About - Fooaima Custom Spring Manufacturing

A Custom Spring Manufacturer Focused on Real-World Performance

We manufacture custom springs for applications where load behavior, consistency, and long-term reliability matter more than appearance.

Custom springs only

Engineering-driven decisions

Designed for real assemblies, not just drawings

Send a Drawing for Review

Engineer reviewing technical drawings and spring components

Brand Story

Fooaima did not begin as a branding-driven company. Our approach was shaped through years of international projects where small components caused outsized problems, especially in custom spring manufacturing projects where behavior consistency matters — not because they broke, but because they behaved inconsistently in real use.

Over time, this experience led us to focus less on scale or speed, and more on predictability, responsibility, and long-term stability in custom spring manufacturing.

As a result, we tend to slow down decisions when load conditions are unclear, and we do not proceed to production until performance intent is technically defined. This approach may feel conservative, but it prevents costly corrections later.

Factory workshop and equipment environment

Company Overview

Fooaima is a custom spring manufacturing company based in China, serving engineers and buyers across industrial and consumer applications.

We specialize in made-to-order springs and wire forms, working directly from drawings, load requirements, and real usage conditions.

Rather than positioning ourselves by size or volume, we aim to be a predictable and technically responsible manufacturing partner.

What Buyers Worry About When Sourcing Custom Springs

These are questions we hear repeatedly from engineers and buyers when projects move from drawings into real production.

Will the spring rate behave the same in real assemblies as it does in calculations?

Will different batches feel and perform consistently over time?

If something fails, can the supplier explain why — not just replace parts?

Will every design revision require re-validation from zero?

These concerns rarely come from broken springs. They come from inconsistent behavior across production and usage.

Where Custom Spring Projects Usually Go Wrong

Load defined without considering working travel
Spring rate calculated but not verified after forming
Tolerance stack-up ignored in real assemblies
Batch-to-batch behavior drifting over time

In custom spring projects, issues rarely appear on the drawing. They surface later — during assembly, testing, or field use.

Technical drawings and CAD analysis with annotations

See related case examples →

Our Role in Your Product Lifecycle

Design & Definition

We help clarify load intent, working conditions, and tolerance priorities before production decisions are locked.

We often ask how the spring will actually be constrained in the assembly, not just what load it should reach.

→ Spring Design Support

Production & Validation

Our role is to ensure spring behavior matches real use, not just initial calculations or nominal values.

We pay attention to behavior drift after forming, not only first-article inspection results.

→ Quality Control & Testing

Ongoing Supply

We maintain technical context across batches, revisions, and volume changes to avoid repeated learning costs over time.

We preserve historical decisions and context so revisions don't restart technical discussions from zero.

→ Long-Term Supply Management

Technical drawings with physical spring samples

Testing and assembly verification process

How We Think About Spring Performance

A spring that "meets drawing" but fails in assembly is not acceptable to us.

Spring behavior matters more than nominal values

Consistency matters more than one-time optimization

Real usage conditions matter more than theoretical assumptions

When these priorities conflict, we choose performance consistency — even if it slows down decisions. This trade-off is intentional and non-negotiable in our projects.

How We View Manufacturing Capabilities

We do not believe manufacturing capability is defined by the number of machines or how many processes fit on a checklist.

For custom springs, capability means understanding how forming, heat treatment, and finishing affect behavior — and making consistent decisions across production.

That is why detailed capability listings are kept outside this page. Here, we focus on how we think, not what we list.

View Our Manufacturing & Engineering Capabilities →

Our Working Culture

Decisions are documented, not left to memory

Drawings are questioned when usage context is unclear

Consistency is prioritized over one-time optimization

Historical context is preserved across projects

We are willing to push back when performance requirements conflict with usage reality

Engineers discussing and marking technical drawings

Company Facts

Years in custom spring projects

25+ Years

Team size

35+ People (Engineering & Project Teams)

Primary export markets

US · Europe · Australia

Typical prototype lead time

3–5 Days (after requirements confirmed)

Typical production lead time

1–4 Weeks (depending on complexity & volume)

Typical order profile

Low-to-mid volume, high variation projects

Start with a Clear Technical Conversation

If you are evaluating a custom spring for a real application, we are open to reviewing drawings, load requirements, and usage conditions before any quotation is discussed.

Send a Drawing for Review Discuss Your Application

Engineer working with technical drawings and components