Custom Torsion Springs
Stalder Spring engineers and manufactures innovative heavy-duty torsion springs and custom torsion springs.
As a type of helical spring, torsion springs exert a torque or rotary force when twisting its end along its axis. Though the name suggests otherwise, torsion springs are exposed to bending stress as opposed to torsional stress.
They have the capacity to store and release angular energy as well as statically keep a mechanism in place.
Customer Service First
2–4 Week Turnaround Time
No Job Size Too Big or Too Small
Material Types
At Stalder Spring, we think outside of the box to provide our customers with heavy-duty torsion springs that other companies may not be able to manufacture. In the past, we have even gone as far as building our own machines for specialty jobs. We don’t see ourselves as just a torsion springs manufacturer, but as a company that forms long-term working relationships with our clients.
We even keep our client springs in stock so that we can offer shorter turnaround times on future orders. Our world-class technicians and machines have the capacity to work with almost any material, but most commonly we fabricate:
Industries & Applications
Normally, torsion springs are close wound, however, they can also contain a pitch to minimize friction between the coils. Depending upon the application, torsion springs can be designed to work in a clockwise or counter-clockwise rotation. Potential applications include:
Planers
Hay Balers
Combines
Forklifts
Semis
Clothes Pins
Clipboards
Wire Diameter Ranges and Materials
At Stalder Spring Works, we pride ourselves on delivering precision-engineered springs that meet the diverse needs of our clients across industries. Our ability to customize wire diameters and material choices ensures every spring is optimized for its specific application.
- Wire Diameter Ranges: From 0.018" to 0.250" for standard sizes, with specialty sizes up to 0.562".
- Materials: Options include stainless steel, music wire, and other high-quality materials to suit various environments and performance demands.
Finishing Services & Sizing Options
At Stalder Spring, we provide a variety of finishing services. To do this efficiently, we work with third party vendors who we have developed relationships with over the years.
The finishing services we frequently provide include:
- Powder Coating
- Zinc Plating
- Oil
- High Corrosion Resistant Coatings
- Mechanical Zinc Plating
- Black Oxide
End Types and Their Applications
Selecting the appropriate end type for a custom torsion spring is crucial, as it influences the spring's performance and suitability for specific applications.
Stalder Spring Works fabricates various end types, including:
- Hinge Ends: Ideal for applications requiring a pivoting motion, such as door hinges and lid supports.
- Short Hook Ends: Commonly used in applications where space is limited, providing a compact design without compromising functionality.
- Short Offset Ends: Suitable for applications needing an offset alignment, ensuring proper torque application in constrained spaces.
- Straight Torsion Ends: Used when the spring needs to exert force in a straight-line configuration, often found in lever systems.
- Special Ends: Custom-designed ends tailored to unique application requirements, demonstrating flexibility in design and functionality.
Single vs. Double Torsion Springs
When selecting custom torsion springs for a specific application, understanding the fundamental differences between single and double torsion springs is critical. These differences impact performance, design, and suitability for various industrial and mechanical uses.
Single Torsion Springs: Precision in a Single Coil
Single torsion springs are made of a single coil designed to exert torque in one specific direction. This makes them ideal for applications requiring controlled and predictable rotational force.
Key Features:
- Design Simplicity: Single-coil design ensures straightforward integration into systems.
- Specific Torque Application: Delivers consistent force in one direction, making it suitable for simple mechanisms.
- Common Applications: Used in clothespins, hinges, ratchets, and levers where a single-direction torque is sufficient.
Advantages:
- Cost-effective for straightforward applications.
- Compact design ensures minimal space usage.
Double Torsion Springs: Power in Two Coils
Double torsion springs consist of two coils wound in opposite directions. These coils work in tandem, delivering balanced torque for applications that experience rotational forces in multiple directions.
Key Features:
- Dual-Coil Design: Provides greater torque capacity compared to single torsion springs.
- Balanced Force Distribution: Reduces stress on the spring and connected components.
- Common Applications: Found in heavy-duty equipment, industrial machinery, and custom applications.
Advantages:
- Improved durability for applications with high stress.
- Flexibility to handle complex rotational requirements.
- Enhanced lifespan due to the balanced stress distribution.
Choosing Between Single and Double Torsion Springs
The choice between single and double torsion springs depends on several factors:
- Direction of Torque: Single torsion springs suffice for unidirectional torque. For bidirectional torque or heavier loads, double torsion springs are better suited.
- Load Requirements: Double torsion springs can handle higher loads and stresses.
- Space Constraints: Single torsion springs are more compact, making them ideal for limited spaces.
Key Design Variables for Custom Torsion Springs
Torsion spring behavior is influenced by several interconnected design factors. Even small adjustments can affect torque generation, angular deflection limits, and installation requirements.
Common engineering considerations include:
- Body diameter
- Number of active coils
- Leg length
- Leg orientation
- Direction of wind
- Maximum angular travel
- Torque requirements
- Mounting geometry
Reviewing these variables as part of the development process helps ensure the spring functions as intended within the complete mechanism rather than as an isolated component.
Industries And Equipment That Utilize Torsion Springs
Custom torsion springs are used in applications that require rotational force, controlled positioning, or automatic return movement.
Common examples include:
- Access panels and enclosures
- Industrial latches
- Agricultural equipment
- Material handling systems
- Automated manufacturing equipment
- Vehicle mechanisms
- Power equipment
- Medical instruments
- Consumer hardware
- Mechanical controls
- Hinged components
Because torsion springs can be configured for both clockwise and counterclockwise operation, they can support a broad range of rotational assemblies.
Custom Torsion Spring Configurations
Many torsion spring applications require non-standard leg designs to accommodate unique attachment methods or packaging constraints. Customization allows the spring to integrate directly into existing mechanisms while maintaining required torque output and rotational response.
Available configuration options may include:
- Custom leg lengths
- Multiple leg angles
- Direction-specific winding
- Single torsion designs
- Double torsion designs
- Application-specific end forms
- Custom coil diameters
- Prototype and production quantities
This flexibility allows engineers to develop springs around the equipment rather than redesigning equipment around a standard spring configuration.
Frequently Asked Questions
What Determines the Torque Output of a Torsion Spring?
Torque output is influenced by factors such as wire diameter, coil diameter, number of active coils, lever arm length, and the amount of angular deflection applied during operation.
How Do Torsion Springs Store Energy?
Torsion springs store energy when their legs are rotated from the spring's neutral position. The spring then releases that stored energy as it returns toward its original state.
Can Torsion Springs Be Manufactured for Specific Rotation Directions?
Yes. Torsion springs can be designed for clockwise or counterclockwise operation based on the requirements of the application and installation orientation.
What Is the Difference Between Torque and Angular Deflection?
Torque is the rotational force generated by the spring, while angular deflection refers to the amount of rotation applied to the spring during operation.
ISO Certification
At Stalder Spring, we take pride in being an ISO 9001:2015 certified torsion spring manufacturer. This certification demonstrates our commitment to strict quality standards and continuous improvement across every stage of production. Whether you need custom torsion springs for specialized applications or heavy-duty torsion springs built for demanding environments, our processes ensure accuracy, durability, and reliable performance.