Tension Springs/Extension Springs

  German hook extension springs are a common type of spring characterized by German hooks at both ends.The German hook is typically triangular or V-shaped, offering a larger contact area and stronger gripping force, which allows for secure connections with other components.  With their unique hook design and excellent performance, German hook extension springs are widely used across various industries. Understanding the features and applications of German hook extension springs is essential for effectively selecting and using extension springs.  The working principle of an extension spring is to generate a counteracting force when stretched or pulled apart. By utilizing the restoring force (tension) after being extended, these springs can control the movement of mechanical parts, absorb and store energy, and measure force.

 Short German hook extension springs are a specialized type of extension spring featuring short German-style triangular hooks at both ends.This design enables the spring to provide strong tension within limited space and allows for a more compact installation. The short German hook is compact and robust, making it suitable for applications with restricted space and customizable development according to customer requirements.  The short German hook is ideal when the hook area on the product is small. Like other extension springs, it works by exerting a counteracting force when stretched, utilizing the restoring tension force. 

Extension springs are designed to resist pulling forces and return to their original length when the load is released.The English hook type features a loop that is concentric with the spring body, offering balanced stress distribution and a neat, symmetrical appearance.Features:Concentric loop provides even load distribution.Simple structure and easy installation.Suitable for general industrial, mechanical, and household applications.Available with various surface finishes such as zinc plated, color zinc plated, or stainless steel.

  Long German hook extension springs are a common type of extension spring featuring long German-style triangular hooks at both ends.This design increases the contact area between the hooks and the fixture under load, enhancing grip and thereby improving the spring’s reliability.  Long German hook extension springs are mostly used in electronic and electrical products. Like other extension springs, they operate by exerting a counteracting force when stretched, utilizing the restoring tension force.

  Mixed hook extension springs refer to extension springs that combine two or more types of hooks on a single spring.These hooks can differ in shape, size, or even material. This design offers high flexibility and can meet various complex application requirements.

  Swivel hook extension springs are a highly versatile type of extension spring.Unlike standard hooks, the hooks on both ends of a swivel hook extension spring are designed to freely rotate, which greatly enhances the spring’s flexibility and allows it to perform exceptionally well in various specialized equipment.  They are primarily used in mechanical devices, and the main difference from regular hooks is that both ends can rotate, providing added adaptability. Therefore, swivel hook extension springs are considered a highly practical spring type, widely used across many fields due to their flexible nature.  When selecting a swivel hook extension spring, it is important to consider the specific application requirements, taking into account factors such as hook type, material, and dimensions. These factors are often critical and make swivel hook extension springs the preferred choice for many customers.  Swivel hook extension springs are a very practical type of spring, and their flexible characteristics enable them to be widely used in numerous industries. When choosing a swivel hook extension spring, it is essential to comprehensively evaluate the hook design, materials, and dimensions according to the specific application needs.

  Loose-coil extension springs refer to springs where the coils are not tightly adjacent but have a certain gap between them.Compared to traditional close-coil extension springs, this design offers unique characteristics and application scenarios. The spring works by exerting a counteracting force when stretched or extended, utilizing the restoring tension force.  Loose-coil extension springs are a type of spring known for their excellent elasticity and long travel, and they are widely used in many fields. If you need an extension spring with good flexibility and a long stroke, loose-coil extension springs are a great choice.

  V-shaped German hook extension springs refer to extension springs with hooks at both ends designed in a V shape, originating from Germany, hence called German hooks.Compared to traditional round hooks, the V-shaped hooks provide stronger grip, making the spring less likely to detach under load.  V-shaped German hook extension springs feature a specialized hook shape suitable for unique assemblies where tensile force is applied. When stretched, the spring exerts a counteracting force using its restoring tension.

  Side-hook extension springs refer to springs with hooks designed on the edge rather than at the spring’s mean diameter.This design allows the hooks to achieve more precise positioning during extension and provides more stable tension when under load.  Side-hook extension springs are suitable for applications where the hooks engage on flat or planar surfaces. Like other extension springs, they operate by exerting a counteracting force using the restoring tension when stretched.

  Small outer diameter extension springs are mostly customized products requested by customers. They are helical springs that elastically deform under axial tensile force. Unlike compression springs, extension springs typically have coils that are tightly wound without external force applied, requiring a certain amount of tension to separate the coils.  These extension springs feature a small outer diameter with hooks at both ends. Due to their small outer diameter, they can provide strong tension even in limited space, making them widely used in precision instruments, electronic products, and other fields.