High-Precision Relay Components for Reliable Power Control

1. Material: Made of low-carbon steel or high-permeability soft magnetic steel (such as pure iron, DT4, 1010/1020 steel), possessing good magnetic permeability and low coercivity.

2. Shape and Structure: The overall structure is cylindrical with a flat cut edge on the outer side (anti-rotation design), and a stepped concave structure at the top.

3. Size Range: Outer diameter is typically within the range of Φ10–Φ50 mm, and height 10–40 mm can be customized; internal hole diameter and step dimensions are precisely matched according to relay specifications, and OEM customization is supported.

4. Internal Design: The inner hole adopts a multi-stage stepped design + center thread/locating hole design to effectively control the air gap and improve magnetic flux density.

5. Surface Treatment: The outer surface is precision machined with a delicate brushed metal texture; zinc plating, nickel plating, or blackening treatments are available to improve corrosion resistance and environmental adaptability.

6. Manufacturing process: CNC precision turning is adopted, and the tolerance of key dimensions can be controlled within ±0.001mm; key contact surfaces are precision machined or ground to ensure coaxiality and magnetic performance consistency.

Reliable Switching Performance

Engineered with high-precision components to ensure stable and consistent switching performance in demanding electrical systems.
Delivers reliable operation under variable voltage, current fluctuations, and harsh working conditions.

Efficient Power Control

Designed to support stable current transmission and power management in EV, automotive, and industrial applications.
Provides effective protection against overload, voltage fluctuations, and electrical stress, improving overall system safety.

Precision Manufacturing Excellence

Manufactured with premium conductive materials and advanced CNC machining processes.
Ensures excellent conductivity, dimensional accuracy, and long-term reliability for critical electrical components.

Compact & Optimized Design

Features a compact structure that enables easy integration into automotive electronics, EV systems, and industrial equipment.
Maximizes space efficiency while maintaining stable electrical performance.

Enhanced Durability & Stability

Built with heat-resistant, wear-resistant materials to withstand high-current and long-term operating environments.
Maintains reliable performance under vibration, temperature changes, and demanding electrical conditions.

OEM/ODM Customization Capability

Provides custom relay components and precision machined solutions tailored to EV, automotive, and industrial applications.
Supports customization of materials, dimensions, surface treatments, and performance requirements.

Contact Us

Upgrade your electrical systems with high-precision custom relay components from Caiyi Precision.
Contact us today for reliable, customized solutions designed for superior performance and long service life.