«
Toll Free: +86-755-27478751


Frequently Asked Questions

CISI strive to offer high-quality presmscon engineered springs, metal stamped parts, and wire forms at the most competitive prices. Also, it understands its responsibility to answer its customer’s questions regarding its products. Through this section, we have tried to answer all general and business related questions regarding our products.

    • What are closed and open coil helical springs?

      Helical springs are well known for their load bearing, and shock absorbent properties. These springs are differentiated into two types, depending on their coils, gaps between coils, and design.

      Read More

    • What is meant by free length of a spring?

      The free length of a spring is defined as the length of a compression spring without any force or load applied to it.The compression spring undergoes deflection when a force or load is applied to it.

      Read More

    • What is solid height?

      Solid height of a compression spring is the point at which all its coils touch each other, and no more force can be exerted by the spring. Solid height is a key factor involved in the design of compression springs.

      Read More

    • What is an initial tension?

      Initial tension is the tension that has already accumulated between coils of extension springs. This tension helps keep the coils together.

      Read More

    • How is the right and left hand wound spring distinguished?

      The direction of the spring wind can be easily determined by holding it in hand. The fingers should be placed on the outside of the body, and your thumb should point upwards.

      Read More

    • What is the deflection of a spring?

      Spring deflection is referred as the action of an extension spring, compression spring, or torsion spring, when a force or load is applied or released. This also known as spring travel.

      Read More

    • What is the elastic limit of a spring?

      The elastic limit is defined as the maximum stretch limit of the compression spring without taking a permanent set.

      Read More

    • What are the common spring materials?

      Please check common materials and their properties.

      Read More

    • What are Clock Springs?

      The clock spring is also known as power spring. This spring is identified by coils of strip materials, which are stored in band, case, barrel, and connected to a shaft, or a central arbor.

      Read More

    • What are Carbon Brush Spring?

      Spiral springs are becoming more and more popular in several applications nowadays. Brush spring is one of the types of the spiral spring.

      Read More

    • What are Actuator Springs?

      Compression springs that are specifically designed for actuators are known as actuator springs. Coil springs are one of the popular spring types employed by various industries.

      Read More

    • What are Hydraulic Valve Springs?

      Hydraulic valve springs are metal wire springs that are used to close valves in cylindrical heads of combustion engines. CISI is one of the leading providers of hydraulic valve springs in the US.

      Read More

    • What are Tension Helical Springs?

      Tension helical springs, also known as extension springs, are comprised of tightly wound helical coils that are designed to operate in the direction of the tension.

      Read More

    • What is a Compression Helical Spring?

      Compression helical springs are energy efficient storage devices, which are also known as open-coil helical springs.
      Read More

    • What are Double Torsion Springs?

      As their name suggests, double torsion springs are nothing but two torsion springs combined together to form one single spring.

      Read More

    • What are Heavy Duty Compression Springs?

      As their name suggests, heavy duty compression springs are basically those which are used in applications involving high stress and load.

      Read More