Working Principle
Spiral Spring Pins feature a multi-coil rolled structure that compresses during installation and expands inside the hole to generate uniform radial pressure. This flexible design creates a secure self-locking connection while distributing installation stress evenly across the pin body. Compared with traditional slotted pins, the spiral structure helps reduce stress concentration, improve fatigue resistance, and maintain stable fastening performance under vibration and dynamic loading conditions.
Structural Advantages
Multi-Coil Design
Provides flexible compression and more uniform load distribution during installation and operation.
Reduced Stress Concentration
The layered spiral structure minimizes localized stress, improving fatigue performance and service life.
Excellent Vibration Resistance
Maintains reliable fastening performance under shock, vibration, and repeated dynamic loads.
Hole Protection Performance
Flexible structure helps reduce hole deformation and wear during assembly and repeated use.
OEM & Custom Manufacturing
We provide OEM and custom manufacturing solutions for spiral spring pins according to different industrial and engineering requirements. Both standard and non-standard specifications can be produced based on drawings, samples, or technical requirements.
Custom Dimensions & Tolerances
Support customized diameter, length, and tolerance for different assembly applications.
Material & Surface Options
Multiple material grades and surface treatments available according to strength and corrosion resistance requirements.
Stable Mass Production Capability
Supports bulk industrial supply with consistent quality control and reliable production stability.
Drawing-Based Production Support
Engineering and OEM projects are supported with flexible manufacturing solutions
Applications
Automotive Systems
Used in vehicle assemblies, transmission systems, and components exposed to vibration and dynamic loads.
Industrial Machinery
Suitable for heavy machinery, mechanical equipment, and industrial production systems requiring reliable fastening performance.
Automation Equipment
Applied in automation systems, fixtures, and precision equipment requiring stable positioning and repeated assembly.
Power & Engineering Equipment
Widely used in engineering machinery and power transmission equipment operating under cyclic loading conditions.
FAQ
What is the advantage of a spiral structure compared to slotted designs?
The multi-coil structure distributes stress more evenly, helping improve fatigue resistance and reduce stress concentration during operation.
Are these pins suitable for dynamic load applications?
Yes, they are designed for environments with vibration, shock, and repeated movement, providing stable fastening performance under dynamic conditions.
Can you manufacture custom specifications?
Yes, custom diameters, lengths, materials, tolerances, and surface finishes are available according to drawings or technical requirements.
What industries commonly use this type of fastening solution?
They are widely used in automotive systems, industrial machinery, automation equipment, power transmission systems, and heavy engineering applications.
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