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Torsion Spring
Precision Hardware

Precision Hardware

Forging industrial backbone with micron precision, LH Hardware delivers end-to-end solutions for global advanced manufacturing – from precision springs, custom springs to stamping, shafts, and linear motion systems

Precision Springs

Precision Springs

High-precision springs manufactured via CNC coiling or cold forging, featuring tight tolerances (±0.003mm) and superior fatigue resistance, ideal for automotive suspension and precision instrumentation requiring consistent load-bearing performance.

Special Springs

Special Springs

Custom-engineered springs for extreme conditions, such as high-temperature (up to 300°C) or corrosive environments (titanium/hastelloy), used in aerospace hydraulics and nuclear reactor dampers

Wire Forming

Wire Forming

Multi-station cold heading process forming wire (Φ0.1-3mm) into precision parts (connectors, snaps) with ±0.02mm tolerance, serving 5G infrastructure and smart home applications

Precision Stamping

Precision Stamping

Micron-level stamping (Ra≤0.4μm) of 0.05-3.5mm metal sheets via progressive dies, producing EMI shields and battery contacts for semiconductor and EV battery modules

Precision Shafts

Precision Shafts

Ultra-precision ground shafts (Ra≤0.2μm) with ±0.002mm diameter tolerance, employed in robotic joints and CNC spindles for ±0.005mm repeatability

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Why Choose US?

✔
Custom Solutions Tailored to your exact load, space, and environmental needs
✔
ISO 9001 Certified Rigorous quality control at every stage
✔
Rapid Prototyping Tested samples available in 5-7 days
✔
Global Supply Chain Reliable delivery across North America, Europe & Asia

Contact US

E-mail: sales@lihongsprings.com
Mobile: +86 176 6501 0974
WhatsApp: +86 150 1844 0213
FAX: +86 0769-8532 4238
Add: Room 101, Building 1, No. 446 Yanglang Road, Dalingshan, Dongguan, Guangdong, China

What is Torsion Spring？

A torsion spring is an elastic component that stores mechanical energy by twisting around its axis, generating restoring torque proportional to the rotation angle. Main types include helical torsion springs, clock springs, and torsion bars.

Single torsion sprin···

Single torsion spring with gap

Single torsion spring with gap

Single torsion spring with gap

Single torsion spring with gap

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Single torsion sprin···

Single torsion spring without ···

Single torsion spring without gap

Single torsion spring without ···

Single torsion spring without gap

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Spring steel wire,si···

Spring steel wire,single torsi···

Spring steel wire,single torsion

Spring steel wire,single torsi···

Spring steel wire,single torsion

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single torsion sprin···

single torsion spring,asymmetr···

single torsion spring,asymmetrical arms

single torsion spring,asymmetr···

single torsion spring,asymmetrical arms

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double torsion sprin···

double torsion spring,center a···

double torsion spring,center arms

double torsion spring,center a···

double torsion spring,center arms

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Torsion Springs

A spring that exerts torque when twisted, storing and releasing rotational energy.

Key Advantages

Space Efficiency

Saves 40% space vs compression springs, ideal for compact applications like steering systems.

Precise Torque

±3% torque deviation, adjustable in 0.1-500N·m range for precision control..

Long Lifespan

Chrome-silicon alloy springs endure 200,000 cycles, exceeding industry standards.

Bidirectional Use

Unique helix design allows clockwise/counterclockwise rotation.

High-Temp Stability

Inconel718 maintains performance at 800°C.

How They Work

When torque is applied to the rotating end, coils tighten to store energy; releasing torque generates counter-rotational force.

Key Characteristics

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Materials - 316L stainless for medical use, 60Si2CrA alloy for heavy loads
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Torque Linearity - Premium products achieve R²>0.99 torque-angle curve
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Special Design - Double helix increases torque capacity by 35%

Key Design Factors

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Stress Analysis – FEA ensures max stress < 60% yield strength
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Fatigue Testing – 100,000 cycles at ±180° rotation required
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End Reinforcement – CNC-machined ends increase lifespan by 50%

Manufacturing Process

Material Prep

Select spring steel/stainless wire of specified diameter.

Coiling

CNC coiling machine forms helix with ±0.02mm precision.

Heat Treatment

380-450℃ tempering refines grain structure.

End Forming

Laser cutting/stamping creates specific end types.

Surface Treatment

Zinc plating/passivation/Teflon coating options.

Testing

100% inspection for torque, fatigue life and dimensions.

Packaging

VCI paper + vacuum packing prevents corrosion.

Upgrade Your Engineering with Precision Springs!​​Contact us today for a free design consultation & quote!

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