Metal Shafts-Precision Spring

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

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

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

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

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

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

Why Choose US?

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Custom Solutions Tailored to your exact load, space, and environmental needs

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ISO 9001 Certified Rigorous quality control at every stage

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Rapid Prototyping Tested samples available in 5-7 days

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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

Key Advantages

High Load Capacity

42CrMo alloy shafts withstand 1000MPa alternating stress.

Precision Transmission

Grinding achieves ≤0.003mm radial runout.

Extended Lifespan

Surface quenching increases fatigue life 3-5x.

Lightweight

Hollow designs reduce weight 40% with equal torque capacity.

Corrosion Resistance

Stainless steel shafts pass 1000+ hour salt spray tests.

How They Work

Efficiently transmits rotational power from prime movers to driven components while withstanding combined bending/torsional loads through precise geometry and surface properties.

Key Characteristics

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Size Range - 1-500mm diameter, up to 10m length

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Precision Class - Up to IT5 grade (≤0.005mm tolerance)

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Speed Capacity - G2.5 dynamic balance for up to 30000rpm

Key Design Factors

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Strength Analysis – Fatigue verification per ISO 6336

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Heat Treatment – Tempering HRC28-32, case hardening HRC50+

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Fit Tolerance – h6/k6 bearing fits ensure optimal assembly

Manufacturing Process

Material Prep

Spectrometry verifies alloy composition.

Rough Machining

Turning removes 90% stock with 0.5mm allowance.

Heat Treatment

Quenching/tempering for core hardness.

Finish Turning

CNC lathes achieve IT7 precision.

Grinding

Cylindrical grinders reach IT5 critical dimensions.

Surface Hardening

Rolling/induction hardening increases hardness.

Balancing

High-speed balancing to G2.5 grade.

Rust Prevention

Phosphating/chromating/Dacromet coatings.

Why Choose US?

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What is Metal Shafts？

ISO9001 Factory Customized Mac···

ISO9001 Factory Customized Mac···

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Gear Driver Shaft Sheet Metal ···

Gear Driver Shaft Sheet Metal ···

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Customized 304 Stainless Steel···

Customized 304 Stainless Steel···

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Metal Shafts

Key Advantages

High Load Capacity

Precision Transmission

Extended Lifespan

Lightweight

Corrosion Resistance

How They Work

Key Characteristics

Key Design Factors

Manufacturing Process

Material Prep

Rough Machining

Heat Treatment

Finish Turning

Grinding

Surface Hardening

Balancing

Rust Prevention

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