What Is a Flat Wire Spring?
Flat wire springs are made from rectangular or square cross-section wire, providing higher energy storage and improved fatigue resistance compared to round wire springs.
They are ideal for applications where space is limited but high performance is required.
At Hootai, we specialize in custom-manufacturing flat wire compression and torsion springs to meet your exact specifications.
- Custom Flat Wire Spring Manufacturing Capabilities
With over 40 years of metal forming experience, Hootai provides complete custom spring solutions, including:
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Flat wire compression, torsion, and special-shaped springs
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Wire thickness range: 0.3mm – 4.0mm
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Materials: stainless steel (SUS304/316), carbon steel, spring steel, titanium alloy
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Processes: forming, heat treatment, welding, grinding, and surface finishing
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Fast prototyping and small-batch production
Each spring is engineered to ensure consistent strength, precision, and durability — ideal for demanding applications.
High-Quality Materials and Surface Finishing Options
We carefully select materials and finishes to match your performance and aesthetic needs.
Available finishing options include:
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Nickel / Zinc plating – corrosion resistance
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PTFE (Teflon) coating – non-stick, colored options
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WS₂ (Tungsten Disulfide) coating – high wear resistance, gray finish
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Electropolishing / Passivation – improved smoothness and appearance
These treatments not only enhance appearance but also minimize weld marks and extend the spring’s service life.
Applications of Flat Wire Springs
Our custom flat wire springs are widely used in:
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Automotive systems: brakes, clutches, seat mechanisms
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Medical devices: precision, lightweight, and fatigue-resistant components
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Electronics: connectors, relays, contact mechanisms
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Industrial equipment: locking, damping, and load control assemblies
No matter the application, Hootai provides engineering support to help optimize your design for performance and manufacturability.
Flat Wire Spring for Endoscope System
One of our clients required a custom 304 stainless steel flat wire spring for use inside an endoscope system.
The spring needed to be both conductive and corrosion-resistant, while maintaining excellent elasticity under repeated bending and twisting.
To achieve these properties, we selected 304 stainless steel flat wire and applied nickel plating to improve conductivity and surface hardness.
The spring was used as a conductive flexible component within the endoscope’s outer tube, ensuring smooth operation and signal transmission even under tight assembly tolerances.
This project demonstrated Hootai’s capability in producing precision flat wire springs for highly space-limited and performance-demanding applications.
Why Choose Hootai as Your Flat Wire Spring Supplier?
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40 years of manufacturing experience
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One-stop solution: spring forming + stamping + welding + surface treatment
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Support for custom designs and prototypes
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Fast response and flexible order quantities
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Proven quality trusted by international clients
When you work with Hootai, you get precision manufacturing, responsive service, and dependable quality — all under one roof.
Related Spring products
Start Your Custom Flat Wire Spring Project Today
Send us your drawing, material requirements, and quantity — our engineering team will review your design and provide a quotation within 24 hours.
📎 Acceptable files: PDF, STEP, or 3D model
📦 Production lead time: 2–4 weeks for prototypes
Flat wire springs have a rectangular cross-section, providing higher load capacity and better fatigue life in limited spaces.
Yes, we support low-volume production and quick-turn prototypes.
Nickel/Zinc plating, PTFE coating, WS₂ coating, passivation, and more.
Yes, our engineers can assist with design optimization based on your 3D models or drawings.
Automotive, medical, electronics, industrial automation, and custom hardware.