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Custom Metal Spring Manufacturer | OEM Compression, Extension & Torsion Springs

Custom Metal Springs Manufacturer for OEM & Industrial Applications

Tailored compression springs, extension springs, torsion springs, flat spiral springs, custom wire forms, stamping parts, and precision parts for global industrial applications.

spring engineering

Custom Spring Design & Risk Review

Our spring engineers support OEM customers from early concept to stable mass production. We help optimize spring design, material selection, load behavior, and fatigue life based on real production constraints.

30+ Years Experience — Prototype to Mass Production

As a direct custom spring manufacturer, we provide complete support — from spring engineering review and spring prototyping to full-scale production, surface treatment, and export packaging.

ISO-Compliant Quality & Consistent Production

Our ISO-aligned quality control system covers incoming material verification, in-process inspection, and final testing to ensure consistent load, free length, tolerance, and performance across custom springs and wire forms.

What We Solve for OEM Spring Buyers

Common challenges in custom spring manufacturing and wire form projects

Designs That Look Right on Paper — But Fail in Production

Spring designs optimized for theory often fail under real manufacturing conditions, leading to instability, rework, or performance issues during mass production.

Prototypes That Don’t Match Mass Production Behavior

Custom spring prototypes approved in testing may behave differently in full-scale production, causing late-stage redesigns, delays, and cost overruns.

Fragmented Supply Chain Across Multiple Component Vendors

Sourcing springs, wire forms, and secondary operations from multiple suppliers increases risk, cost, and coordination complexity for OEM buyers.

Functional Intent Lost Between Engineering and Manufacturing

Critical spring performance requirements are often misunderstood during technical handover, resulting in inconsistent manufacturing outcomes.

Quality Issues Discovered Only After Final Assembly

Insufficient process control and batch traceability in spring manufacturing can cause quality variation that appears only after shipment or final assembly.

Risk identification at design phase reduces production downtime.

If any of these sound familiar, you’re not alone — and they’re exactly the problems our custom spring manufacturing process is built to solve.

Custom Engineering Solutions — Beyond Standard Springs

As a professional custom wire forming and spring manufacturer based in China, we support OEM customers from early-stage prototyping through full-scale production, delivering precision-engineered spring and wire form solutions with consistent quality and efficiency.

Spring Design
Engineering review before prototyping

Custom Spring Design & Engineering

  • Compression, extension, torsion & flat spiral springs
  • Load calculation, space optimization & fatigue life analysis
  • Designs validated for real manufacturing, not just theory
Ideal for OEMs with non-standard requirements or incomplete drawings.
Wire Forms
Integrated spring & wire form components

Wire Forms & Integrated Components

  • Custom wire forms with complex bends and functional tolerances
  • Spring + wire form integrated components
  • Assembly-ready parts to simplify downstream production
One supplier instead of multiple vendors.
Secondary Finishing
Surface finishing under quality control

Secondary Operations & Finishing

  • Welding, end forming & basic assemblies
  • Surface treatments for corrosion resistance and durability
  • All processes controlled under one unified quality system
Consistent results without cross-supplier risk.
Production Scalability
Prototype samples aligned with production tooling

Prototyping-to-Production Scalability

  • Rapid prototyping for testing and validation
  • Samples aligned with mass production processes
  • No redesign surprises after approval
What you approve is what we manufacture.

Types of Springs We Can Manufacture

Custom springs and wire forms engineered to your specifications

Compression Springs

Compression Springs

  • OD 1mm – 200mm with closed, ground, or special end configurations for stability
  • Variable pitch, conical, and barrel designs for load control and space optimization
  • Shot peening and stress relief available for high-cycle and fatigue-critical applications
View Capability
Extension Springs

Extension Springs

  • Wire diameter 0.2mm – 16mm with precise initial tension control
  • Custom hook designs including German, English, crossover, and special geometries
  • Load testing performed to verify pull force at specified extension lengths
View Capability
Torsion Springs

Torsion Springs

  • Single and double torsion springs with custom leg configurations
  • Torque verification at multiple rotation angles for accurate performance
  • Close-wound or pitch-controlled bodies for space-constrained designs
View Capability
Flat Spiral Springs

Flat Spiral Springs

  • Constant force and power spring designs for compact assemblies
  • Stable output force across working range for controlled motion applications
  • Suitable for clock mechanisms, balance systems, and retraction devices
View Capability
Wire Forms & Spring Clips

Wire Forms & Spring Clips

  • Complex 2D and 3D bending using CNC wire forming equipment
  • Clips, brackets, hooks, and custom shapes for functional applications
  • Plating, powder coating, and light assembly services available
View Capability

Custom Springs

  • Don't see your spring type listed? We design and manufacture custom springs
  • Tailored to your specific performance and application requirements
  • Engineering review and prototyping prior to mass production
Request Custom Spring Design →

Custom Spring Manufacturing Process Advantages

End-to-end custom spring manufacturing process supporting OEM and industrial applications, with controlled engineering, prototyping, CNC production, surface treatment, and quality inspection to ensure consistent performance, full batch traceability, and scalable mass production.

01

Design Optimization & Simulation

Performance, tolerance, and manufacturability review before production decisions.

Design Review
02

Material Selection & Engineering

Spring steel, stainless steel, and alloys selected based on real application conditions.

Material Selection
03

Rapid Prototyping & Testing

Production-intent prototypes used to validate performance before mass production.

Rapid Prototyping
04

Precision CNC Coiling & Forming

Repeatable CNC machine processes for stable and scalable production.

CNC Forming
05

Surface Treatments & Finishing

Surface treatments applied for corrosion resistance and durability control.

Surface Treatments
06

Quality Control & Traceability

Inspection, testing, and batch-level traceability across production runs.

Quality Control
Spring prototyping inspection Production-intent materials and tooling logic validation
Mass production behavior validation Samples reflecting real-world mass production behavior

Spring Prototyping That Matches Production

Approved spring samples behave the same way in repeat production

Our prototyping approach is built to answer one key procurement question: Will the approved sample behave the same way in mass production? We produce custom spring prototyping using production-intent materials, tooling logic, and process parameters — not lab-only shortcuts.

This allows engineering and sourcing teams to achieve mass production validation of load behavior, tolerance stability, and manufacturability before committing to tooling, significantly reducing redesign risk.

What buyers validate at prototype stage
  • Performance consistency under real load conditions
  • Tolerance stability in repeatable processes
  • Feasibility for scalable mass production
Why it matters: Approved samples reflect real production behavior — reducing redesign risk after approval.
View Prototyping & Sampling Process →

Spring & Wire Form Applications

Custom spring and wire form applications across industrial, consumer, and OEM products

Automotive spring applications

Automotive & Mobility Systems

Springs used for load control, return force, and vibration management in vehicle systems.

Compression springs, torsion springs, wire forms
Industrial machinery springs

Industrial Equipment & Machinery

Functional springs supporting motion control and mechanical stability.

Heavy-duty compression springs, extension springs
Consumer product spring mechanisms

Consumer Products & Mechanisms

Springs designed for repeat use, safety, and user interaction.

Extension springs, torsion springs, custom wire forms
Medical device precision springs

Medical & Healthcare Devices

Precision springs for controlled force and compact assemblies.

Precision compression springs, micro wire forms
Electronic component contact springs

Electrical & Electronic Components

Springs used for contact force, positioning, and conductivity support.

Contact springs, custom wire forms
Hardware door and window systems

Hardware & Door / Window Systems

Springs for balancing, return action, and load compensation.

Extension springs, torsion springs, flat springs

Custom Spring Engineering Applications

Explore our application-driven spring solutions engineered to meet the stringent technical requirements of leading global industries.

Automotive Spring Applications

Suspension and brake springs

Chassis & Suspension Springs

Heavy-duty compression springs designed for vehicle suspension systems, supporting maximum loads and dampening road vibrations.

View Automotive Solutions →
Engine valve springs

Engine Valve Springs

High-precision springs capable of operating under high-frequency cycles and extreme temperatures in powertrain systems.

View Valve Springs →

Medical Device Spring Applications

Medical instrument springs

Surgical Instrument Springs

Micro-precision springs manufactured from biocompatible stainless steel for handheld surgical and dental devices.

View Medical Solutions →
Diagnostic equipment springs

Diagnostic Equipment Springs

Engineered for reliable, repeatable performance in scanning and imaging machinery requiring precise actuation.

View Diagnostic Springs →

Industrial Equipment Spring Applications

Valve springs

Industrial Valve Springs

Support return and assist functions in mechanical and fluid control valves used in heavy industrial equipment.

View Valve Springs →
Conveyor springs

Conveyor Tension Springs

Applied in material handling systems to maintain belt or chain tension under continuous 24/7 industrial operation.

View Conveyor Solutions →

Aerospace Spring Applications

Landing gear springs

Landing Gear Springs

Extreme-performance springs designed for high impact ratios and weight constraints in aircraft landing systems.

View Aerospace Solutions →
Cabin interior springs

Interior Component Springs

Lightweight springs for cabin seating, bins, and latches ensuring passenger comfort and safety standards.

View Interior Springs →

Consumer Electronics Spring Applications

Electronic contact springs

Battery Contact Springs

Plated wire forms ensuring stable electrical conductivity in mobile devices, remote controls, and laptops.

View Electronics Solutions →
Micro mechanism springs

Miniature Actuation Mechanisms

Ultra-fine torsion and extension springs for cameras, keyboards, and tactical human interfaces.

View Micro Solutions →

Consumer Product Springs Applications

Appliance springs

Household Appliance Springs

High-reliability springs for washing machines, dishwashers, and small kitchen appliances providing long service life.

View Consumer Solutions →

Window & Door Hardware Spring Applications

Door latch springs

Latch & Lock Springs

Specialized torsion and compression springs for commercial and residential door hardware ensuring smooth security actuation.

View Hardware Solutions →
Window springs

Window Counter-balance Springs

Flat spiral and constant-force springs supporting smooth window operation and precise vertical positioning.

View Window Springs →

Quality Control Process & Testing Capabilities

Each spring is inspected and tested within a controlled quality framework to ensure reliable performance, dimensional accuracy, and compliance with approved specifications for custom springs and wire forms used in OEM and industrial applications.

01

Raw Material Inspection

Chemical composition and mechanical property testing for all incoming wire.

02

In-Process Inspection

Real-time monitoring of dimensions during high-speed production cycles.

03

Functional Testing

Dynamic load testing to verify precise force characteristics and spring rate.

04

Dimensional Verification

Automated optical systems ensure sub-micron accuracy for critical tolerances.

05

Documentation & Traceability

Full material certifications and inspection reports provided with every batch.

Quality issues are addressed during material selection and validation — not discovered after production starts. See How We Control Spring Quality
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Why Buyers Choose Us for Custom Industrial Spring

Procurement-driven reasons that reduce coordination risk and decision uncertainty — not sales promises.

Amazon Google Tesla Volkswagen Honeywell Tesla
J.M.

J.M.

Procurement Manager | Industrial

“Consistency is what we watch. After the first few POs, the springs behaved the same across batches. Saved a lot of internal back-and-forth.”
Benefit: Fewer incoming issues
S.K.

S.K.

Mechanical Engineer | Automation

“The production parts matched the same load behavior as prototypes. Early feedback on tolerances prevented late-stage changes.”
Benefit: No redesign loops
L.W.

L.W.

Sourcing Lead | Consumer Goods

“Communication was straightforward. Lead times were clear and updates were predictable, making coordination easy for our team.”
Benefit: Easier supplier management

Why Buyers Choose Us for Custom Industrial Spring

Procurement-driven reasons that reduce coordination risk and decision uncertainty — not sales promises.

Fewer Surprises After Approval

Approved samples behave consistently in repeat orders.

Easier Supplier Management

Clear communication, stable processes, predictable follow-up.

Lower Internal Coordination Cost

Less back-and-forth between engineering, sourcing, and production.

Robert H. Procurement Manager, Industrial Equipment OEM

“What mattered most for us was consistency. After the first few orders, quality stayed the same and we didn’t have to recheck every batch. That saved a lot of internal back-and-forth.”

Michael C. Mechanical Engineer, Automation Systems

“The samples behaved the same way in production as they did during testing. Once the design was approved, there were no unexpected issues later.”

Sarah J. Sourcing Lead, Consumer Products Manufacturer

“Communication was straightforward and timelines were clear from the beginning. That made supplier coordination much easier on our side.”

ISO-aligned manufacturing processes  ·  Multi-industry OEM applications  ·  Export-ready global delivery

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Engineering Case Studies

Real-world custom spring and wire form projects from prototype to production

Industrial return spring application study
Industry: Industrial Equipment

Case 01 — Industrial Equipment Return Spring

Problem: Existing spring design caused unstable return force during repeated operation.
Engineering Decision: Redesign spring parameters based on load cycle and installation space.
Solution: Custom compression spring with adjusted rate and controlled tolerance.
Outcome: Stable performance across production batches with reduced failure rate.
Consumer product torsion spring assembly
Industry: Consumer Products

Case 02 — Consumer Product Torsion Spring Assembly

Problem: Multiple suppliers increased assembly inconsistency and lead time.
Engineering Decision: Integrate spring and wire form into a single component.
Solution: Custom torsion spring with integrated wire form assembly.
Outcome: Simplified sourcing and improved production consistency.
Medical device precision spring prototyping
Industry: Medical Device

Case 03 — Medical Device Precision Spring

Problem: Limited space required precise force control and repeatability.
Engineering Decision: Validate spring behavior through prototyping before production.
Solution: Precision compression spring produced using production-intent processes.
Outcome: Approved for mass production with predictable performance.

OEM Spring Projects & Case Studies

Real-world custom spring solutions engineered for demanding applications

Automotive Suspension Springs

Automotive Suspension Springs

Industry: Automotive OEM
Spring Type: Heavy-duty compression springs
Challenge: High-load capacity with compact design for electric vehicle platform
Solution: Variable pitch compression springs with shot peening for extended fatigue life
Medical Device Springs

Medical Device Springs

Industry: Medical Equipment
Spring Type: Precision torsion springs
Challenge: Biocompatible materials with consistent torque control for surgical instruments
Solution: Stainless steel 316L torsion springs with tight tolerance control (±0.05mm)
Industrial Machinery Springs

Industrial Machinery Springs

Industry: Heavy Machinery
Spring Type: Large compression springs
Challenge: Extreme load requirements (10,000+ cycles) in harsh environments
Solution: Chrome silicon alloy springs with zinc phosphate coating for corrosion resistance
Electronics Battery Contact Springs

Electronics Battery Contact Springs

Industry: Consumer Electronics
Spring Type: Custom wire forms & contact springs
Challenge: Miniature size with reliable electrical conductivity and consistent contact force
Solution: Beryllium copper wire forms with gold plating for optimal conductivity
FAQ & Contact Form Engineering FAQ & Contact Section

Have Final Questions Before Moving Forward?

Common procurement questions — or discuss your requirements directly with an engineer.

MOQ isn’t fixed upfront. For new projects, fooaima spring usually start with small prototype quantities to confirm performance and manufacturability. Production volumes are discussed only after samples are approved, so we’re not locked into a large commitment too early.
In most cases, prototypes are ready within 3-5 working days. The timeline mainly depends on design complexity and material availability. What matters more to us is that the sample reflects real production behavior, not just speed.
Yes. Fooaima have worked on projects where only a physical sample or partial information was available. As long as the functional requirements are clear, engineering feedback usually comes early, which helps avoid misunderstandings later.
From our experience, samples only make sense if they behave the same way in production. Using production-intent processes during prototyping helped us avoid surprises after approval and reduced internal rework on our side.
Confidentiality was one of our early concerns as well. Drawings and files are shared only with the engineering and production teams involved in the project. For sensitive designs, NDA can be arranged before any technical review, which made internal approval easier on our side.

Send Your Requirements for Engineering Review

Our engineers review each inquiry based on manufacturability, production stability, and long-term supply feasibility — not just pricing.

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Contact Custom Spring Manufacturer

Request a quote for custom springs and custom wire forms — share a drawing, sample, or performance requirements (load, travel, life cycle). We support prototyping, pilot runs, and scalable mass production.

  • Engineering feedback within 24 hours
  • NDA available for drawings & projects
  • Prototype-to-production support
Engineering Review

Send Your Requirements for Engineering Review

Our engineers review each inquiry based on manufacturability, production stability, and long-term supply feasibility — not just pricing.

Drag & drop or Click to upload

Max 20MB per file
Engineering FAQ & Contact Section