belleville washers)Defines dimensions, load ratings, and material requirements
DIN 2092Deutsches Institut für Normung (Germany)Calculation and design of disc springsProvides formulas and guidelines for spring design
JIS B2704 / B2706Japanese Industrial Standards (Japan)Helical compression and tension springsSets manufacturing tolerances and performance testing methods
EN 13906-1 / -2 / -3European Committee for Standardization (CEN)Design of helical compression, extension, and torsion springsFocuses on geometry, stress limits, and fatigue life
SAE J157SAE International (USA)Automotive spring steelsEstablishes performance criteria and testing methods
ISO 10243International Organization for StandardizationDie springsSpecifies sizes, colors, and load ratings for rectangular-section springs
GB/T 1239.2 / 1239.3Chinese National Standards (China)Helical compression and tension springsIncludes material, dimensions, and load-deflection requirements

Key Factors to Consider for Choosing a Reliable Spring Manufacturer

The performance of springs is highly depends on expert manufacturing and precise engineering. To ensure that your project is successful, work with a reliable spring manufacturer who can understand your applications and needs.

Key FactorDescription
Experience and ExpertiseProven track record in producing required spring types
Quality StandardsCompliance with ISO and other relevant certifications
Material CapabilitiesAbility to work with a wide range of materials, including alloys
Manufacturing TechnologyUse of advanced equipment for precision and consistency
Customization SupportOffers design assistance and tailored solutions
Production CapacityAbility to meet volume requirements and deadlines
PricingCompetitive pricing balanced with quality
Customer ServiceResponsive communication and effective collaboration
ReputationPositive customer reviews and strong industry standing
After-Sales SupportWarranty, technical support, and problem-solving assistance

Why Choose KENENG as a Trusted Spring Manufacturer?

  • We have a complete and scientific quality system.
  • KENENG is recognized by the industry for its product quality, integrity, and strength.
  • We have strictly QC from raw materials to output products.
  • Own factory, advanced equipment, and technology, a variety of specifications and sizes, adequate inventory, and support bulk purchases.
  • We have MSDS /ROHS/REACH/ISO 9001 certificates.
  • We are the supplier for Medtronic, Sakura, BBC, Xiaomi, Gree, ZTE, Haier, BYD, and so on. The business cooperation has been more than 10 years.

We can produce many kinds of springs, including compression springs, extension springs, torsion springs, die springs, battery springs, volute springs, disc springs, wire springs, garage door springs and custom spring products according to your needs.

Our Certifications


packing of springs
packing of springs

Packing & Delivery of Springs

Standard and custom carbide products will use specially designed boxes to ensure the safety of the goods during transportation.

KENENG can provide multiple shipping methods for your goods, for example, we can ship the goods by sea, air, and by express DHL/FedEx/UPS/TNT/Aramex, etc.

News of Springs

FAQ of Custom Springs

We can produce springs with wire diameters ranging from 0.05mm to 100mm.

  • Carbon spring steel (72A/82B/SWPB/60Si2Mn, etc.)
  • Alloy spring steel
  • Stainless steel (301/302/304/316)
  • Copper alloys (copper/brass/bronze/phosphor bronze)
  • Nickel alloys
  • Titanium alloys

We have spring force tester / hardness tester / flaw detector / tensile & compression testing machine / hardness tester / metallographic inspection / spectrometer / impedance meter / salt spray tester, we can provide relevant testing according to customer requirements.

It can be judged from aspects such as elastic stability (whether the performance is maintained after multiple deformations), precision (whether the size meets the requirements), and surface treatment (whether it is smooth without cracks and has anti-rust ability). High-quality springs undergo strict heat treatment and testing.

Key parameters include wire diameter, outer diameter, free length, number of coils, maximum load (the ultimate force it can bear), working stroke (the deformation range during normal operation), etc. It needs to be matched according to the actual force and installation space.

Avoid using it beyond the maximum load to prevent permanent deformation or breakage; select the corresponding anti-rust material in corrosive environments; regularly check for wear and deformation, and replace aging springs in time.

There is no fixed MOQ for springs, which varies depending on the dimension, material, and usage specificity. For conventional springs with a wire diameter less than 10mm, the MOQ should usually be no less than 1000pcs. Unconventional and large-scale springs will be discussed separately. The delivery is usually within 15-25 working days, as we have over a hundred spring machines that can fully guarantee the delivery of regular and urgent orders.

We conduct testing on raw materials, production lines, finished products, and shipments to ensure a yield rate of over 99%.

We will package our products to prevent rust and deformation according to customer requirements, and provide relevant advice to customers

We usually provide material reports, FAI, SST, elasticity test report, film thickness of plating testing report for free. And provide other relevant reports according to customer requirements.