Contact Platform Support
Help CenterPrecision Ground Coil Spring End Types Closed & Open Spring Rate 10-50 N/mm
Product Spotlights
Related Products
-
Cold Formed Coil Spring 60Si2Mn Steel Free Length 50-300mm Tensile Strength 1200MPaNegotiableMOQ: 1 Piece -
Torsion Coil Spring 1.5mm Wire Diameter 90 Degree Deflection Torque 0.5 NmNegotiableMOQ: 1 Piece
-
Coil Spring for Automotive Suspension System 60Si2MnA Steel Fatigue Life 1 Million CyclesNegotiableMOQ: 1 Piece
-
Industrial Coil Spring for Mechanical Press Feeder Carbon Steel Wire Diameter 4mmNegotiableMOQ: 1 Piece
-
Coil Spring With Mill Test Report 1 Year Warranty 0.8-12mm Wire Diameter CustomizableNegotiableMOQ: 1 Piece
As a manufacturer with over two decades of experience, Anping County Boli Hardware Wiremesh Products Factory specializes in producing high-quality precision ground coil springs. Our Precision Ground Coil Spring End Types Closed & Open Spring Rate 10-50 N/mm are engineered to meet the rigorous demands of various industries. With an annual export value of US$5 million to US$10 million, we have supplied reliable spring solutions to markets across North America, South America, Europe, Asia, and beyond. Our springs are designed to deliver consistent performance, precise tolerances, and long service life.
These precision ground coil springs feature both closed and open end types, offering flexibility for different assembly requirements. The spring rate range of 10-50 N/mm allows for a wide variety of applications, from light-duty to medium-heavy loads. The ground ends ensure flat and parallel surfaces, reducing buckling and providing stable load distribution. Our manufacturing process adheres to strict quality control standards, ensuring each spring meets exact specifications.
| Parameter | Specification |
| Spring Rate | 10 – 50 N/mm |
| End Type | Closed or Open (ground ends) |
| Wire Diameter | 0.5 – 10 mm (customizable) |
| Outer Diameter | 5 – 200 mm (customizable) |
| Free Length | 10 – 500 mm (customizable) |
| Material | Spring steel (carbon steel, alloy steel, stainless steel optional) |
| Surface Finish | Ground, polished, oiled, or as specified |
Key Features & Benefits:
- Precision Ground Ends: Ensures perpendicularity and flatness, improving stability and reducing wear on mating components.
- Wide Spring Rate Range (10-50 N/mm): Suitable for applications requiring moderate to high stiffness, such as valve springs, suspension systems, and industrial presses.
- Closed & Open End Options: Closed ends provide a flat bearing surface; open ends are easier to install in certain assemblies. Both options are available to meet your design needs.
- Customizable Dimensions: Wire diameter, outer diameter, free length, and number of coils can be tailored to your exact requirements.
- High-Quality Materials: Made from durable spring steel, with optional alloy or stainless steel for corrosion resistance or high-temperature environments.
- Consistent Performance: Each spring is stress-relieved and tested to ensure consistent spring rate and fatigue life.
Applications:
- Automotive components (clutches, brakes, valves)
- Industrial machinery (presses, actuators, conveyors)
- Electronic devices (switches, connectors)
- Aerospace and defense equipment
- Agricultural machinery
- General engineering and prototyping
Our precision ground coil springs undergo rigorous quality checks throughout production. We use advanced CNC coiling machines and computerized testing equipment to verify spring rate, dimensions, and surface finish. With a factory established in 1998 and annual export revenue of US$5-10 million, we have the capability to handle large-volume orders while maintaining tight tolerances. Our products are shipped from major ports including Tianjin, Qingdao, and Shanghai, ensuring timely delivery to global customers.
We understand that every application has unique requirements. That's why we offer full customization services, including material selection, end type configuration, and special surface treatments. Our experienced engineering team can assist you in selecting the optimal spring design for your project. Whether you need a standard size or a bespoke solution, we are committed to providing reliable, cost-effective springs that exceed expectations.
With over 20 years of manufacturing expertise, Anping County Boli Hardware Wiremesh Products Factory has built a reputation for quality and reliability. We have served clients in more than 20 countries and regions, including North America, Europe, Southeast Asia, and the Middle East. Our commitment to customer satisfaction is reflected in our repeat business and long-term partnerships. We invite you to experience our professional service and high-quality products.
If you are looking for precision ground coil springs with closed or open ends and a spring rate between 10-50 N/mm, we are your ideal partner. Contact us today for a quote or to discuss your specific requirements. Our team is ready to provide technical support and samples upon request.
Frequently Asked Questions
-
What materials are available for these springs?
We offer spring steel (carbon steel) as standard, with options for alloy steel (e.g., 50CrVA, 60Si2Mn) and stainless steel (e.g., SUS304, SUS316) for corrosion resistance or high-temperature applications. Please specify your requirements. -
What is the tolerance on the spring rate?
Standard tolerance is ±10% of the nominal spring rate. Tighter tolerances (±5%) are available upon request. -
Can you produce springs with both closed and open ends in one design?
Generally, each spring has one end type (closed or open). However, we can customize a spring with one closed end and one open end if needed. Please consult our engineering team. -
What is the minimum order quantity (MOQ)?
MOQ depends on size and complexity. For standard sizes, MOQ is 100 pieces. For custom designs, MOQ may be higher. Contact us for details. -
How long is the lead time?
Typical lead time is 15-25 working days for standard orders. Custom orders may require 20-30 days. We can expedite for urgent projects. -
Do you provide samples?
Yes, we offer samples for evaluation. Sample cost is reasonable, and it is refundable for bulk orders. Shipping charges apply. -
How do you ensure the springs are properly ground?
We use precision grinding machines to achieve flat and parallel end surfaces. Each spring is inspected with a surface plate and height gauge to ensure perpendicularity within 0.1 mm. -
Can you provide springs with a specific spring rate outside the 10-50 N/mm range?
While our standard range is 10-50 N/mm, we can produce springs with rates from 1 N/mm up to 200 N/mm depending on dimensions. Please inquire with your requirements.
Trust Anping County Boli Hardware Wiremesh Products Factory for your precision spring needs. Our combination of experience, global reach, and dedication to quality makes us a reliable supplier. Contact us now to get started!
Send Inquiry to This Supplier
You May Also Like
-
Compression Coil Spring Technical Support & Free Length Tolerances ±0.1mm Standard CompliantNegotiableMOQ: 1 Piece
-
High Pressure Gas Spring 1200N 500mm Stroke 316 Stainless Steel for Marine ApplicationsNegotiableMOQ: 1 Piece
-
Small Gas Spring 50N 100mm Stroke 20°C-60°C for Medical Equipment CabinetsNegotiableMOQ: 1 Piece
-
Adjustable Force Gas Spring 150N-600N 150mm Stroke With M8 Thread for Industrial UseNegotiableMOQ: 1 Piece
-
Gas Spring for Office Chair, 200N 80mm Stroke Tilt Mechanism ReplacementNegotiableMOQ: 1 Piece
-
Gas Spring With 1 Year Warranty, Force 300N Stroke 250mm, Mill Test Report IncludedNegotiableMOQ: 1 Piece
-
Gas Spring for Kitchen Cabinet, 60N 300mm Stroke Soft Close DampingNegotiableMOQ: 1 Piece
-
Heavy Duty Gas Spring 1000N 400mm Stroke 20mm Rod Diameter Carbon Steel ConstructionNegotiableMOQ: 1 Piece
-
304 Stainless Steel Gas Spring 500N Force 200mm Stroke for Automotive HatchbackNegotiableMOQ: 1 Piece
-
Customizable Gas Spring, 500N-2000N, 100-600mm Stroke, Free Replacement Within 1 YearNegotiableMOQ: 1 Piece
