Custom Double Torsion Spring Manufacturer
Precision-engineered double torsion springs designed for balanced torque, increased load capacity, and reliable rotational performance for demanding OEM and industrial applications.
OmniCoil Spring Works Inc. designs and manufactures custom double torsion springs built to deliver balanced rotational force, increased load capacity, improved stability, and long-lasting performance. Whether you require a prototype, replacement spring, or high-volume OEM production, our experienced team provides spring design support and manufacturing expertise to deliver double torsion spring solutions tailored to your torque, dimensional, and application requirements.
✅ ISO 9001: 2015 Certified
✅ Custom Designed Springs
✅ Prototype to Production
✅ Made in Canada
Custom Double Torsion Springs for Higher Torque & Balanced Performance
Double torsion springs are precision-engineered rotational springs consisting of two torsion spring coils connected by a center bridge. This dual-coil configuration allows the spring to distribute torque more evenly across both coils, providing improved balance, greater stability, and higher rotational force compared with a conventional single torsion spring.
Double torsion springs are commonly selected for applications requiring synchronized movement, increased torque capacity, and consistent force delivery throughout repeated operating cycles. Their balanced design makes them ideal for mechanisms where reliability, space efficiency, and long-term performance are critical.
At OmniCoil Spring Works Inc., we manufacture custom double torsion springs based on application-specific requirements such as torque output, rotation angle, leg configuration, dimensions, material selection, and operating environment. From prototype development to production quantities, our team provides the manufacturing expertise and technical support needed to deliver reliable double torsion spring solutions built for demanding applications.
Why Choose Custom Double Torsion Springs?
When an application requires greater torque, improved stability, or balanced rotational force, a double torsion spring is often the preferred solution.
Key Benefits
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Higher torque capacity than a comparable single torsion spring
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Balanced force distribution across two coil bodies
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Improved stability during operation
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Reduced stress concentration for longer service life
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Custom leg configurations and bridge designs
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Suitable for prototype, short-run, and high-volume production
Common Applications
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Automotive mechanisms
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Industrial machinery
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Agricultural equipment
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Counterbalance systems
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Heavy-duty hinges
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Mechanical linkages
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Packaging machinery
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Medical devices
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Aerospace components
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Defence equipment
Whether you require a replacement spring, a custom-engineered component for a new product, or a production-ready OEM solution, OmniCoil designs and manufactures double torsion springs that deliver dependable performance and long-term reliability.
Engineered for Your Application
No two applications are identical. Every double torsion spring is engineered by considering factors such as:Required torque output, Rotation angle, Load distribution, Available installation space, Leg configuration, material selection, Operating environment, and expected cycle life.
How Double Torsion Springs Work
Understanding the Engineering Behind Double Torsion Springs
A double torsion spring consists of two torsion spring coils connected by a center bridge. When rotational force is applied, both coil sections work together to store energy and generate torque, allowing the spring to provide a more balanced and controlled rotational response.
Unlike a single torsion spring that applies force from one coil body, a double torsion spring distributes the load across two connected coils. This design can improve stability, increase torque capacity, and provide more consistent performance in applications requiring synchronized movement.
At OmniCoil Spring Works Inc., each double torsion spring is engineered based on the application's torque requirements, operating angle, available space, material properties, and expected service life.
Key Design Considerations for Double Torsion Springs
Design Factor | Effect on Performance |
|---|---|
Wire Diameter | Determines strength and torque capacity |
Coil Diameter | Influences flexibility and stress levels |
Number of Coils | Affects spring rate and available rotation |
Leg Length | Controls installation and force transfer |
Material Selection | Determines strength, fatigue resistance, and temperature capability |
Operating Angle | Affects torque output and service life |
Manufacturing Tolerance | Ensures consistent performance |
Key Design Elements of a Double Torsion Spring
Rotation & Torque
When the legs rotate, the coils resist the applied movement and generate restoring torque.
The amount of torque produced depends on:
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Wire diameter
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Coil diameter
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Number of coils
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Material strength
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Rotation angle
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Spring geometry
Dual Coil Bodies
The two coil sections work together to generate rotational force.
Benefits:
✓ Increased torque capacity
✓ Balanced force distribution
✓ Improved mechanical stability
✓ Reduced load concentration
Center Bridge
The center bridge connects both coil sections and transfers rotational force between them.
The bridge design affects:
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Load sharing
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Overall spring balance
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Installation requirements
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Mechanical performance
Leg Configuration
The spring legs transfer torque from the coils into the application.
Leg design affects:
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Mounting method
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Force direction
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Available installation space
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Overall efficiency
Common configurations include:
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Straight legs
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Tangential legs
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Offset legs
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Custom formed legs
Double Torsion Spring Types & Leg Configurations
Double Torsion Springs
The most common torsion spring design, featuring a single coil body with two legs that generate rotational force when deflected.
Ideal For:
✓ Hinges
✓ Mechanical linkages
✓ Latches
✓ Industrial equipment
Straight Leg Configuration
A simple and versatile leg design used when direct force transfer and easy installation are required.
Ideal For:
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General mechanical assemblies
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Industrial equipment
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Consumer products
Tangential Leg Configuration
Legs extend tangentially from the coil, providing efficient force transmission and smooth rotational movement.
Ideal For:
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Machinery
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Automotive components
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Precision equipment
Offset Leg Configuration
Legs are formed at specific angles or offsets to accommodate limited installation space or specialized mounting requirements.
Ideal For:
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Compact assemblies
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Custom equipment
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OEM applications
Custom Leg Configurations
When standard leg styles don't meet your design requirements, OmniCoil can manufacture fully customized leg geometries based on your drawings, CAD files, or engineering specifications.
Custom Options Include:
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Special leg angles
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Custom bends
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Multiple leg lengths
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Formed ends
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Application-specific designs
Choosing the Right Leg Conf.
Our experienced team provides application guidance and spring design support to help select the most suitable leg configuration based on your requirements, including mounting conditions, rotational movement, space limitations, and operating demands.
Engineering Factors to Consider:
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Required torque
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Direction of rotation
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Available installation space
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Mounting method
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Angular travel
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Cycle life
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Assembly requirements
A successful double torsion spring design depends on balancing torque requirements, spring geometry, material properties, and operating conditions. OmniCoil Spring Works Inc. uses proven manufacturing expertise and technical support to produce double torsion springs designed for reliable performance and long service life.
Double Torsion Spring Materials
Selecting the Right Material for Strength, Durability & Performance
Material selection plays a critical role in the performance and longevity of a double torsion spring. The right material influences torque capacity, fatigue resistance, corrosion resistance, temperature capability, and overall service life.
At OmniCoil Spring Works Inc., we manufacture custom double torsion springs using a wide range of high-quality spring materials chosen based on application requirements, operating conditions, performance expectations, and environmental challenges.
Double Torsion Spring Material Comparison
Material Name | Strength Rating | Corrosion Resistance Rating | Max Operating Temperature | Typical Application | Key Benefits |
|---|---|---|---|---|---|
Titanium Alloys | 4 | 5 | Up to 400°C (752°F) | Aerospace, defence, medical implants, marine systems | Lightweight, outstanding corrosion resistance, high strength-to-weight ratio. |
Music Wire (ASTM A228) | 5 | 2 | Up to 120°C (250°F) | General industrial equipment, automotive components, consumer products, machinery | Highest tensile strength, excellent fatigue life, economical, ideal for dynamic applications. |
Phosphor Bronze | 3 | 4 | Up to 200°C (392°F) | Electrical contacts, precision instruments, switches | Excellent electrical conductivity with good corrosion resistance. |
Chrome Silicon (ASTM A401) | 5 | 2 | Up to 250°C (482°F) | Racing, heavy-duty automotive, aerospace, mining equipment | Exceptional fatigue resistance and high-load performance. |
Stainless Steel 302 | 4 | 4 | Up to 290°C (554°F) | Food processing, medical devices, marine equipment, electronics | Excellent corrosion resistance with high strength and durability. |
Material Selection Guide
Music Wire
The most widely used spring material, offering exceptional tensile strength and fatigue performance for general-purpose torsion spring applications.
Ideal For:
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Industrial machinery
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Automotive components
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Consumer products
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High-volume production
Oil Tempered Wire
Provides excellent toughness and durability for larger torsion springs subjected to repeated rotational loading.
Ideal For:
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Agricultural equipment
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Heavy machinery
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Construction equipment
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Industrial applications
Stainless Steel (302, 316 & 17-7 PH)
Offers excellent corrosion resistance while maintaining reliable mechanical performance in demanding environments.
Ideal For:
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Food processing
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Medical equipment
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Marine environments
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Outdoor applications
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Chemical processing
Chrome Silicon & Chrome Vanadium
Designed for high-stress, high-cycle applications where superior fatigue resistance and long service life are essential.
Ideal For:
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Automotive systems
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Industrial automation
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Heavy-duty equipment
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Performance applications
Specialty Alloys
Materials such as Inconel X-750 and Phosphor Bronze are selected for applications requiring exceptional corrosion resistance, elevated temperature capability, or electrical conductivity.
Ideal For:
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Aerospace
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Oil & gas
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Electrical systems
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Chemical processing
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Extreme operating environments
Not Sure Which Material Is Right?
The best double torsion spring material depends on more than strength alone. Factors such as torque requirements, operating cycles, temperature exposure, corrosion resistance, and the environment where the spring will operate all influence the ideal material selection.
Our experienced team can provide material selection guidance and help identify the most suitable spring material for your application's performance, durability, and service requirements.
Double Torsion Spring Specifications
Precision Specifications for Custom Double Torsion Springs
Every custom double torsion spring is designed and manufactured around specific performance and dimensional requirements. Accurate specifications ensure the spring delivers the required torque, fits correctly within the assembly, and achieves reliable performance throughout its intended service life.
At OmniCoil Spring Works Inc., we manufacture custom double torsion springs based on engineering drawings, CAD models, sample parts, or application requirements. Our team uses these specifications to produce springs with consistent dimensions, reliable torque performance, and the quality required for demanding applications.
Specification | Purpose | Custom Options |
|---|---|---|
Wire Diameter | Determines spring strength, torque capacity, and fatigue life. | Manufactured to your required dimensions. |
Inside Diameter (ID) | Ensures proper fit over shafts, pins, or mandrels. |
Fully customizable. |
Outside Diameter (OD) | Defines the overall spring size and installation clearance. | Engineered to fit your assembly. |
Body Length | Determines the active coil length and available rotation. | Custom body lengths available. |
Number of Coils | Influences spring rate, torque output, and angular deflection. | Designed for your performance requirements. |
Leg Length | Transfers torque from the spring to the application. | Standard and custom leg lengths available. |
Leg Configuration | Determines mounting, load direction, and force transmission. | Straight, tangential, offset, and custom designs. |
Rotation Angle | Defines the spring's working angular travel. | Optimized for your application. |
Torque Requirements | Specifies the required rotational force at a given angle. | Engineered to meet performance specifications. |
Material | Affects strength, fatigue resistance, corrosion resistance, and temperature capability. | Wide range of spring materials available. |
Surface Finish | Improves corrosion resistance, wear protection, and durability. | Multiple finishing options available. |
Manufacturing Tolerances | Ensures dimensional accuracy and consistent production quality. | Precision manufacturing to customer specifications. |
The performance of a double torsion spring depends on the interaction between its two coil bodies, bridge design, leg geometry, material properties, and operating conditions. Proper design and manufacturing precision help ensure consistent torque output, balanced operation, and long-term durability.
Double Torsion Spring Applications
Reliable Double Torsion Springs for Demanding Mechanical Applications
Double torsion springs are used in applications where consistent rotational force, balanced torque, and increased load capacity are required. Their dual-coil design enables synchronized movement, improved load distribution, and smoother operation in mechanical systems where reliability and repeatable performance are critical.
At OmniCoil Spring Works Inc., we manufacture custom double torsion springs for OEMs and manufacturers across industries that demand precision, durability, and long-term performance.
Automotive & Transportation
Extension springs are widely used in automotive systems where controlled tension and reliable movement are essential.
Common applications:
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Vehicle mechanisms and assemblies
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Latching systems
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Seat mechanisms
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Door and closure systems
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Transportation equipment
When to Choose a Double Torsion Spring
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Higher torque output
02
Balanced rotational movement
03
Reduced mechanical complexity & Improved stability
04
Reliable operation over repeated cycles
05
Custom designs for limited installation space
Choosing Between Single and Double Torsion Springs
Both single and double torsion springs are designed to provide rotational force, but their configurations and performance characteristics make them suitable for different applications.
A single torsion spring is typically used for standard rotational mechanisms where a single coil can provide the required torque. A double torsion spring uses two connected coil bodies to deliver balanced torque, improved load distribution, and synchronized movement for applications requiring higher rotational force and increased stability.
Understanding the differences between single and double torsion springs helps engineers, designers, and manufacturers select the right spring solution for performance, reliability, and long-term durability.
Compression
Pushing Force
Extension
Pulling Force
Torsion
Rotational Force
Double Torsion
Rotational Force
Twist • Compress • Extend — Precision Springs for Every Application