Torsion Springs

Torsion Springs for Trailers

Ace Wire Spring & Form Co., Inc. specializes in manufacturing high-quality torsion springs for trailers, designed to provide exceptional performance and durability. Our torsion springs for lift assist in trailers are crafted using the latest technology and highest-grade materials to ensure they meet the rigorous demands of various trailer applications, including utility and equipment trailers. We offer large diameter torsion springs for lift assist, providing reliable support for gates and ramps. As a certified member of the National Association of Trailer Manufacturers (NATM), we adhere to the highest industry standards, ensuring reliable support and optimal functionality for your trailer needs.

At Ace Wire Spring & Form Co., Inc., we understand that each trailer application has unique requirements. Our experienced design Engineers work closely with you to develop custom torsion springs tailored to your specific needs. From initial design and prototyping to final production, we ensure that every spring meets your exact specifications and exceeds industry standards. With our commitment to quality, precision, and customer satisfaction, you can trust Ace Wire Spring & Form Co., Inc. to provide the perfect torsion springs for your trailer applications.

Large Diameter Torsion Springs

At Ace Wire Spring & Form Co. Inc., we are excited to showcase our advanced capabilities in manufacturing large diameter torsion springs. With our new state-of-the-art machinery, we can now produce these essential components with greater precision and efficiency, catering to agriculture, power generation, and the trailer industry.

Large diameter torsion springs are crucial for applications that demand substantial torque and rotational forces. Our new equipment allows us to handle complex designs and produce springs that maintain optimal performance and reliability even under extreme conditions. This investment in cutting-edge technology not only enhances our production capabilities but also underscores our commitment to delivering high-quality solutions tailored to our customers’ specific needs.

Our ability to produce custom large diameter torsion springs means we can offer faster turnaround times without compromising on quality. Whether you need a single prototype or a large production run, Ace Wire Spring & Form Co. Inc. is equipped to meet your requirements with exceptional service. Our team of skilled craftsmen and engineers is dedicated to assisting you in designing and manufacturing springs that ensure the best performance for your applications.

Double Torsion Springs

Double torsion springs are a specialized type of torque spring consisting of two coils separated by a space to minimize friction. These springs feature a right-hand and a left-hand coil section connected together and working in parallel. The total torque exerted by a double torsion spring is the sum of the two separate sections, making them highly effective for applications requiring balanced and strong rotational forces.

To learn more about Ace Wire Spring & Form Co. Inc’s., double torsion spring capabilities, please view Other Spring Types.

Custom Services & Finishes

Take a moment to explore the variety of additional services Ace Wire Spring & Form Co. Inc., can perform on any type of spring or wire form to enhance performance and durability. From heat treatment, deburring, and painting to many more offerings, our secondary services are designed to meet your specific needs. Please include the secondary services you would like to add in the comment section of your request for quote, and our engineers will return an accurate and timely quotation with the added services. Visit our Secondary Services Page to learn more.

To review springs and wire form finishes such as e-coating, zinc plating, passivation, and many more, visit Wire Size and Material Range Page.

Design Specifications

Torsion Springs and Double Torsion Springs Design Considerations

After determining the force of torque required a designer usually estimates a suitable space or size limitations. The space should be considered approximate until the wire size and number of coils have been determined. The wire size depends solely on the torque.

Torsion Springs and Double Torsion Springs Specifications

When ordering a torsion springs or double torsion springs spring remember to give the following information as completely as possible:

Inside or Outside Diameter.
If spring works on a rod, give size of same, as spring must not bind when wound up to its limit of travel.
Free length and number of coils. If spring cannot increase in length as wound up, allow sufficient space between coils.
Right or Left Hand Wound.
Wire Size. Decimal size if possible. Material, Kind and Grade.
Style of Ends, (see illustrations). Number of turns deflection to hold given load and radius of loaded arm. This length may be the length of the arm, or the arm may be attached to a movable machine member, in which case the length to point of application of load is given.
Finish, Plain unless otherwise specified.

Torsion Springs – Double Torsion Springs Design Hints

Proportions: Spring index, inside diameter divided by wire diameter between 4 and 14 is best. The larger the ratio the more the average tolerance. Ratios of 3 or less often cannot be coiled on spring coiling machines because of arbor breakage.

Spring Index: Spring index must be used with caution.

Total coils: Torsion springs with less than 3 coils buckle and difficult to test. Best to specify to the nearest fraction in eights or quarters whenever possible.

Rods: Torsion springs should be supported by a rod running through center.

Diameter Reduction: Should compute the reduction of inside diameter during deflection. Double Torsion Springs Allowances should be considered for normal spring diameter tolerances.

Winding: Coils of a torsion spring may be closely or loosely wound. Should not be wound with coils pressed tightly together. Tight-wound springs with initial tension in coils do not deflect uniformly and are difficult to test accurately. A space between 20 to 25 percent of wire thickness is desirable.

Hand: Hand or direction of coil should be specified. Deflecting the spring in an unwinding direction causes high stress and early failure. When spring is sighted down the longitudinal axis it is right hand when direction of wire into spring takes clockwise direction or angle of coils follow angle similar to threads of bolt or screw, otherwise it is left hand. A spring must be coiled right hand to engage threads of a standard machine screw.

Arm Length: All wire in a torsion spring is active between the points where the forces are applied. Deflection of long extended arms can be calculated by allowing one third of the arm length from the point of force contact to the spring body converted in coils. If the length of arm is equal or less than one half the length of one coil it can be safely neglected in most applications.

Bends: Arms should be straight as possible. Sharp bends are stress raisers that cause early failure. Bend radii should be as large as practicable. Hooks tend to open during deflection. Hook stresses can be calculated in the same way as for extension springs.

Double Torsion: Consistence of a left-hand-wound series of coils and a series of right-hand-coils connected at center. Torque and stress calculations, each series is calculated separately as individual springs, then torques are added together but deflection are not added together.

Torsion Springs Design Formulas and Specifications

The basic formulas for torque or Moment (M) and bending stress (S) used in designing torsion springs are shown below.

In the formulas the constants 10.8 and 6.6, while strictly theoretical, give results closer to the actual values obtained.

Torsion Springs Videos

This video shows how Torsion Springs are manufactured.

For more information about torsion springs or to talk to one of our experts call 1-800-828-3353.

Manufacturing Torsion Springs

Ability to build quality and tailor product
Can be made out of carbon steel or stainless steel.
Assists when lifting heavy lids or components

Ace Advantage

ACE specializes in custom precision springs and wire forms, offering a distinct advantage by utilizing the most advanced spring design software. ACE validates each existing and new design, notifying the customer with our recommendations.