SHENGYI boasts extensive experience in spring manufacturing, supported by a robust design and engineering team as well as deep industry expertise. This enables us to deliver highly efficient communication and services tailored to your needs. Whether you require small-batch production or large-scale production for inventory sales, we are equipped to provide the optimal solution. Simply supply the technical drawings and specifications, and our engineering team will promptly respond with professional assistance.
Custom Extension Springs
Free sample production | 3-7 days get samples | 24 hours response
Get Instant Quote ISO9001:2015 | ISO14001:2015
Custom Extension Springs
A
At ShengYi Intelligent Technology, we provide
tension spring
is ahelical spring
that canprovide axial tensile force
. When stretched, it can store elastic potential energy and provide a strong restoring force when restored, thereby achieving the effect of tensile force. In order to effectively release the elastic potential energy stored in thetension spring
, the two ends of the spring are generally designed with hook rings or various special structures. These structures can make the spring more convenient to follow or release elastic potential energy.Tension springs
are typically used in mechanical systems that require precise tensile force, vibration buffering or reset functions, such as Pilates springs, mechanical joint springs, and balance springs for washing machines, etc.At ShengYi Intelligent Technology, we provide
customized tensile spring
solutions for our customers with years of experience. No matter what the wire diameter, outer diameter, number of turns or end design is, we do our best to meet the diverse demands ranging from lightweight equipment to heavy machinery.Extension Springs
Application-
Automobiles and transportation
✓ Typical applications:
Accelerator pedal return spring: Provides foot feel feedback and safe reset during driving.
Truck tarpaulin tensioning system: Evenly distribute tensile force to secure the goods. -
Industrial machinery
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Household appliances and furniture
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Fitness and medical equipment
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Electronics and Automation
Quality of Extension Springs
We provide Extension Springs and design services of the highest quality.
Quality and Engineering Excellence
At ShengYi Intelligent Technology, we can provide you with the highest quality stretch springs you need and offer you the best elastic load capacity. From the design and production of
tension springs
, we have been committed to providing you with the best and most efficient solutions and plans. I believe our products can meet every measurement and parameter of yours.
✓ Customized Design Ability
Load optimization: The spring stiffness and maximum tensile length are calculated through FEA simulation to avoid plastic deformation.
End innovation: Supports over 20 types of end designs such as hook-ring, threaded end, and flared end, suitable for complex installation scenarios.
End innovation: Supports over 20 types of end designs such as hook-ring, threaded end, and flared end, suitable for complex installation scenarios.
✓ Full-Process Quality Control
Material testing: The material composition is verified by a spectrometer.
Fatigue test: Simulate 100,000 tensile cycles to ensure the service life meets the standard.
Surface treatment: Electro-galvanizing, epoxy coating and other processes enhance corrosion resistance.
Fatigue test: Simulate 100,000 tensile cycles to ensure the service life meets the standard.
Surface treatment: Electro-galvanizing, epoxy coating and other processes enhance corrosion resistance.
✓ Advanced Manufacturing Technology
CNC spring rolling machine: Accuracy ±0.1mm, supporting the production of springs with wire diameters ranging from 0.2mm to 12mm.
Automated inspection line: The laser measuring instrument monitors the free length and load characteristics in real time (error ≤±3%).
Automated inspection line: The laser measuring instrument monitors the free length and load characteristics in real time (error ≤±3%).
Spring Specifications(Material)
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Carbon Steel
✓ HighCarbon Steel
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Stainless Steel
✓ Austeniticstainless steel
✓ Martensiticstainless steels
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Copper Alloys
✓ Beryllium copper✓ Phosphor bronze -
Shape memory alloy
✓ Nitinol
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ISO9001: 2015
Shengyi Intelligent Technology has completed and reached the ISO9001 quality system certification. And the company has been following the relevant procedures for a long time. Ensure that there are no mistakes in the production process.
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ISO14001:2015
As a precisionspring manufacturer
, we are committed to sustainable production. Our ISO 14001 certification ensures: minimizing waste and energy consumption in wire forming, heat treatment and coating. Strictly control the use of hazardous substances (RoHS/REACH) in springs for the medical and electronic industries.
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1
How to determine the initial tension of a tension spring?
The tension of a spring depends on the diameter of the raw material, the number of turns and the elasticity of the material. We offer free design and solutions to ensure the safety of your products.
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2
How to prevent the end of the spring from breaking?
The strength of the product is enhanced by optimizing the bending radius of the hook ring. After the product is made, stress relief heat treatment is adopted, and the ability to resist crack propagation can also be enhanced through surface treatment.
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3
What standards should medical-grade stretch springs meet?
The materials used comply with the biocompatibility requirements of ISO 10993.
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4
What is the minimum order quantity?
The standard minimum order quantity is 2,000 pieces. We support small-batch trial production (500 pieces) and offer a 3-day express sample service.
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5
How is the lifespan of a tension spring predicted?
The service life of tensile springs is directly related to the fatigue limit of the material and the number of working load cycles. Under normal circumstances, we will simulate the actual working conditions through fatigue tests to conduct cyclic stretching, and then measure after reaching different times.
