Tension Springs Trampoline Spring Jumping Mat Replacement Heavy-Duty Galvanized

• Customization: Available
• Function: Phonation, Drive, Restoration, Measurement
• Material: Steel
• Model NO.: tension spring
• Usage: Industrial, Auto, Motorcycle, Home Appliance
• Load Type: Extension
• Production Process: Cold Roll
• Shape: Conical
• Transport Package: Carton
• Specification: 100 x110x120
• Trademark: Bosswinn
• Origin: China
• Package Size: 30.00cm * 40.00cm * 30.00cm
• Package Gross Weight: 5.000kg

Product Description

Product Description

Embrace the pinnacle of innovation and performance with Zhuji Bosswinn Tension Springs, meticulously engineered by Zhuji Bosswinn Springs Co., Ltd. Our tension springs embody excellence, crafted with precision and exceptional artistry to deliver unparalleled elasticity and remarkable tension strength. Designed to elevate the functionality and longevity of a wide range of applications, these springs are the ideal choice for industries ranging from toys to machinery.

 

 

 

 

Key Features of Zhuji Bosswinn Tension Springs:

• Unmatched Durability: Built to last, our tension springs are designed to withstand rigorous use, ensuring longevity and robust performance.

• Superior Elasticity and Strength: With superior tension strength, these springs offer enhanced resilience, keeping products functional and reliable.

• Versatile Material Options: We offer a wide selection of materials to suit every need, including:

  • Music Wire

  • Hard Drawn

  • Oil Tempered

  • Galvanized Wire

  • Stainless Steels

  • Phosphor Bronze

  • Exotic Materials like pre-plated gold, silver, tin, inconel, chrome vanadium, and many others.

• Custom Solutions: Whether you're working on toys, automotive, or industrial machinery, our tension springs can be tailored to meet your specific requirements, ensuring optimal performance in any environment.

Category	Details
Business Type	Factory & Manufacturer
Certificate	ISO9001:2008, TS16949
Service	CNC milling & turning, sheet metal fabrication, grinding, deburring, tapping, drilling, cutting, knurling, laser marking, wire EDM, CAM programming, and outsource services
Material	Stainless Steel: 303, 304, 304L, 316, 316L, etc. Carbon Steel: 1018, 1045, 1144, 12L14, 1215… Aluminum: 5052, 6061-T6, 6061-T4, 6082-T6, 6063-T6... Brass and Copper: C3602, C3604, H62, C34000 Plastic: POM, PEEK, ABS, PA66, PP, PMMA etc... Titanium and more...
Finish	Sandblasting, anodizing, blackening, plating, polishing, coating, knurling, and more
Equipment	CNC milling machine, CNC turning machine, auto lathe, grinding machine, tapping machine, drilling machine, laser marking machine, WEDM machine, CMM machine, and more.
Drawing Format	STEP, STP, GIS, CAD, PDF, DWG, DXF, etc., or samples.
Main Products	Tension Springs, Stamping parts, CNC machine parts, shafts, screws, and more.
Inspect Tool	Micrometer, thread gauges, calipers, pin gauge, projector, CMM, altimeter, and more.
Quality Control	100% inspection
Tolerance	+/-0.01mm ~ +/-0.001mm or as per client's needs
Surface Roughness	Ra 0.1~3.2 or as per client's needs
Additional Service	Assembly, logo engraving, surface finish, special packaging, etc.

 

 

 

Our production

 

Bosswinn's spring production process is a meticulously structured and efficient workflow designed to ensure high-quality springs for various industrial applications. The production begins with the selection of premium raw materials, which form the foundation of durable and reliable springs.

The process includes spring coiling, where the raw material is shaped into precise coils, followed by tempering to enhance the spring's strength and elasticity. Grinding is then performed to achieve smooth and uniform ends, ensuring optimal performance.

Subsequent steps involve compressing and manual compress to fine-tune the spring's tension and load-bearing capabilities. The setting process stabilizes the spring's dimensions, while sorting guarantees that only products meeting strict quality standards proceed. Finally, the springs are packed and moved to storage, ready for distribution.

Bosswinn's commitment to precision and quality at every stage ensures that their springs meet the highest industry standards, catering to diverse mechanical and industrial needs

Our quality control

 

Bosswinn's multi-layered QC system ensures that every spring meets precise specifications and reliability standards before reaching customers. By integrating automated inspections, mechanical testing, and manual checks, the company minimizes defects and guarantees consistent product excellence.


1. Raw Materials Inspection
Check: Material composition, tensile strength, diameter, and surface defects.

Method: Spectrometer analysis, mechanical testing, and visual inspection.

Goal: Ensure only certified, high-quality materials enter production.

2. Spring Coiling QC
Check: Coil diameter, pitch consistency, and overall geometry.

Method: Automated laser measurement, calipers, and sample testing.

Goal: Verify dimensional accuracy before heat treatment.

3. Tempering Process QC
Check: Hardness, microstructure, and tempering temperature consistency.

Method: Rockwell hardness testing, metallurgical microscopy.

Goal: Confirm proper heat treatment to prevent brittleness or deformation.

4. Grinding QC
Check: Flatness, surface finish, and burr removal.

Method: Surface roughness testers, visual inspection under magnification.

Goal: Ensure smooth, even ends for proper seating in assemblies.

5. Compression Testing (Compress & Manual Compress)
Check: Load capacity, deflection rate, and fatigue resistance.

Method: Compression testers, cyclic load testing.

Goal: Validate spring performance under operational stress.

6. Setting & Stabilization QC
Check: Permanent set resistance, height consistency after compression.

Method: Pre-load testing, dimensional checks after stress relief.

Goal: Ensure springs maintain shape under repeated use.

7. Final Sorting & Defect Detection
Check: Surface cracks, dimensional tolerances, functional performance.

Method: Automated optical inspection (AOI), manual sampling.

Goal: Filter out defective units before packaging.

8. Packaging & Storage QC
Check: Proper labeling, corrosion protection (if coated), batch traceability.

Method: Random audits, humidity checks in storage.

Goal: Prevent damage during transit and storage.
 
 

Packaging & Shipping

Proper packing prevents tangling, deformation, and corrosion in tension springs. Tailor the method based on size, quantity, and shipping conditions to ensure they arrive in perfect condition.

1. Pre-Packing Preparation

• Clean Springs: Remove any oil, dust, or metal debris to prevent corrosion.

• Inspect for Defects: Check for cracks, deformations, or rust before packing.

• Apply Anti-Corrosion Coating (if needed): Use light oil, wax, or VCI (Vapor Corrosion Inhibitor) paper for long-term storage.

 

2. Packing Methods

A. Individual Wrapping (For High-Precision or Large Springs)

• Materials: Bubble wrap, foam sleeves, or VCI paper.

• Method:

  • Wrap each spring individually to prevent tangling.

  • Secure with tape or rubber bands if needed.

B. Bulk Packing (For Small to Medium Springs)

• Materials: Plastic bags, cardboard dividers, or partitioned boxes.

• Method:

  • Group springs by size and load capacity.

  • Use separators (foam, corrugated paper) to avoid contact and friction.

  • Fill empty spaces with packing peanuts to prevent movement.

C. Coiled & Strapped Packing (For Long or Heavy Springs)

• Materials: Plastic spiral wraps, zip ties, or steel bands.

• Method:

  • Coil multiple springs together (if compatible).

  • Secure with straps to maintain shape during transit.

 

3. Container Selection

• Small Springs: Use sturdy cardboard boxes with dividers.

• Large/Heavy Springs: Opt for wooden crates with foam padding.

• Moisture Protection: Add silica gel desiccants if storing in humid environments.

 

4. Labeling & Documentation

• Labels: Include part number, quantity, and handling instructions (e.g., "Fragile," "Keep Dry").

• Documentation: Attach packing lists, certifications, and batch numbers for traceability.

 

5. Storage & Handling Tips

• Stacking: Avoid crushing-place heavier boxes at the bottom.

• Environment: Store in a dry, temperature-controlled area away from chemicals.

• Transport: Use shock-absorbent materials for shipping to prevent vibration damage.

 

Tension springs usages

Applications & Benefits:
Perfect for a diverse range of industries, Zhuji Bosswinn Tension Springs are especially ideal for enhancing toys, boosting their longevity and playability. They keep playtime engaging and unforgettable, maintaining their power for years to come. Trust our tension springs to provide the strength, durability, and reliability necessary to take your products to the next level.

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

Company Profile

 

 

Welcome to Zhuji Bosswinn Springs Co., Ltd., a leading manufacturer specializing in the design, production, and supply of high-quality springs and related products. With years of expertise and a commitment to excellence, we provide innovative and reliable spring solutions for various industries, including automotive, machinery, electronics, and construction.

Our core services include:

1.  Custom Spring Manufacturing**: Tailored spring solutions designed to meet your specific needs. Whether you require compression, tension, torsion, or any other type of spring, our team ensures precision and durability.

2. High-Quality Materials   We use only the best raw materials to create springs that offer outstanding strength, flexibility, and longevity. Our materials are sourced from trusted suppliers to guarantee top-notch performance.

3. Product Development and Design: Our in-house engineers collaborate closely with clients to develop custom spring designs that fit seamlessly into their projects, offering optimal functionality and performance.

4. Fast and Efficient Production: Leveraging advanced technology and automated machinery, we are able to offer quick turnaround times without compromising quality.

5. Testing and Quality Control: Rigorous testing procedures ensure that every spring meets international quality standards. We conduct comprehensive checks on all products to ensure reliability, safety, and performance.

6. Comprehensive After-Sales Support: From the moment you place an order to the ongoing maintenance of your products, we provide exceptional customer service and support, ensuring full satisfaction.

At Zhuji Bosswinn Springs Co., Ltd., we are dedicated to helping businesses thrive with precision-engineered spring products that contribute to the success of your projects.

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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,