Zhuji Zhejiang China Ramp Spring Made-to-Order Torsion Springs

• Customization: Available
• Function: Pressed
• Material: Steel
• Model NO.: tension spring
• Usage: Industrial, Auto, Furniture, Motorcycle
• Load Type: Compression
• Production Process: Cold Roll
• Shape: Cylinder
• Transport Package: Carton Pallet
• Specification: 100 x110x120
• Trademark: Bosswinn
• Origin: China
• HS Code: 7320209000
• Production Capacity: 2000000
• Package Size: 110.00cm * 110.00cm * 120.00cm
• Package Gross Weight: 1500.000kg

Product Description

 

Product Description

 

The Bosswinn Torsion Spring represents a perfect blend of innovation and precision engineering. Built on the fundamental principles of torsion springs, it operates by twisting or rotating around its central axis rather than stretching or compressing. When the spring is twisted, it efficiently stores mechanical energy, releasing it in a controlled manner as the twisting force is removed. This dynamic action means that the torque produced is directly proportional to the angle of twist-ensuring reliable and consistent performance every time.

**Key Features of the Bosswinn Torsion Spring:**

- **High-Quality Construction:** Crafted from premium metals such as steel, ensuring durability and long-lasting performance.
- **Optimized for Rotation:** Specifically engineered to function by twisting, it delivers precise torque tailored to a wide range of applications.
- **Versatile Winding Options:** Whether you need a tight or loose winding, Bosswinn offers customizable solutions to suit your mechanical requirements.
- **Variety of Designs:** Available in various shapes and configurations-including straight, single, and double torsion designs-to meet the unique demands of your projects.

With the Bosswinn Torsion Spring, you're not just investing in a spring; you're choosing a product that combines reliability, flexibility, and high performance for all your mechanical and industrial applications.

This table provides a comprehensive overview of Bosswinn springs-from the raw materials and their intrinsic properties to the detailed workcraft and finished product characteristics-ensuring you have all the technical insights necessary for quality evaluation and selection.

Parameter	Specifications/Details
Raw Materials Processed	Stainless steel, Music wire, Carbon steel (SWC), Alloy steel (SEA9260/9254/6150/SUP9/SUP10/SUP12), 51CrV4, etc.
Raw Material Physical Properties	- Stainless Steel: Density ~7.9 g/cm³; Melting Point ~1400-1450°C - Carbon Steel: Density ~7.85 g/cm³; Carbon content and hardness vary by grade
Raw Material Chemical Composition	- Stainless Steel: Typically contains 10-20% chromium, 8-12% nickel, plus other elements based on grade - Carbon Steel: Generally contains less than 2% carbon with additional alloying elements per specification
Material Diameter/Thickness	0.1 ~ 8 mm
Processing Methods (Workcraft)	CNC processing and manual work, including precision machining, grinding, and heat treatment. This ensures tight tolerances and consistent performance in every Bosswinn spring produced.
Finished Product Mechanical Data	Customizable based on design requirements. Typical parameters include: - Tensile Strength: Engineered for high elasticity and fatigue resistance - Torque Output: Proportional to the angle of twist and material properties
Surface Treatment	Multiple options available such as painting, electroplating, polishing, and blackening, chosen to enhance durability and appearance.
Applications	Suitable for a wide range of applications including industrial facilities, automobiles, motorcycles, electronics, sports facilities, telecommunications products, and more.
Quality Certifications	ISO9001-2000, ISO14000
Payment Terms	T/T, L/C
Packing Methods	Packaged in plastic bags and then cartons; options for wooden or plastic packaging are available to meet specific shipping requirements.
Shipment Options	Shipped by sea from Ningbo or Shanghai; by air from Shanghai or Hangzhou

 

 

•  
• 

 
Bosswinn metal springs combine cutting-edge engineering with premium-grade materials to deliver reliable, high-performance solutions. Designed for durability, these springs undergo rigorous testing to ensure they maintain their form and functionality under demanding conditions. Each Bosswinn spring is made from fine raw materials that resist rust and corrosion, meeting international standards for quality. With high precision manufacturing techniques, Bosswinn springs consistently provide the exact performance required, while their inherent thermostability makes them suitable for a wide range of temperature-sensitive applications. When you choose Bosswinn, you choose superior quality, longevity, and peace of mind.

Our production

 

 About our production proess
 

1. **Premium Raw Materials**  
   - Bosswinn uses high-grade metals such as stainless steel, music wire, and various alloy steels (SEA9260/9254/6150, SUP9, SUP10, SUP12, 51CrV4, etc.).  
   - These materials are chosen for their strength, fatigue resistance, and ability to maintain performance under demanding conditions.

2. **Precision Manufacturing**  
   1. ** (Winding)**  
      - Using specialized spring coiling machines, each torsion spring is wound to precise diameter, number of coils, and pitch.  
      - Strict control ensures every spring meets exact design requirements.

   2. ** (Heat Treatment)**  
      - After winding, springs undergo quenching and tempering to improve mechanical properties, hardness, and toughness.  
      - This process significantly enhances the spring's durability and overall performance.

   3. ** (Surface Treatment)**  
      - To increase corrosion resistance and improve appearance, springs may be galvanized, painted, electroplated, polished, or blackened.  
      - In addition to standard finishes, specialized coatings are available based on customer requirements-ensuring long-lasting performance in various environments.

3. **Flexible Design Options**  
   - Bosswinn torsion springs are available in different configurations (e.g., single or double torsion, custom coil diameters) to accommodate a wide range of applications.

4. **Rigorous Quality Control**  
   - Every spring is tested and inspected in-house, adhering to ISO9001-2000 and ISO14000 standards for consistent quality, reliability, and safety.
 
 

Our quality control

By incorporating the following quality control measures throughout torsion spring production-starting from raw material selection and continuing through heat treatment, surface finishing, we ensure the springs consistently meet **strict industry standards** and **customer-specific requirements**.

1. **Raw Material Inspection**  
   - **Chemical Composition:** Verify that incoming materials (e.g., stainless steel, music wire, alloy steels) match required specifications.  
   - **Physical Properties:** Check hardness, tensile strength, and surface condition to ensure suitability for spring-making.

2. **Dimensional Accuracy**  
   - **Winding Parameters:** Monitor coil diameter, pitch, and the number of coils against design tolerances.  
   - **Measuring Equipment:** Use precise gauges, calipers, and specialized devices (like optical comparators) for real-time inspection.

3. **Heat Treatment Verification**  
   - **Process Control:** Validate quenching and tempering parameters (time, temperature, cooling rate) to achieve desired mechanical properties.  
   - **Hardness Testing:** Conduct hardness checks (e.g., Rockwell, Vickers) after heat treatment to confirm the correct level of hardness and toughness.

4. **Surface Treatment Checks**  
   - **Uniform Coating:** Ensure painting, plating, polishing, or blackening is evenly applied without defects (bubbling, flaking, etc.).  
   - **Adhesion & Corrosion Resistance:** Perform spot checks to verify the coating's adhesion and corrosion protection.

5. **Torque and Load Testing**  
   - **Torque-Angle Relationship:** Confirm that the spring's torque is proportional to the design's angle of twist.  
   - **Load Capacity:** Verify load capacity under both static and dynamic conditions to ensure consistent performance over the spring's service life.

6. **Fatigue & Durability Assessment**  
   - **Cyclic Testing:** Simulate repeated operational stresses to confirm the spring's resilience against fatigue failure.  
   - **Lifecycle Analysis:** Evaluate how material properties and design parameters affect the spring's long-term reliability.

7. **Final Inspection & Documentation**  
   - **Visual Inspection:** Check for surface cracks, dents, or deformities.  
   - **Record Keeping:** Maintain comprehensive inspection reports and test data for traceability, meeting standards like ISO9001-2000 and ISO14000.
 

 

Packaging & Shipping

  Packing Methods  
1. Protective Packaging: Springs are carefully packed to prevent deformation or damage during transportation.  
2. Material Options:  
   - Plastic bags for initial protection against moisture and dust.  
   - Carton boxes for standard shipments, ensuring secure handling.  
   - Wooden or plastic crates for bulk orders or fragile components requiring extra protection.  
3. Custom Packaging: Tailored solutions are available based on customer specifications, including branded or reinforced packaging for added security.  
4. Labeling & Documentation: Each package includes detailed labeling with product specifications, batch numbers, and handling instructions for traceability and convenience.  

 Delivery Methods  
1. Shipping Options:  
   - By Sea: Cost-effective option for large-volume orders, with shipments departing from major ports such as Ningbo and Shanghai.  
   - By Air: Faster delivery for urgent orders, available from Shanghai or Hangzhou airports.  
   - By Express Courier: Available for small or sample shipments requiring quick transit.  
2. Lead Time:  
   - Standard production time: 10-15 days.  
   - Peak season: May extend up to one month based on order volume.  
3. Flexible Logistics: Customers can choose their preferred shipping method, and Bosswinn offers assistance with freight arrangements and documentation to ensure smooth customs clearance.  
4. Tracking & Support: Real-time tracking is provided, with dedicated customer service for logistics updates and post-delivery support.  

Bosswinn ensures safe, reliable, and efficient packaging and delivery solutions to meet global customer demands while maintaining the highest quality standards.

 

Applications

 

 

•  Torsion Springs: Versatile Applications and Industry Use 
  
  Torsion springs, which work by twisting rather than compressing or extending, find a broad range of applications across multiple sectors. One notable example is the **torsion bar**, a specialized type of torsion spring used in vehicle suspensions. By twisting along its axis to absorb road shocks, the torsion bar effectively cushions passengers from bumps and vibrations. This reliable design is seen in many modern cars and trucks, demonstrating the proven effectiveness of torsion-based suspension systems.
  
  Beyond automobiles, torsion springs appear in diverse settings. They serve as key components in **torsion pendulums**, used for precise scientific experiments and timekeeping. Historically, torsion springs were even integral to certain **ancient weapons** and continue to feature in some **modern toys**-a testament to their enduring versatility. In mechanical watches, torsion springs take the form of **balance or hair springs**, ensuring accurate time measurement, while **torsion balance springs** are found in mechanical pointer-type meters to maintain precise readings. Even in miniature form, torsion springs power advanced electronic applications, such as **digital micromirror device (DMD) chips**, underscoring their importance in cutting-edge technology.
  
  A wide range of industries relies on torsion springs to enhance product functionality and durability. **Major original equipment manufacturers (OEMs)** frequently incorporate torsion springs into their designs due to the springs' adaptability, long service life, and ability to handle cyclical stress. This demand spans:
  
  - **Industrial Production Lines:** Torsion springs help control and synchronize mechanical movements.  
  - **Transportation Vehicles:** Beyond standard passenger cars, various modes of transportation benefit from torsion-based suspension or load-bearing mechanisms.  
  - **Construction Facilities:** Heavy machinery employs torsion springs to withstand repetitive stress and maintain consistent performance.  
  - **Materials Handling:** Systems that lift, move, or position goods often rely on torsion springs for controlled motion.  
  - **Agricultural Machines:** Torsion springs enable reliable operation in equipment subjected to uneven terrains and high vibration.  
  - **Petrochemical:** In harsh environments, torsion springs maintain functionality despite exposure to extreme temperatures and chemicals.  
  - **Aeronautical:** Aircraft and related systems use torsion springs to reduce weight and improve reliability under significant mechanical loads.
  
  From fundamental suspension components to precision instruments and beyond, torsion springs remain a cornerstone of modern engineering. Their ability to store and release energy through twisting makes them indispensable in numerous applications, ensuring efficiency, longevity, and performance across a wide spectrum of products and industries.

 

Company Profile

Zhuji Bosswinn is a leading provider of advanced manufacturing solutions, offering a comprehensive range of services and products to meet diverse industry needs. Our core expertise lies in metal spring production, CNC fine machining, and precision punching for various components. We also feature specialized products such as counterbalancing springs (flat spiral springs) and clutch release bearing sleeves, each engineered for reliability and long-lasting performance. By combining innovative design, high-grade materials, and strict quality control, Zhuji Bosswinn ensures that every solution delivers the durability and precision our customers expect.

Why Partner with Bosswinn?

With more than 30 years of expertise in the metal spring industry, Bosswinn stands as a trusted manufacturer known for precision, reliability, and innovation. Our state-of-the-art production facilities ensure exceptional quality control and high-volume production capacity, meeting both standard and custom requirements with efficiency. We specialize in developing custom tooling solutions and manufacturing springs tailored to client specifications, providing end-to-end support from design to mass production.

Frequently Asked Questions (FAQ)

1. Is Bosswinn a manufacturer?
Yes, we are a direct manufacturer. Our company operates two advanced production facilities specializing in metal springs, CNC machining parts, and precision stamping components.

2. What is the typical delivery time?
Our standard production lead time ranges from 10 to 15 days. During peak seasons, delivery may extend up to one month depending on order volume.

3. What is the minimum order quantity (MOQ)?

• For initial orders: We accommodate any quantity.
• For mass production: A minimum of 10,000 pieces is preferred for cost efficiency.

4. What payment methods do you accept?
We support multiple payment options, including:

• T/T (Telegraphic Transfer)
• L/C (Letter of Credit)
• Western Union

5. How can we confirm samples?
We provide free samples for evaluation. Customers can review the samples before proceeding with bulk production.

At Bosswinn, we are committed to delivering high-quality, precision-engineered solutions tailored to the unique needs of our clients. Contact us today to explore how we can support your business!