Bosswinn Coiling Spring Precision in Every Coil – Engineered for Excellence

• Customization: Available
• Function: Pressed
• Material: Steel
• 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

Product Description

Product Description

"Precision in Every Coil - Engineered for Excellence"

Unlock the power of precision with our high-performance coiling springs, designed to meet the most demanding industrial and commercial applications. Whether you're in automotive, aerospace, manufacturing, or robotics, our springs are crafted with unmatched accuracy, durability, and reliability.

Why Choose Our Coiling Springs?

• Tailored Solutions: Custom-engineered to your exact specifications.

• Superior Materials: High-grade alloys for maximum strength and longevity.

• Advanced Technology: State-of-the-art manufacturing for consistent quality.

• Industry Expertise: Decades of experience delivering springs that perform under pressure.

From compression to tension, torsion to extension, our springs are the heartbeat of your machinery. Let us help you achieve peak performance with every coil.

Your Success, Built Spring by Spring.
Contact us today to discover how our coiling springs can elevate your projects to the next level.

Precision. Performance. Perfection.
Coiling Springs That Move the World.

 

Machinery springs are critical components in mechanical systems, designed to store energy, absorb shocks, and maintain force or motion. Below is a detailed breakdown of their technical parameters, workcraft (manufacturing processes), and usages.

 

1. Technical Parameters of Machinery Springs

1.1. Geometric Parameters

Parameter	Description	Typical Data Range
Wire Diameter (d)	Diameter of the spring wire.	0.5 mm to 20 mm
Mean Coil Diameter (D)	Average diameter of the spring coils.	5 mm to 200 mm
Free Length (L)	Length of the spring in its unloaded state.	10 mm to 500 mm
Number of Active Coils (n)	Number of coils that contribute to spring deflection.	2 to 20
Pitch (p)	Distance between adjacent coils in a compression spring.	2 mm to 50 mm
Solid Height (H)	Height of the spring when fully compressed.	5 mm to 100 mm

 

1.2. Mechanical Properties

Parameter	Description	Typical Data Range
Spring Rate (k)	Force required to compress or extend the spring by a unit distance.	1 N/mm to 500 N/mm
Load Capacity (F)	Maximum force the spring can withstand without permanent deformation.	10 N to 10,000 N
Deflection (δ)	Distance the spring compresses or extends under load.	5 mm to 200 mm
Stress (τ)	Shear stress experienced by the spring material under load.	300 MPa to 1,500 MPa
Fatigue Life	Number of cycles the spring can endure before failure.	10,000 to 1,000,000 cycles

 

1.3. Material Properties

Parameter	Description	Typical Data
Material	Common materials include high-carbon steel, stainless steel, and alloy steel.	ASTM A228, SUS 304, Inconel
Tensile Strength	Maximum stress the material can withstand before breaking.	1,500 MPa to 2,500 MPa
Modulus of Rigidity (G)	Measure of the material's stiffness in shear.	70 GPa to 80 GPa (steel)
Surface Finish	Coating or treatment to prevent corrosion and wear.	Zinc plating, powder coating

   

2.5. Testing and Quality Control

• Load Testing: Verify load capacity and deflection.

• Fatigue Testing: Simulate real-world conditions to determine fatigue life.

• Dimensional Inspection: Use calipers, micrometers, and gauges to check geometric parameters.

• Spring Rate Testing: Ensure the spring rate is within ±5% of the target value.

 

3. Usages of Machinery Springs

3.1. Automotive Industry

• Applications:

  • Suspension systems (coil springs).

  • Valve springs in engines.

  • Clutch mechanisms (torsion springs).

• Requirements: High fatigue life, corrosion resistance, and precise load capacity.

 

3.2. Industrial Machinery

• Applications:

  • Presses and stamping machines.

  • Conveyor systems.

  • Robotics and automation equipment.

• Requirements: High load capacity, durability, and precision.

 

3.3. Aerospace

• Applications:

  • Landing gear systems.

  • Control surfaces and actuators.

• Requirements: Lightweight materials, high strength, and resistance to extreme temperatures.

 

3.4. Consumer Electronics

• Applications:

  • Keyboards and switches.

  • Battery contacts.

• Requirements: Small size, precise spring rate, and long fatigue life.

 

3.5. Medical Devices

• Applications:

  • Surgical instruments.

  • Implantable devices.

• Requirements: Biocompatible materials, high precision, and reliability.

 

3.6. Construction Equipment

• Applications:

  • Heavy machinery like excavators and cranes.

• Requirements: High load capacity, durability, and resistance to harsh environments.

 

3.7. Household Appliances

• Applications:

  • Washing machines.

  • Garage doors.

• Requirements: Corrosion resistance, long fatigue life, and ease of installation.

 

4. Summary Table of Machinery Springs

Aspect	Details
Wire Diameter	0.5 mm to 20 mm
Coil Diameter	5 mm to 200 mm
Free Length	10 mm to 500 mm
Spring Rate	1 N/mm to 500 N/mm
Load Capacity	10 N to 10,000 N
Material	High-carbon steel, stainless steel, alloy steel
Surface Finish	Zinc plating, powder coating, shot peening
Applications	Automotive, industrial machinery, aerospace, electronics, medical devices

Our production

Design Considerations for Machinery Springs

When designing or selecting machinery springs, the following factors are critical:

1. Load Requirements: The spring must withstand the expected forces without permanent deformation.

2. Deflection: The spring should provide the required range of motion or compression.

3. Spring Rate (Stiffness): The force required to compress or extend the spring by a unit distance.

4. Fatigue Life: The spring must endure repeated cycles of loading and unloading without failure.

5. Environmental Conditions: Consider factors like temperature, corrosion, and exposure to chemicals.

6. Space Constraints: The spring must fit within the available space in the machinery.

 

Manufacturing Process of Machinery Springs

1. Material Selection: Choose the appropriate material based on application requirements.

2. Coiling: The wire is coiled into the desired shape using CNC coiling machines.

3. Heat Treatment: Springs are heat-treated to enhance strength and durability.

4. Surface Finishing: Coatings or finishes (e.g., zinc plating, powder coating) are applied to prevent corrosion.

5. Testing and Quality Control: Springs undergo rigorous testing for load capacity, deflection, and fatigue life.

 

Standards for Machinery Springs

Machinery springs are often manufactured to meet industry standards, such as:

• ISO 9001: Quality management systems.

• ASTM International: Standards for material properties and testing.

• DIN (Deutsches Institut für Normung): German standards for spring design and manufacturing.

2. Workcraft (Manufacturing Processes)

2.1. Material Selection

• Materials: High-carbon steel (ASTM A228), stainless steel (SUS 304), phosphor bronze, or Inconel for high-temperature applications.

• Quality Check: Verify material certifications and perform chemical composition analysis.

 

2.2. Coiling

• Process: The wire is coiled into the desired shape using CNC coiling machines.

• Precision: Tight tolerances are maintained for wire diameter, coil diameter, and pitch.

• Tools: CNC spring coiling machines, mandrels, and guides.

 

2.3. Heat Treatment

• Purpose: To relieve internal stresses and enhance durability.

• Process: Springs are heated to 250-400°C for 30-60 minutes, followed by controlled cooling.

• Result: Improved fatigue life and load-bearing capacity.

 

2.4. Surface Finishing

• Purpose: To prevent corrosion and wear.

• Processes:

  • Zinc Plating: Provides corrosion resistance (5-15 µm thickness).

  • Powder Coating: Adds a protective layer (50-100 µm thickness).

  • Shot Peening: Enhances fatigue resistance by inducing compressive stresses.

• Testing: Salt spray tests (ASTM B117) to evaluate corrosion resistance.

Our quality control

Quality Control Key Points for Machinery Springs

1. Material Quality

   • Ensure correct material grade (e.g., stainless steel, carbon steel, alloy steel).
   • Verify material certification and traceability.
   • Check for any material defects (cracks, inclusions, corrosion).

2. Dimensional Accuracy

   • Verify wire diameter, outer diameter, inner diameter, and free length.
   • Maintain correct coil pitch and spacing.
   • Check for consistency with engineering drawings and tolerances.

3. Load and Performance Testing

   • Conduct load testing at specified compression, extension, or torsion.
   • Ensure correct spring rate (force per unit deflection).
   • Perform fatigue and endurance testing for cyclic loading conditions.

4. Surface Finish and Coating

   • Inspect for burrs, cracks, or surface irregularities.
   • Ensure proper coating (zinc plating, powder coating, black oxide, etc.).
   • Check for uniformity and adhesion of any protective coatings.

5. Hardness and Heat Treatment

   • Verify hardness using Rockwell or Vickers testing methods.
   • Ensure proper heat treatment (tempering, stress relieving, annealing).
   • Prevent overheating, which can weaken the spring.

6. Deflection and Elasticity

   • Confirm the spring returns to its original shape after compression/extension.
   • Test against permanent deformation or relaxation over time.

7. End Configurations

   • Ensure correct end types (closed, open, squared, ground).
   • Check for proper alignment and flatness, especially for compression springs.

8. Tensile and Torsional Strength

   • Conduct tensile strength tests to verify durability.
   • Ensure torsion springs meet specified torque requirements.

9. Assembly Fit and Functionality

   • Check compatibility with mating parts.
   • Ensure proper fit in housings, shafts, or mounting positions.

10. Packaging and Handling

• Prevent tangling or deformation during storage and transportation.
• Use proper labeling with batch numbers for traceability.

 

Packaging & Shipping

 

 

 

 

The applications

Machinery springs are used in a wide range of industries and applications, including:

1. Automotive Industry:

   • Suspension systems (coil springs).

   • Clutch mechanisms (torsion springs).

   • Valve springs in engines.

2. Industrial Machinery:

   • Presses and stamping machines.

   • Conveyor systems.

   • Robotics and automation equipment.

3. Aerospace:

   • Landing gear systems.

   • Control surfaces and actuators.

4. Consumer Electronics:

   • Keyboards and switches.

   • Battery contacts.

5. Medical Devices:

   • Surgical instruments.

   • Implantable devices.

6. Construction Equipment:

   • Heavy machinery like excavators and cranes.

7. Household Appliances:

   • Washing machines.

   • Garage doors.

 

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,  

e. How can we confirm the samples?

Free samples are offered,  

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.