Long Leg Torsion Spring Manufacturer | Tight Tolerance | High Elasticity | OEM & ODM Service
Long Leg Torsion Spring Manufacturer | Tight Tolerance | High Elasticity | OEM & ODM Service
Tight Tolerance | High Elasticity | OEM & ODM Service
Product Description
As a professional Long Leg Torsion Spring manufacturer, we focus on the design and production of high-performance torsion springs engineered for applications that require extended leg geometry, precise torque control, and long-term operational stability. By utilizing advanced CNC spring coiling machines and standardized production processes, we are able to manufacture long leg torsion springs with excellent dimensional consistency, repeatability, and reliable mechanical performance.
Our long leg torsion springs are produced using high-quality carbon steel, stainless steel, and premium spring steel, carefully selected to meet different strength, elasticity, and corrosion-resistance requirements. These materials, combined with optimized spring geometry, allow the springs to deliver high elastic recovery, stable torque output, and superior fatigue resistance, even under repeated rotational movement and continuous load. The extended leg design improves leverage efficiency, enables smoother load transfer, and simplifies installation within complex or space-restricted assemblies.
To ensure dependable performance in demanding environments, our long leg torsion springs are manufactured with tight tolerance control and can undergo optional heat treatment processes such as stress relief or tempering. These treatments enhance structural stability, reduce internal stress, and extend service life when the springs are exposed to vibration, temperature variation, or long-term cyclic operation. Each production stage is closely monitored to maintain consistent quality from prototype samples to mass-produced components.
We provide complete OEM and ODM spring solutions, supporting customers from initial design consultation and prototype development through to high-volume production and long-term supply. Manufacturing can be carried out strictly according to customer drawings, 3D CAD files, or physical samples, with engineering assistance available for design optimization and cost efficiency. Our scalable production capability and stable quality system make us a reliable partner for global OEM customers seeking cost-effective, high-performance long leg torsion spring solutions.
Features
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Precision-manufactured long leg torsion spring design
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High elasticity and stable torque performance
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Tight tolerance control for demanding applications
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Carbon steel, stainless steel, and spring steel options
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Excellent fatigue resistance and long cycle life
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Custom leg length, angle, and spring rate available
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OEM & ODM manufacturing supported
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Suitable for mass production and long-term supply
Technical Parameters
| Parameter | Specification |
|---|---|
| Product Type | Long Leg Torsion Spring |
| Spring Type | Torsion Spring |
| Leg Design | Long Leg / Extended Leg |
| Manufacturing Process | CNC Spring Coiling |
| Material Options | Carbon Steel, Stainless Steel (304 / 316), Spring Steel |
| Wire Diameter | Ø0.3 mm – Ø8.0 mm (Custom Available) |
| Outer Diameter | Customized |
| Free Angle | Customizable |
| Spring Rate | According to Design Requirement |
| Torque Range | Customized |
| Tolerance | ±0.05 mm – ±0.2 mm |
| Heat Treatment | Stress Relief, Tempering (Optional) |
| Surface Treatment | Zinc Plated, Nickel Plated, Black Oxide, Polishing |
| Rotation Direction | Clockwise / Counterclockwise |
| Service Life | High Fatigue Resistance |
| Production Mode | Small Batch & Mass Production |
| Drawing Formats | PDF, DWG, DXF, STEP, IGS |
| Country of Origin | China |
Applications
Long leg torsion springs are widely used in applications that require controlled rotational force and reliable elastic performance:
Automotive Industry
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Seat adjustment mechanisms
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Door handles and latching systems
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Interior and exterior control assemblies
Industrial Equipment
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Mechanical levers and hinges
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Actuating and return mechanisms
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Load-controlled rotating components
Home Appliances
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Lid and cover mechanisms
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Control and positioning systems
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Structural spring components
Hardware & Machinery
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Tools, fixtures, and mechanical assemblies
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Custom equipment and automation systems
Customization
We provide comprehensive OEM & ODM customization services for long leg torsion springs:
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Custom wire diameter, outer diameter, and leg length
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Adjustable torque, spring rate, and free angle
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Material selection based on strength or corrosion resistance
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Surface treatment for durability or appearance
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Sample and prototype development before mass production
Our engineering team can assist with design optimization to improve performance, reduce cost, and ensure manufacturability.
Support and Services
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Technical consultation and design review
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Rapid prototyping and sample approval
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Strict quality control throughout production
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Stable long-term supply for repeat orders
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Professional export service for global customers
Packing and Shipping
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Standard packing: PE bag + export carton
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Custom packaging available upon request
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Protective packing to prevent deformation
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Shipping methods: Sea, Air, Express (DHL / FedEx / UPS)
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Worldwide shipping supported
FAQ
Q1: Can you produce long leg torsion springs according to drawings or samples?
Yes. We manufacture strictly based on customer drawings, 3D files, or physical samples.
Q2: Do you support OEM and ODM services?
Yes. We provide full OEM & ODM services, including custom design and production.
Q3: What materials are available for long leg torsion springs?
Carbon steel, stainless steel (304 / 316), and spring steel are commonly used.
Q4: Can you control tight tolerances for precision applications?
Yes. Our CNC spring coiling process ensures tight tolerance control.
Q5: Do you provide samples before mass production?
Yes. Samples are provided for approval before bulk production.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
