HSPR specialize in custom spring for more than 37 years, With our exquisite technology, strict quality control and innovative design concept, we provide our customers with excellent performance spring solutions. We can meet the specific requirements of different application scenarios to improve equipment performance and reliability.

custom Compression Spring

Learn more

custom Tension Spring

Learn more

custom Torsion Spring

Learn more

custom Shaped Spring

Learn more

custom Stamping Parts

Learn more

custom Snap Ring

Learn more

custom Spiral Spring

Learn more

custom Wave Spring

Learn more

How to Design Custom Spring for Your Project

Custom spring according to the drawing

If the customer provides detailed spring drawings, HSPR will produce according to the specifications and requirements on the drawings. The drawings will usually contain all the necessary information about the spring’s shape, size, material, tolerances, etc. HSPR carefully analyzes the drawings and confirms all the details with the customer to ensure that the spring produced fully meets the customer’s expectations.

Custom spring according to sample

If the customer provides a spring sample, HSPR performs detailed measurements and analysis of the sample to determine its key parameters. These parameters may include the diameter of the spring, wire diameter, number of turns, end shape, etc. By analyzing the sample, HSPR can reproduce the same spring as the sample, Or according to customer needs to improve or optimize the sample.

Custom spring according to the parameters

If the customer only provides some key parameters of the spring, such as wire diameter, number of turns, material, etc., HSPR will design and produce based on these parameters. In this case, HSPR may need to further communicate with the customer to obtain more information about the use of the spring, the working environment and the performance requirements to ensure that the spring produced can meet the actual needs of the customer.

confirm spring material

Drawing analysis: HSPR will carefully analyze the material labeling on the drawing to understand the type of material required, grade, and possible special requirements.
Sample testing: If a sample is provided, HSPR performs a material composition analysis of the sample to confirm the type and properties of the material through chemical and physical testing.
Parameter matching: According to the provided parameters, HSPR will select the appropriate material to ensure that the load, working environment and durability requirements of the spring are met.

confirm the production process

Process selection: Based on the type, size and material of the spring, HSPR selects the appropriate production process, such as cold winding, hot winding, compression and stretching.
Equipment and technology: HSPR will evaluate whether its existing equipment and technology can meet production requirements and may upgrade equipment or make technical adjustments if necessary.
Process optimization: In order to improve production efficiency and product quality, HSPR may optimize process flow.

Make Quotation

Cost analysis: HSPR will conduct a cost analysis taking into account material costs, production costs (including labor costs, etc.) and possible transportation and taxes.
Quotation: Based on cost analysis and market competition, HSPR will provide customers with detailed quotations, including material costs, processing costs, transportation costs, etc.
Quotation review and discussion: Our customer will carefully review the quotation and check all details, including product price, specifications, quantity, delivery time, transportation method and payment method. If there are any questions or adjustments that need to be made, the customer will communicate with HSPR for further discussion and consultation.

Company approval: After reviewing the offer, customers may need to approve it within their company, especially for orders involving larger amounts or long-term partnerships. This includes the accounting of costs by the finance department and the review of contract terms by the legal department.

PO confirmation: Once customer approval has been approved and all details have been agreed upon, the customer sends a PO to us. This PO usually contains the details of the order and special requirements as the basis for subsequent execution by both parties.

Contract Signing: HSPR and the customer enter into a formal purchase contract based on mutually agreed terms and conditions. This contract specifies the product description, price, quantity, delivery time, payment method, quality standard and dispute resolution method in detail.

Deposit payment: If there is a deposit in the contract, the customer needs to complete the payment of the deposit within the agreed time. This is usually done by wire transfer or other mutually agreed means.

Order confirmation Notification and follow-up: Upon receipt of order confirmation and advance payment , HSPR will send an order confirmation notification to the customer and begin to arrange production and delivery. In the whole process, the two sides will maintain close follow-up and communication to ensure that the order can be completed on time and in good quality.
We support custom manufacturing of 5 to 10 samples, Usually the sample delivery time is between 1 to 7 days. We will choose the fastest transportation method to deliver the sample to the customer. After sample approval, We will start production.
Spring wire treatment

The raw material is polished and annealed as needed to make it more suitable for making springs.

Winding spring

According to the shape and size of the spring, select the appropriate mechanical equipment, and adjust the equipment parameters to ensure that the formed spring meets the design requirements. The quality inspector shall supervise and test the production personnel and process and fill in the record form.

Heat treatment

For some springs, heat treatment, such as annealing, quenching, etc., is needed to change the structure and performance of the steel.

Surface treatment

 In order to improve the appearance and performance of the spring, surface treatment may be required, such as painting, electroplating, etc.

HSPR has independent mechanical performance laboratory, microcomputer control electronic universal testing machine, image measuring instrument, force measuring machine, salt spray testing machine, fatigue testing machine and other testing equipment more than 100 sets, strict product quality and increase product development efforts.
HSPR uses high-quality packaging materials to ensure that the spring is effectively protected during the packaging process, preventing it from being damaged by vibration, friction or squeezing during transit. Before shipment, HSPR will carry out a strict inspection of the spring to ensure that its quality and quantity meet customer requirements. At the same time, prepare the relevant export documents, such as contracts, invoices, packing lists, etc. According to the order, delivery time and other factors, choose the most appropriate mode of transportation.

HSPR has an after-sales service team with professional knowledge and good communication skills, providing customers with a variety of contact methods, such as email, phone, live chat (Whatsapp, Skype, Wechat), etc., to ensure that customers can contact our after-sales service team at any time. At the same time, multi-language service support is established to meet the needs of customers in different countries.

Once customers raise after-sales questions or feedback, after-sales service staff will respond quickly and give solutions as soon as possible.

We will regularly understand the use of customer springs, collect customer comments and suggestions.

How to Choose materials in custom spring manufacturing

The choice of material to manufacture the spring is very critical, which directly affects the performance, life and application range of the spring. After selecting the raw material, it is best to carry out the actual spring manufacturing and performance testing to ensure that the selected material meets the actual needs.

Consider the corrosion resistance of the material

  • If the spring needs to work in a wet or corrosive environment, stainless steel or a material with a corrosion resistant coating may be a better choice.

Consider the processing properties of the material

  • The malleability, weldability and heat treatment properties of the material will affect the manufacturing cost and efficiency of the spring.

Consider the cost of materials

  • The cost of different materials varies greatly and needs to be balanced according to budget and performance requirements.

Confirm the application and working environment of the spring

  • What is the spring used for? Such as automotive suspension systems, electronic equipment, mechanical equipment and so on.
  • What kind of environment does the spring need to work in? Such as high temperature, low temperature, humidity, corrosion and so on.

Consider the performance requirements of the spring

  • How much load does the spring need to bear?
  • What is the elastic requirement of spring?
  • What is the fatigue life requirement of the spring?

Analysis of mechanical properties of materials

  • Elastic modulus: Determines the stiffness of the spring.
  • Yield strength and tensile strength: Determine the load carrying capacity of the spring.
  • Elongation and toughness: affect the deformation ability and impact resistance of the spring.

HSPR Materials

  • Stainless Steel Wire
  • Piano Wire
  • Alloy-Steel Wire
  • Copper
  • Carbon steel wire
  • Nickel

Custom Spring Applications

automobile

  • Clutch Spring
  • Valve Spring
  • Suspension Spring
  • Tensioner Spring

Aerospace

The materials used in aerospace springs need to have high strength, good plasticity and toughness, as well as excellent surface state and fatigue properties.

military

Military springs usually need to meet extremely high accuracy and reliability requirements to ensure the normal operation of equipment and ensure the safety of personnel.

industrial

There are many kinds of industrial springs, which are widely used in various mechanical equipment, meters, daily appliances and living utensils.

mining industry

Mining springs are mainly used in mining equipment to provide support, cushioning and adjustment functions.

medical

The selection and use of medical springs should strictly follow relevant medical standards and regulations to ensure their safety and effectiveness.

Ocean

Marine springs not only need to withstand seawater corrosion, but also may encounter extreme conditions such as high pressure and high temperature.

electrical appliances

The design and production of electrical spring need to take into account the working environment of electrical appliances, voltage and current requirements and service life and other factors.

Why choose HSPR

Our main customers are Germany Bosch company, Beijing Petelai, AVIC Optronics, etc. Our products are used in China Shenzhou spacecraft space project;

We have passed ISO 9001:2015, IATF-TS16949:2016 certification, have more than 4000 different specifications of spring customization experience, the annual output of more than 500 million;

37 years of custom experience, we have a mature supply chain system, we can give the most suitable solutions for customers, accurate quotation is the starting point of our high-quality service;

The world’s leading testing equipment, strict quality control system, is our confidence to get a good reputation.

Contact us

We understand the importance of communication, so we have set up a professional customer service team, ready to provide you with detailed answers and intimate service. Your needs for customized springs, questions and suggestions, or want to get a quote, you can get in touch with us, dedicated to provide you with quality service, hope to cooperate happily!

get a quote