China Elastic Constant Force Spiral Spring Restoring Force

• Customization: Available
• Function: Restoration, Measurement
• Material: Steel
• Model NO.: spiral spring
• Usage: Industrial, Furniture
• Load Type: Compression
• Production Process: Cold Roll
• Shape: Coil
• Transport Package: Carton, Pallet
• Specification: 100 x110x120
• Trademark: Bosswinn
• Origin: China
• HS Code: 7320209000
• Package Size: 30.00cm * 20.00cm * 30.00cm
• Package Gross Weight: 10.000kg

Product Description

Product Description

 

Spiral springs are precision-engineered components designed to function as balancing springs, particularly in applications involving rotational movements with smaller angles. These springs are specifically utilized to store mechanical energy, which is then effectively employed to generate a counterbalancing force or a self-aligning torque. This makes them ideal for systems requiring precise alignment or stabilization. One of the key characteristics of spiral springs is their nearly linear spring curve, which ensures consistent and predictable performance throughout their operational range. This linearity allows for accurate control and reliable functionality in various mechanical and industrial applications, making spiral springs a critical component in systems where precision and stability are paramount.



Here's the updated table with **wire diameter** replaced by **material thickness**, which is more appropriate for certain types of spiral springs, especially those made from flat strips or ribbons:

Parameter	Example 1	Example 2	Example 3
Material	High-carbon steel	Stainless steel (AISI 302)	Phosphor bronze
Material Thickness (mm)	0.5	0.8	1.2
Outer Diameter (mm)	10	15	20
Inner Diameter (mm)	5	8	12
Number of Turns	10	12	15
Spring Rate (N/mm)	0.2	0.5	0.8
Load Capacity (N)	5	10	20
Operating Temperature	-20°C to +120°C	-50°C to +200°C	-40°C to +150°C
Workcraft	Cold-wound, heat-treated	Precision-wound, polished	Hot-wound, stress-relieved
Surface Finish	Zinc-plated	Passivated	Natural finish
Usage/Application	Small torque motors	Medical devices	Precision instruments
Advantages	High durability, linear torque	Corrosion-resistant, precise	Excellent fatigue resistance
Limitations	Limited to small angles	Higher cost	Not suitable for high loads

### **Key Notes:**
- **Material Thickness**: Refers to the thickness of the flat strip or ribbon used to manufacture the spiral spring. This is particularly relevant for flat spiral springs, where the thickness directly impacts the spring's stiffness and load capacity.
- **Workcraft**: The manufacturing process, such as cold-winding or hot-winding, and any post-treatment like heat treatment or polishing.
- **Usage**: Spiral springs are commonly used in applications requiring precise torque, counterbalancing, or self-aligning mechanisms, such as in motors, medical devices, and precision instruments.
- **Spring Rate**: Indicates the stiffness of the spring, measured in Newtons per millimeter (N/mm).
- **Load Capacity**: The maximum force the spring can handle without permanent deformation.
- **Material Choice**: Depends on the application requirements, such as corrosion resistance (stainless steel) or high fatigue resistance (phosphor bronze).

Let me know if you need further adjustments or additional details!




 Advantages of Bosswinn Spiral Springs (Counterbalancing Springs)**

Bosswinn spiral springs, also known as counterbalancing springs, are precision-engineered components designed to deliver exceptional performance in applications requiring controlled torque, precise alignment, and reliable counterbalancing. These springs are widely recognized for their ability to store and release energy efficiently, making them indispensable in industries such as automotive, aerospace, medical devices, and precision instrumentation. 

The key advantages of Bosswinn spiral springs lie in their innovative design, high-quality materials, and advanced manufacturing processes. They offer **near-linear torque characteristics**, ensuring consistent and predictable performance across their operational range. This linearity is critical for applications demanding precise motion control and stability. Additionally, Bosswinn spiral springs are crafted from durable materials such as high-carbon steel, stainless steel, or phosphor bronze, providing excellent resistance to wear, corrosion, and fatigue.

One of the standout features of Bosswinn spiral springs is their **self-lubricating properties**, which reduce maintenance requirements and extend the lifespan of the spring and associated components. Their compact design allows for easy integration into space-constrained systems, while their ability to handle repetitive cycles without losing performance makes them ideal for high-demand environments.

Whether used in small torque motors, medical devices, or industrial machinery, Bosswinn spiral springs excel in delivering **smooth, reliable, and maintenance-free operation**. Their ability to provide consistent counterbalancing force ensures enhanced efficiency, reduced downtime, and improved overall system performance. By choosing Bosswinn spiral springs, you invest in a solution that combines precision, durability, and innovation to meet the most demanding application requirements. 




 

Our production

Effective production management is critical for ensuring the quality, efficiency, and timely delivery of spiral springs. Below are the key points to consider for managing the production process of spiral springs:

1. Material Selection and Procurement
Key Point: Choose high-quality materials (e.g., high-carbon steel, stainless steel, phosphor bronze) based on application requirements.

Action: Establish relationships with reliable suppliers and ensure materials meet industry standards (e.g., ASTM, ISO).

Consideration: Optimize material usage to minimize waste and reduce costs.

2. Design and Engineering
Key Point: Collaborate with design engineers to create precise spiral spring designs tailored to customer specifications.

Action: Use CAD software for accurate modeling and simulation of spring performance.

Consideration: Ensure designs account for factors like load capacity, torque requirements, and environmental conditions.

3. Manufacturing Process
Key Point: Implement standardized manufacturing processes for consistency and quality.

Actions:

Use precision winding machines for consistent coil formation.

Apply heat treatment processes (e.g., tempering, stress relieving) to enhance durability.

Incorporate surface finishing techniques (e.g., plating, polishing) for corrosion resistance and smooth operation.

Consideration: Monitor process parameters (e.g., temperature, tension) to ensure compliance with specifications.

4. Quality Control and Testing
Key Point: Establish rigorous quality control measures to ensure product reliability.

Actions:

Conduct dimensional inspections (e.g., wire thickness, outer/inner diameter, number of turns).

Perform mechanical testing (e.g., load capacity, spring rate, fatigue resistance).

Use non-destructive testing methods (e.g., ultrasonic testing) to detect defects.

Consideration: Maintain detailed records of test results for traceability and continuous improvement.

5. Inventory Management
Key Point: Optimize inventory levels to balance production demands and storage costs.

Actions:

Implement just-in-time (JIT) inventory practices to reduce excess stock.

Use inventory management software to track raw materials, work-in-progress, and finished goods.

Consideration: Ensure critical materials are always available to avoid production delays.

6. Workforce Training and Safety
Key Point: Train employees on proper handling, machinery operation, and safety protocols.

Actions:

Conduct regular training sessions on new technologies and processes.

Enforce safety measures (e.g., PPE, machine guards) to prevent workplace accidents.

Consideration: Foster a culture of continuous learning and safety awareness.

7. Production Scheduling
Key Point: Develop efficient production schedules to meet delivery deadlines.

Actions:

Use production planning software to allocate resources and manage workflows.

Prioritize orders based on urgency and customer requirements.

Consideration: Build flexibility into schedules to accommodate unexpected changes or delays.

8. Equipment Maintenance
Key Point: Ensure machinery and tools are well-maintained to avoid downtime.

Actions:

Implement a preventive maintenance program for critical equipment.

Regularly inspect and calibrate machines to maintain precision.

Consideration: Keep spare parts readily available to minimize repair time.

9. Cost Management
Key Point: Control production costs without compromising quality.

Actions:

Analyze cost drivers (e.g., material, labor, energy) and identify areas for savings.

Optimize production processes to reduce waste and improve efficiency.

Consideration: Balance cost-saving measures with the need to maintain high-quality standards.

10. Continuous Improvement
Key Point: Foster a culture of continuous improvement to enhance productivity and product quality.

Actions:

Implement lean manufacturing principles (e.g., Kaizen, 5S) to eliminate waste.

Regularly review production data and customer feedback to identify improvement opportunities.

Consideration: Encourage employee involvement in problem-solving and innovation.

11. Customer Collaboration
Key Point: Work closely with customers to understand their specific requirements.

Actions:

Provide technical support during the design and prototyping phases.

Offer customization options to meet unique application needs.

Consideration: Maintain clear communication to ensure customer satisfaction.

Our quality control

 

Quality control in the production of counterbalancing springs is critical to ensure their reliability, durability, and performance. Below are the key points for quality control, along with relevant data and considerations:

 

1. Material Selection and Inspection

• Key Point: Use high-quality materials that meet industry standards (e.g., ASTM, ISO).

• Data: Common materials include high-carbon steel (e.g., ASTM A228) and stainless steel (e.g., SUS 304).

• Quality Check:

  • Verify material certifications (e.g., mill test reports).

  • Conduct chemical composition analysis to ensure material grade.

  • Perform hardness tests (e.g., Rockwell or Vickers) to confirm material properties.

 

2. Dimensional Accuracy

• Key Point: Ensure springs meet precise dimensional tolerances.

• Data: Typical tolerances for wire diameter (±0.01 mm), coil diameter (±0.1 mm), and free length (±1%).

• Quality Check:

  • Use precision measuring tools (e.g., calipers, micrometers, and gauges).

  • Perform 100% inspection for critical dimensions.

  • Use statistical process control (SPC) to monitor consistency.

 

3. Spring Rate (Stiffness) Testing

• Key Point: Verify the spring rate (force per unit deflection) meets design specifications.

• Data: Spring rate (k) is calculated as k = \frac{Gd^4}{8D^3n}k=8D3nGd4, where GG = modulus of rigidity, dd = wire diameter, DD = mean coil diameter, and nn = number of active coils.

• Quality Check:

  • Use a spring tester to measure load at specific deflections.

  • Ensure the spring rate is within ±5% of the target value.

 

4. Load and Deflection Testing

• Key Point: Test springs under load to ensure they perform as expected.

• Data: Springs should withstand specified loads without permanent deformation.

• Quality Check:

  • Perform compression/tension tests to validate load capacity.

  • Check for elastic limits (e.g., springs should return to original length after load removal).

 

5. Surface Finish and Coating

• Key Point: Ensure proper surface treatment to prevent corrosion and wear.

• Data: Common coatings include zinc plating (5-15 µm), powder coating (50-100 µm), and epoxy coatings.

• Quality Check:

  • Inspect for uniform coating thickness using a coating thickness gauge.

  • Conduct salt spray tests (e.g., ASTM B117) to evaluate corrosion resistance.

 

6. Stress Relief and Heat Treatment

• Key Point: Perform stress relief and heat treatment to enhance durability.

• Data: Stress relief is typically done at 250-400°C for 30-60 minutes.

• Quality Check:

  • Verify heat treatment parameters (time, temperature, and cooling rate).

  • Conduct hardness tests post-treatment to ensure desired properties.

 

7. Fatigue Life Testing

• Key Point: Ensure springs can withstand repeated loading cycles without failure.

• Data: Fatigue life is tested by cycling springs at a specified load (e.g., 100,000 cycles or more).

• Quality Check:

  • Use fatigue testing machines to simulate real-world conditions.

  • Monitor for cracks, deformation, or failure during testing.

 

8. Visual and Surface Defect Inspection

• Key Point: Inspect for surface defects that could compromise performance.

• Data: Common defects include cracks, pits, scratches, and rust.

• Quality Check:

  • Conduct visual inspections under proper lighting.

  • Use magnifying tools or microscopes for detailed inspection.

 

9. Endurance and Durability Testing

• Key Point: Test springs under extreme conditions to validate long-term performance.

• Data: Springs may be tested at 120-150% of their maximum working load.

• Quality Check:

  • Perform accelerated life testing to simulate years of use.

  • Monitor for signs of wear, deformation, or failure.

 

10. Documentation and Traceability

• Key Point: Maintain detailed records for traceability and compliance.

• Data: Include batch numbers, material certifications, test results, and inspection reports.

• Quality Check:

  • Ensure all documentation complies with industry standards (e.g., ISO 9001).

  • Implement a traceability system to track springs from raw material to finished product.

 

11. Packaging and Storage

• Key Point: Protect springs from damage during storage and transportation.

• Data: Use anti-corrosion packaging (e.g., VCI paper or desiccants) for long-term storage.

• Quality Check:

  • Inspect packaging for integrity and protection.

  • Store springs in a controlled environment (e.g., low humidity, stable temperature).

 

Summary Table of Key Quality Control Parameters

Parameter	Method/Tool	Acceptance Criteria
Material Composition	Chemical analysis	Matches specified grade (e.g., ASTM)
Dimensional Accuracy	Calipers, micrometers	Within ±0.01 mm (wire diameter)
Spring Rate	Spring tester	Within ±5% of target value
Load Capacity	Compression/tension tester	No permanent deformation
Surface Finish	Coating thickness gauge	Uniform coating (e.g., 5-15 µm)
Fatigue Life	Fatigue testing machine	No failure after 100,000 cycles
Visual Defects	Visual inspection, microscope	No cracks, pits, or rust
Traceability	Documentation system	Full traceability from raw material

 

 

Packaging & Shipping

 

Spiral Spring makes flat coil, power and constant force springs are utilized for medical device and transportation components. They are also used in the Industrial, Durable/Commercial Goods and Electronics markets in a variety of applications:

• Rewind devices
• Office equipment
• Motors
• Generators
• Counterbalances
• Door closers
• Electrical switchgear
• Home décor
• Retracting devices
• Point of purchase displays

The applications

 

Counterbalancing springs, also known as counterbalance springs or balancing springs, are mechanical devices used to offset the weight or force of a load, making it easier to move or control. They are widely used in various applications where balancing forces are required to improve efficiency, safety, and ease of operation. Below are some common applications of counterbalancing springs:

 

1. Garage Doors

• Application: Counterbalancing springs are used in overhead garage doors to offset the weight of the door, making it easier to open and close manually or with a motorized opener.

• Function: The springs store energy when the door is closed and release it when the door is opened, reducing the effort required.

 

2. Industrial Machinery

• Application: In machinery such as presses, lifts, and robotic arms, counterbalancing springs are used to balance heavy components.

• Function: They help reduce the load on motors and actuators, improving energy efficiency and reducing wear and tear.

 

3. Aerospace and Aviation

• Application: Counterbalancing springs are used in aircraft control surfaces (e.g., ailerons, rudders, and elevators) to assist pilots in maneuvering the aircraft.

• Function: They reduce the force required to move control surfaces, especially at high speeds.

 

4. Medical Equipment

• Application: In medical devices such as surgical tables, imaging equipment, and patient lifts, counterbalancing springs help adjust the position of heavy components.

• Function: They ensure smooth and precise movement, reducing the physical effort required by medical staff.

 

5. Office Furniture

• Application: Adjustable chairs, monitor arms, and height-adjustable desks often use counterbalancing springs.

• Function: They allow users to easily adjust the position of components without requiring significant force.

 

6. Automotive Industry

• Application: Counterbalancing springs are used in hoods, trunks, and tailgates to make them easier to open and close.

• Function: They reduce the effort required to lift heavy panels and ensure they stay in place when opened.

 

7. Construction Equipment

• Application: In equipment like cranes, excavators, and boom lifts, counterbalancing springs help balance heavy loads.

• Function: They improve stability and reduce the power needed to operate the equipment.

 

8. Retail and Display Systems

• Application: In retail environments, counterbalancing springs are used in display racks, shelving systems, and sliding doors.

• Function: They make it easier to adjust or move displays and ensure smooth operation.

 

9. Theater and Stage Equipment

• Application: Counterbalancing springs are used in stage curtains, lighting rigs, and movable platforms.

• Function: They help stage crews easily adjust heavy equipment and ensure smooth transitions during performances.

 

10. Home Appliances

• Application: Appliances like washing machine lids, oven doors, and reclining chairs use counterbalancing springs.

• Function: They make it easier to open and close heavy components and ensure they stay in place when adjusted.

 

Key Benefits of Counterbalancing Springs:

• Reduced Effort: They minimize the force required to move or control heavy loads.

• Improved Safety: They prevent sudden movements or drops of heavy components.

• Energy Efficiency: They reduce the power needed for motors and actuators.

• Enhanced Precision: They allow for smoother and more controlled movements.
  
  
  
   

  Company Profile

   

  

  Zhuji BossWinn Springs Co., Ltd. is a leading manufacturer and supplier of high-quality springs and precision mechanical components. With years of expertise in spring design, engineering, and production, the company specializes in delivering customized solutions to meet the diverse needs of industries worldwide. BossWinn Springs is committed to innovation, quality, and customer satisfaction, making it a trusted partner for businesses seeking reliable and durable spring products.

   

  Core Services Offered

  1. Custom Spring Design and Manufacturing

• Description: BossWinn Springs offers tailored spring solutions designed to meet specific customer requirements. Their engineering team works closely with clients to develop springs that match exact load, deflection, and dimensional specifications.

• Applications:

  • Automotive suspension systems.

  • Industrial machinery components.

  • Medical devices and equipment.

  • Consumer electronics and appliances.

• 2. Wide Range of Spring Types

• Product Portfolio:

  • Compression Springs: Designed to resist compressive forces.

  • Tension Springs: Engineered to handle stretching or pulling forces.

  • Torsion Springs: Ideal for applications requiring rotational force.

  • Flat Springs: Used in applications requiring flat, flexible components.

  • Wire Forms: Custom-shaped wire components for specialized applications.

• Materials: High-carbon steel, stainless steel, alloy steel, and non-ferrous metals like phosphor bronze.

• 3. Precision Engineering and Prototyping

• Description: BossWinn Springs utilizes advanced CAD software and prototyping tools to create precise spring designs. They offer rapid prototyping services to validate designs before full-scale production.

• Benefits:

  • Reduced time-to-market.

  • Ensured compatibility with customer applications.

  • Minimized risk of design errors.

• 4. High-Volume Production

• Description: The company is equipped with state-of-the-art manufacturing facilities capable of producing springs in large quantities while maintaining consistent quality.

• Capabilities:

  • CNC coiling machines for high precision.

  • Automated production lines for efficiency.

  • Strict quality control processes to ensure compliance with international standards.

• 5. Surface Treatment and Finishing

• Description: BossWinn Springs provides a variety of surface treatments to enhance the durability and performance of springs.

• Options:

  • Zinc Plating: For corrosion resistance.

  • Powder Coating: For added protection and aesthetic appeal.

  • Shot Peening: To improve fatigue life.

  • Passivation: For stainless steel springs to enhance corrosion resistance.

• 6. Quality Assurance and Testing

• Description: The company adheres to stringent quality control measures to ensure every spring meets the highest standards.

• Testing Services:

  • Load and deflection testing.

  • Fatigue life testing.

  • Salt spray testing for corrosion resistance.

  • Dimensional inspection using precision tools.

• Certifications: Compliance with ISO 9001 and other international quality standards.

• 7. Technical Support and Consultation

• Description: BossWinn Springs offers expert technical support to help customers select the right spring for their applications.

• Services:

  • Material selection guidance.

  • Design optimization for performance and cost-efficiency.

  • Troubleshooting and failure analysis.

• 8. Global Logistics and Supply Chain Solutions

• Description: The company provides efficient logistics services to ensure timely delivery of products to customers worldwide.

• Features:

  • Flexible shipping options.

  • Real-time order tracking.

  • Custom packaging to protect springs during transit.

•  

  Industries Served

  BossWinn Springs caters to a wide range of industries, including:

• Automotive: Suspension systems, engine components, and braking systems.

• Aerospace: Landing gear, control systems, and actuators.

• Medical: Surgical instruments, implantable devices, and diagnostic equipment.

• Electronics: Connectors, switches, and battery contacts.

• Industrial Machinery: Presses, conveyors, and robotic systems.

• Consumer Goods: Appliances, furniture, and toys.

•  

  Why Choose Zhuji BossWinn Springs Co., Ltd.?

• Expertise: Decades of experience in spring manufacturing and design.

• Quality: Commitment to delivering products that meet or exceed industry standards.

• Customization: Ability to create springs tailored to unique customer needs.

• Innovation: Use of advanced technology and materials for superior performance.

• Customer-Centric Approach: Dedicated to building long-term partnerships through exceptional service and support.

•  

  Zhuji BossWinn Springs Co., Ltd. is your trusted partner for high-quality spring solutions. Whether you need custom designs, high-volume production, or technical support, BossWinn Springs is equipped to meet your needs with precision and reliability