Coiling Springs Long - Lasting Durability for Endless Cycles

• Customization: Available
• Function: Pressed
• Material: Steel
• Model NO.: compression 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: 30.00cm * 20.00cm * 30.00cm
• Package Gross Weight: 2.000kg

Product Description

Product Description

A coil spring is a mechanical device made of a wire or rod wound into a helical shape. Its structure allows it to store and release energy when forces are applied.

 

1. Structure

 

• The wire is coiled around an axis, forming a helix. The pitch, which is the distance between adjacent coils, remains relatively constant throughout the spring. The outer diameter of the coil can vary depending on the design requirements, and the thickness of the wire (also known as the wire gauge) is selected based on the amount of force the spring needs to withstand.
• For example, a tightly - wound coil spring with a small pitch and thick wire will be stiffer and able to handle larger loads compared to a spring with a larger pitch and thinner wire.

 

2. Materials

 

• Steel:
  • High - carbon steel is commonly used as it offers high strength and good elasticity. It can endure significant stress and is suitable for applications like automotive suspensions, where the springs experience repetitive and heavy loads.
  • Stainless steel is preferred when corrosion resistance is crucial. This makes it ideal for use in marine environments or in medical equipment, where the spring needs to maintain its performance over time without rusting.
• Alloys:
  • Alloys such as beryllium copper are used in specialized applications. They combine the properties of good electrical conductivity with spring - like behavior, making them useful in electrical switches and connectors where a spring - loaded mechanism is required to ensure proper electrical contact.
• Plastics:
  • In some cases where cost - effectiveness and lightweight design are important, plastic coil springs are used. They are often found in toys or in some low - load consumer products, where they can provide a simple and inexpensive spring - like function.

 

3. Functions and Applications

 

• Shock Absorption:
  • In the automotive industry, coil springs are an essential part of vehicle suspensions. When a car drives over a bump, the coil springs compress, absorbing the kinetic energy of the impact. As the wheel moves back to its normal position, the spring expands, releasing the stored energy. This helps to smooth out the ride and reduce the vibrations felt by the passengers.
• Force Application:
  • In industrial machinery, coil springs are used to apply a specific force. For instance, in a punch press, the coil spring provides the necessary force to drive the punch into the material being processed. In a garage door mechanism, the coil spring helps to counterbalance the weight of the door, making it easier to open and close.
• Consumer Products:
  • Coil springs are present in many everyday items. In a ballpoint pen, a small coil spring is used to push the ink cartridge forward when the pen is pressed, ensuring a continuous flow of ink. In a mattress, coil springs are used to provide support and comfort, distributing the weight of the sleeper evenly across the surface.

 

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

 

Category	Specifics	Details	Example
Raw Materials	Type	Steel, wood, etc.	High - carbon steel
	Grade	High - carbon steel grade X, etc.	SAE 1060 for high - carbon steel
	Supplier	Name and contact info of the supplier	ABC Steel Co.,
	Quantity per Finished Product	Calculated amount based on product design	5 kg of steel per automotive suspension coil spring
	Composition	Elements present in alloys or components in composites	For steel: iron, carbon, and trace amounts of manganese
	Physical State	Solid, etc.	Solid (for steel bars)
Finished Products	Dimensions	Length, width, height, diameter (if applicable)	Length: 100 mm, Diameter: 20 mm for a coil spring
	Weight	Net weight of the final item	0.5 kg for a small coil spring
	Quality Standards	ISO standards, industry - specific norms	ISO 9001 compliant for general quality, ASTM standards for material properties
	Appearance	Color, texture, surface finish	Shiny silver color, smooth surface finish for a polished metal product
	Function	Main purpose of the product	Provide shock absorption in automotive suspensions
	Durability	Expected lifespan under normal use	100,000 km for automotive suspension springs
Workcraft	Manufacturing Process	Forging, casting, machining, etc.	Machining for precision parts, coiling for coil springs
	Key Steps	List of main steps in the process	For a coil spring: wire straightening, coiling, heat treatment
	Tolerances	Allowable dimensional variations	±0.1 mm for diameter tolerance in a precision - made part
	Quality Control Checks	Inspection points and methods	Visual inspection after each major step, dimensional measurement using calipers
	Production Rate	Number of units produced per hour/day	100 coil springs per hour in a medium - scale production line
Surface Treatment	Type	Painting, plating, anodizing, etc.	Zinc plating for corrosion resistance
	Coating Thickness	Measured in microns or mils	10 - 15 microns for zinc plating
	Adhesion Strength	How well the coating adheres to the substrate	Measured by a cross - hatch test with a rating of 5B (excellent adhesion)
	Color of Coating	If applicable	Silver - gray for zinc plating
	Purpose of Treatment	Corrosion prevention, aesthetic enhancement, etc.	Protect steel parts from rusting in outdoor applications

 

 

4. Summary Table of Machinery Springs

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.