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.

Solve Overheating & Energy Loss

Conventional iron cores often suffer from high magnetic loss and heat buildup, leading to unstable performance over time.Our optimized magnetic material and structure design effectively reduce energy loss and control temperature rise, ensuring stable operation.

Stronger Magnetic Force, Faster Response

Weak or inconsistent magnetic force can cause delayed switching and poor contact reliability.With precise air gap control and high concentricity machining, our iron core delivers stronger attraction force and faster response.

Extended Service Life

Inconsistent dimensions and poor structure can accelerate wear and shorten lifespan.We apply strict tolerance control and robust structural design to ensure long-term durability and performance stability.

Consistent Quality in Mass Production

Performance variation across batches is a common issue in relay components.Our CNC precision machining and standardized production process guarantee high consistency for every unit.

Enhanced Surface Protection

Exposure to harsh environments can lead to corrosion and performance degradation.Optional surface treatments such as zinc plating, nickel plating, or black oxide improve corrosion resistance and extend service life.

OEM Customization Support

From material selection to structural optimization, we provide full OEM customization to match your specific relay design and application requirements.