Power Springs

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Wave Springs

Wave Springs

Our wave springs can be used in almost any application. Savings of up to 60% during installation & smaller assemblies.

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Retaining Rings

Retaining Rings

Multiple types of Retaining Rings are available & are widely applied to Pressure Gauge, Gear Assembly, Connector,....etc.

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Power Springs | Spring Manufacturer - Tech Spring / TSI / TSMC

Tech Spring Manufacturing Corp. is one of the prime Power Springs | spring manufacturers based in Taiwan since 1987.

ISO accredited and manufacturing all types of springs, stamping molding and assembly of metal parts to Europe, USA, UK & Australia. We are specialized in the manufacturing, designing and analyzing all kinds of spring, such as wave springs (including of compression wave spring, wave single turn and nested spring), linear expander, retaining rings (including of internal, external, single turn and more turns), constant force spring, power springs (including of general and prestressed types), etc

Tech Spring / TSI / TSMC has been offering customers high-quality precision-made springs, both with advanced technology and 31 years of experience, Tech Spring / TSI / TSMC ensures to meet each customer's demands.


Power Springs

Power springs are sometimes referred to as clock springs, spiral torsion, flat spiral springs, motor springs or brush springs, they are made by tightly winding a spring material on an arbor in a circular case and attaching the free end to a metal or plastic case which is designed to store and release a rotational energy in the form of torque, that makes up a power spring are able to offer a high force output with very small space requirements.

There are two basic types of power spring-" Conventional Power Springs" that has a shape which spirals away from center in the same direction as it is wound, where the advantages are lower stress, best cycle life and easiest to manufacture.

Alternatively, the Prestressed Power Spring has a portion of it's shape that spirals in the reverse direction of winding, it can creates higher stresses which result in higher torque output up to 25% than a conventional power spring, and also yields a flatter torque gradient.

Both methods have their advantages and the best option varies depending on the application and requirements, often, these springs are designed for customer specific applications and are used in the automotive, aerospace & defense, medical, industrial, electronics markets and commercial goods. Custom Power Springs and Conventional Power Springs are available at TSMC, our experienced engineers can assist you select a spring design to meet your space, life cycle, load and operation requirements.

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Engineering Design

Power Springs

Custom products are a specialty of TSMC (Tech Spring Manufacturing Corp.), as a full service precision manufacturing company, our experienced engineers have extensive knowledge of custom parts, they are always available to assist you to conduct a comprehensive functional analysis of development and gives a feasible solution through our own formula from the preliminary design phase to fabrication that meets your application needs.

There are four critical factors when considering a Power Spring design such as Bore/ shaft (ID/OD), Load, Working height at which the load is applied and Material desired, as well as the other input parameters that contain the wire thickness, wire radial wall, active number of turns, work height, load at work height ... The input data as shown on the left table. And calculation results with spring rate (stiffness), working load (±10%), outer diameter at solid height, Working curve and Life cycles prediction where found in the down table.

Whether you need a standard or custom Power Springs, please send us your application requirement, our experts will hand-select or commend the best solution for your specific needs.

Power Springs

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Power Spring



Related Products
  • Spiral Torsion Springs - Spiral Torsion Springs, Flat Coil Springs
    Spiral Torsion Springs

    TSMC Spiral Torsion Springs also known as clock springs, flat spiral spring or spiral torsion springs, they are typically manufactured from high carbon steel or stainless steel that wound in the flat state, and are characterized by the condition that their coils do not contact during operation, the inner end of these springs are fixed and the other end attached to the other components that is rotating the spring torque. This design offers reduced force, also reduce friction to zero (coil friction free) when installed correctly.Spiral Torsion Springs are the most commonly used type of flat spring and are sometimes used in place of the traditional torsion spring as they rotate in circular movements, the torque deliver per revolution is linear for the first 360 degree, at greater angular rotation, the coils begin to close on the arbor and the torque per turn increases rapidly also per revolution on nonlinear when closer to the axis, thus these type of springs are ideally suited for applications requiring less than 360° of angular rotation.Our custom designed Spiral Torsion Springs are available in a variety styles, sizes and materials, this makes power springs useful in a wide variety of applications, with this complete selection of styles available, our experienced engineers can help you select a spring design to meet your needs.


  • Pre-Stressed Power Springs - Pre-Stressed Power Springs
    Pre-Stressed Power Springs

    Both of our conventional power springs and back wound pre-stressed power springs are formed by winding a pre-stressed flat strip on an arbor and enclosing it in a case, these springs are used to store and release a rotational energy in the form of torque.Prestressed Powder Springs are wound around the arbor in reverse direction and assemble it in a housing or keeper, it is "S" shaped when in the free state, the ends configurations can be formed a connection hook or bend, or it can be pierced or notched a hole. As spring thickness and length increases and spring space relatively increase.This unique configuration yields a compact power source that allows the spring torque increase throughout the number of useful turns and cause a higher working stress while resulting a flatter torque gradient.In comparison with a conventional power spring, a prestressed power spring can have a greater energy storage capacity up to 25% to 55% with the same torque and deflection, which is suitable for use in applications where winding, counterbalancing and retrieving are required.



Related Materials
  • Corrosion Resistant

    Wire for use in corrosive environments such as gases and liquids. Materials which are resistant to chemical attack in acidic, alkaline or complex environments. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Electrical and Electronic

    Wire used for High Performance electrical and electronic applications (often in high temperatures), selected for their specific electrical and associated properties. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Strength

    Wire for withstanding high loads and / or stresses and those with good strength to weight ratios. In many cases, mechanical properties can be further increased by age hardening with heat treatment. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Water Resistant

    Wire which performs well in aqueous environments. Materials which are resistant to corrosion in subsea or other application areas; where exposure to moisture is commonplace. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Heat Resistant

    Wire for use in high temperatures where high strength, creep and stress rupture resistance, oxidation resistance or a combination of these is required. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Controlled / Low Expansion

    Wire which has a low or controlled rate of thermal expansion at room temperature, often used in metal to glass sealing or electronic applications. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Electrical Resistance Wire

    Wire used where linear electrical resistance can be achieved through selection of different sizes and shapes. Often used in heating elements or resistors. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Hot Cutting and Sealing

    Wire used typically for packaging and cutting applications. Materials which have electrical resistance properties which allow them to efficiently reach the temperatures required for hot cutting and sealing. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Sub Zero

    Wire which has good mechanical properties in low temperature environments, typically materials will be ductile in nature and have good fracture toughness. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.


  • Specific Applications

    Wire that has properties that lend themselves extremely well to being tailored to very specific applications; examples might include medical devices or watch springs. If you have any questions about material selection, please do not hesitate to contact us. We can provide you with the best solution.