Stable Magnetic High Precision Relay Iron Core Custom Solutions

High Precision Relay Iron Core for Stable Electromagnetic Performance

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.

Precision-Crafted Relay Iron Cores for Superior Electromagnetic Performance

Achieving stable and efficient electromagnetic performance starts with the quality of the core. At CAIYI, we focus on manufacturing high-precision relay iron cores that serve as the foundation of reliable and responsive relay systems. By addressing common challenges such as heat buildup and delayed response, we actively optimize both material density and structural accuracy. As a result, our CNC-machined cores enable relays to operate with minimal energy loss while maintaining exceptional reliability.

Key Technical Advantages

Enhanced Thermal Management & Reduced Energy Loss
First, we utilize carefully selected soft magnetic materials to minimize eddy current losses. Consequently, this significantly reduces heat generation and allows relays to maintain stable performance, even during continuous and long-term operation.

Fast Response & Strong Magnetic Performance
In addition, our advanced CNC machining ensures high concentricity and precise air gap control. This directly enhances magnetic force and enables near-instant switching, thereby improving overall contact reliability and operational efficiency.

Superior Structural Durability
Moreover, through strict tolerance control and optimized structural design, we eliminate dimensional inconsistencies. This not only reduces mechanical wear but also extends the service life of the entire relay assembly.

Industrial-Grade Surface Protection
To further ensure long-term durability, we offer a range of professional surface treatments, including zinc plating, nickel plating, and black oxide. These finishes effectively protect against corrosion, moisture, and oxidation, making the cores suitable for demanding environments.