Product Description
Our custom touch springs (also known as PCB tactile springs,
conductive springs, or button touch springs) are precision
CNC-machined from high-quality 304 stainless steel, with
passivation surface treatment for enhanced corrosion resistance and
conductivity. These springs feature a unique dual-end
large-diameter design with a compressed middle section, ensuring
consistent tactile feedback and stable electrical connection for
electronic switches. As a professional spring manufacturer, we
offer OEM and custom services, including to-order design based on
your drawings or samples, to meet the specific dimensional and
performance requirements of your projects.
Technical Specification
| Product Name | 304 Stainless Steel Touch Spring |
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| Material | 304 Stainless Steel |
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| Surface Treatment | Standard passivation, optional cleaning and plating |
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| Wire Diameter | 0.4 mm |
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| Total Coils | 22 |
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| End Outer Diameter | 9.3 mm |
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| Middle Outer Diameter | 4 mm |
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| Overall Length | 15.5 mm |
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| Manufacturing Process | One-piece forming by CNC spring machine plus deburring |
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| Dimensional Tolerance | ±0.02 mm |
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| Performance | Excellent electrical conductivity and great anti-corrosion
performance |
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Applications
Our touch springs / PCB tactile conductive button springs are
widely used in various electronic devices requiring tactile
feedback and electrical conduction: Consumer electronics, remote
controls, smart home appliances, medical equipment, automotive
interior electronics, industrial control panels, IoT devices,
membrane switches and PCB contact points.
Custom Services
As a dedicated spring manufacturer, we provide comprehensive custom
services for touch springs and related conductive springs. We
accept OEM orders and custom production according to your drawings,
samples or performance demands. We support customized dimensions
including wire diameter, coil quantity, outer diameter and overall
length. Multiple material choices and surface treatment options are
available, and we handle both small-batch and mass production.
Product Advantages
- Precision CNC Machining with tight tolerance avoids uneven spring
force and poor contact caused by low-grade products.
- Premium 304 stainless steel delivers outstanding conductivity and
corrosion resistance, preventing signal failure and spring damage
in complex working environments.
- Flexible custom service and OEM support make the springs fully
compatible with your PCB and tactile demands to solve matching
problems.
- Professional passivation treatment resists oxidation effectively,
guaranteeing stable long-term performance for frequent use.
- Integrated forming and full deburring leave smooth edges,
protecting PCBs and ensuring smooth assembly.
Quality Control
As a professional spring manufacturer, we carry out strict quality
control during the whole production process. We inspect raw 304
stainless steel materials before production. Real-time monitoring
on dimensions, coil quantity and forming precision is conducted
during CNC processing. We check deburring and cleanliness after
production. Every batch will be tested on conductivity, spring
force and dimensional accuracy. We also verify the quality of
passivation or plating to meet anti-corrosion and conductive
standards.
FAQ
Can you make custom touch springs per our drawings or samples?
Yes. We provide full custom services and OEM production to satisfy
your personalized size and performance requirements.
What material is this conductive spring made of?
The standard version adopts 304 stainless steel with passivation.
Other materials are available for custom orders.
What is the dimensional tolerance of your PCB tactile spring?
Our critical dimensional tolerance is controlled at ±0.02 mm for
stable use.
Are other surface treatments available?
Sure. Besides standard passivation, we also provide cleaning and
plating services as your requests.
Where are these button touch springs commonly applied?
They are widely used in consumer electronics, medical devices,
automotive electronics, industrial control equipment and IoT
products.