JCL Precision Part Co.,Ltd.
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Spring Contacts

Spring contacts are small metal pieces made to flex. When used in electrical plugs and connectors, these springy metal pieces press against metal pads or pins in the other half of the connector. The pressure keeps electricity flowing smoothly between the two connected devices. Contact springs allow many connect and disconnect cycles without losing this electric contact. So spring contacts are very helpful in plugs and charging cables that get unplugged and replugged often. Their flexibility and durability make reliable electric connections that can last through lots of recharges and connections.

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About JCL

JCL has started to make electronic components since 2010, our team has exprience in various types of spring contacts in different models and materials. We are going to provide deep understanding in our analysis and design report once acquire your drawing and tolerance requirement. Our goal is to present our skills and capability to long lasting customers who reconigize the funtamental and breakthrough effort we bring in the projects.


                Custom Metal Stamping Process of Spring Contacts


Proprietary Die Design 

JCL engineers employ extensive simulation and analysis to develop state-of-the-art progressive stamping dies customized for the spring contact geometries and material properties. This enables precise execution of complex forming for custom metal stamping.

Automated Metal Preparation Lines 

Custom coils and strips of high conductivity alloys like beryllium copper, phosphor bronze undergo automated cut-to-length blanking or reel-to-reel processing as preparation for high efficiency stamping operations.

High-Speed Precision 

JCL operates advanced progressive stamping presses, including 1000 metric ton capacity, enabling tailored contact blanks through precision stamping processes with forces exceeding 100,000 psi for property enhancement.

Secondary Processing 

Formed spring contact blanks are further processed in inline or standalone systems to achieve final shapes like coils, loops, torsion springs, cantilevers through secondary stamping steps.

Finishing and Terminal Crimping 

Back-end robotic automation enables deburring, electropolishing, crimping, testing and quality analysis to finish contacts post stamping operations for connector integration with capacities scaled to high volumes.


                    Major Advantages of Stamped Spring Contacts

Complex Geometries 

As mentioned previously, stamping enables intricate contact shapes impractical through other manufacturing approaches. This empowers connector designs for challenging applications.

High Production Efficiency 

The progressive stamping process allows very rapid production of spring contacts once the dies are ready. Quality consistency across millions of contacts enables cost-efficient mass manufacturing.

Property Control

Stamping induces favorable compressive stresses up to 100,000 psi to transform properties. This augments electrical connectivity and mechanical reliability of the spring contacts over other methods.

Miniaturization Capabilities

Precision progressive stamping can fabricate remarkably small, reliable contact springs. It can achieve thin walls, tight tolerances and microscale features difficult otherwise, enabling miniaturized connectors.

Design Flexibility 

In addition to 3D forming, secondary operations like bending, twisting, crimping, punching enable diverse spring contact types like coils, torsion springs, cantilevers, and customizable interface geometries.



 Different Application Areas Of Stamped Spring Contacts

Electronic Connectors

Stamped spring contacts excel in electronic interconnects, from oxidation-resistant gold-plated pins in desktop computer and device ports to high-speed, high-frequency contacts in automotive control systems and precision instruments. Their resilience handles 1000s of insertion cycles.

Battery Management Systems 

Stamped lithium-ion battery connectors integrate formed beryllium copper alloy spring contacts. The reactive-element spring properties maintain constant pressure accommodating cell stack expansion-contraction to improve battery pack safety, thermal performance, and electrical conduction over life cycles.

Power Transmission and Distribution

Robust power connectors employed in high voltage AC-DC industrial and utility grids utilize special alloys like Incoloy and conductive composites. The materials and progressive forming provide anti-corrosion contact springs conducting over 1000 amperes under extreme temperatures, stresses for decades.

Automotive Systems 

Stamped terminals and connectors are ubiquitous in vehicles for signal and power transfer in constrained, high temperature environments. Contacts in engine control modules, transmission devices, hybrid circuits withstand vibration, fuels, oils over lifetimes owing to stamping alloys and resilience.

Consumer Devices 

Miniature connectors with stamped cantilever, coil or torsion spring contacts reliably interconnect displays, sensors, logic boards, accessories in smartphones and portable electronics. The contacts maintain low-resistance connections despite frequent use thanks to resilient conductive alloys and intricate forming.


      Why Choose JCL for Custom Metal Stamping Spring Contacts

Innovative Stamping Process

We have in house expert employees who can handle the spring contacts stamping process skillfully. With that we will have innovative machinery to conduct the whole process in our factory. Through our stamping presses and tools, our team can stamp spring contacts to any shape or size.

Unique Spring Design


At JCL we have engineers who are capable of designing unique spring contacts. They understand how material thickness, coil shape and number can affect the performance of spring contacts. Our engineers make sure that everything aligns with the design so it can perform well. Before starting the manufacturing, our team tests the design if it is functional or not for the particular application. 

Advanced Plating System

We also have an advanced plating system to coat your spring contacts. We have electroplating lines that we use to apply layers of tin, gold or other materials in our spring contacts. Through our plating system we ensure that we apply a consistent thick material in all of our spring contacts. 


Quality Control

Manufacturing quality spring contacts for our customers is our top priority. To ensure we manufacture quality products for you, we use an automated vision inspection system. With that we also conduct electrical and mechanical testing to ensure that our spring contacts will perform according to our customers expectation. 


Rapid Prototyping

We know how much the right design matters for your metal spring contact. For this reason we give our customers the option for rapid prototyping and design irritation. We will create the prototype sample and send it to you for your approval. We will fine tune the spring design contacts until it's satisfy you. Our team will start the manufacturing process only after having your approval.


Contact Us

We are excited to collaborate with you! 

If you have any questions about our products or require custom machining services, please don’t hesitate to reach out to us. We are here to assist you and provide the solutions you need.

Building A, No. 2 Shiquanling Road, Zhenjiang Sub-district, HZZK Hi-tech Industrial Development Zone, Huizhou