Truck Brake Shoe Tension Caliper Return Coil Adjusting Spring

• Function: Drive, Restoration, Measurement
• Material: Steel
• Usage: Industrial, Auto, Furniture, Motorcycle
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: tension spring
• Load Type: Compression
• Production Process: Cold Roll
• Shape: Cylinder
• Transport Package: Carton Pallet
• Specification: 100 x110x120
• Trademark: Bosswinn
• Origin: China
• Production Capacity: 2000000
• Package Size: 30.00cm * 20.00cm * 30.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

A tension spring, alternatively called an extension spring, is a coiled spring crafted to function under tension, stretching the spring as it extends. These springs find extensive usage across different applications where a pulling force is essential to restore an object to its initial position or to counter opposing forces.

Here are some key attributes and elements of tension springs:

Coil Structure: Tension springs are typically formed by winding a single wire around a central axis, creating a helical or spiral shape. The coils are tightly wound together, with the wire ends fashioned into hooks, loops, or other forms to enable attachment to other parts.

Load-Bearing Capacity: These springs are engineered to endure tensile loads, exerting an opposing force when stretched. The capacity to bear loads hinges on variables like wire thickness, coil size, coil count, and the material characteristics of the spring wire.

Extension and Flexion: Tension springs elongate or extend under tension, with the degree of elongation proportional to the applied force. Deflection properties are determined by design parameters and the material traits of the spring wire.

Materials: Tension springs are commonly crafted from robust materials like spring steel, stainless steel, or other resilient alloys with excellent elasticity and fatigue resistance. Material selection depends on factors such as environmental conditions, load demands, and temperature variations.

End Features: Various end configurations are fashioned on tension springs to facilitate straightforward attachment to other components. Examples include closed loops, extended hooks, or specialized ends tailored to specific mounting needs.

Surface Treatment: Attaining an appropriate surface finish on tension springs is crucial to ensure smooth functionality and ward off premature wear and corrosion. Skillful surface finishing techniques are applied to achieve the desired texture and safeguard against environmental elements.

About this item

• Wire diameter: 1.2 mm/0.05 inches; outer diameter: 10 mm/0.39 inches (AD); free length: 65 mm/2.54 inches
• Dry feel oil surface for added corrosion resistance. Heat hardened spring steel
• Tension spring can be used on many occasions, such as Production and assembly, experiment, research and development, maintenance, etc.
• Applications: furniture, appliances, work, gate, fly screens and repair projects
• Package content: 3 x tension springs

 

Our production

Qualified raw materials

 

 

Our production facilities.


 

Our quality control

 

We strictly control our springs quality . We do not only promise in oral, let the facilities speak.

Packaging & Shipping

 

 Here are the key points when packing our metal springs or machinery parts:

  General Guidelines:
1. **Cleaning and Inspection**:
   - Ensure all parts are clean and free from contaminants.
   - Inspect for any damage or wear before packing.

2. **Protection from Corrosion**:
   - Use anti-corrosion coatings or oils if necessary.
   - Pack in moisture-resistant materials like VCI (Vapor Corrosion Inhibitor) papers or bags.

 Packing Metal Springs:
1. **Prevent Compression and Deformation**:
   - Use spacers or separators to prevent springs from compressing or tangling.
   - Pack in a way that preserves their original shape and functionality.

2. **Cushioning**:
   - Wrap springs in bubble wrap, foam, or other cushioning materials to absorb shocks.
   - Ensure they are snug but not overly tight within the packaging.

3. **Secure Placement**:
   - Use compartments or dividers within the box to keep springs from moving.
   - Consider custom inserts for irregularly shaped or delicate springs.


 Documentation:
1. **Inventory List**:
   - Include a detailed inventory list with descriptions and quantities.
   - Ensure the list is accessible and protected (e.g., in a plastic sleeve).

2. **Handling Instructions**:
   - Attach clear handling instructions on the outside of the package.
   - Use international symbols to indicate handling precautions (e.g., fragile, this side up).

3. **Shipping Labels**:
   - Ensure all shipping labels are clear and accurate.
   - Include contact information in case of issues during transport.

Final Checks:
1. **Sealing**:
   - Ensure all boxes are securely sealed with high-quality tape.
   - Reinforce corners and seams if necessary.

2. **Weight Distribution**:
   - Check that the weight is evenly distributed to avoid shifting during transport.
   - Ensure the package can be safely handled given its weight.

By following these guidelines, we ensure that metal springs  are protected during transport and arrive in good condition.

Applications

 

Tension springs are used in a wide range of applications, including automotive, aerospace, industrial equipment, household appliances, and more. They are often employed in mechanisms such as garage doors, trampolines, retractable doors, and various types of machinery where controlled extension and retraction are required.

1. Tampolines. The trampoline has hundreds of hook end extension springs forming the trampoline base to the metal frame. 

 

2. Vehicles , vehicles use heavy duty extension springs because of the amount of power and strength they require to pull. 

3. Small electronics, like toys.

Extension springs make the electronics to function as  designed.

4. House appliances , like washing machines

Springs are likewise used in washing machines to suspend the drum in position. 

5. Furnitures, doors, windows etc

 extension springs to help the house doors or furnitures close back over once they have been opened. 

7. Exercising facilities

The most common exercise equipment that use extension springs like  the Chest Expander, and other strenght training facilik

The Industries that Use tension Springs

Major original equipment manufacturers (OEMs) that produce products for various industries use compression springs in many of their products. 

• Industrial production lines
• Transportation vechiles
• Construction facilities
• Materials handling
• Agriculture machines
• Petrochemical
• Aeronautical 

FAQ

1.Is Bosswinn a  manufacturer ?

A: We are a manufacturer, the business owner has 2 factories producing springs, machining part, stamping parts

2. When is the delivery time?

A: 10 and 15 days, one month in the peak seasons


3. What is the MOQ?

For the initial order, any quantity ok. For the mass production order, 10000 pcs better.

4. What's your payment method?

 : T/T, L/C, Western Unions,  

5. How can we confirm the samples?

Free samples are offered,  

Why work with Bosswin?
19 years of experiences in the metail springs business.
The most developed facilities gurantee  good quality and very high production capacity.
We can develop necessary toolings and produce any springs as per buyer's requests