Relay Part

1. Relay Core
Made from electrically pure iron cold-rolled steel (China model No. DT4E/DT4C), combined with advanced heat treatment and demagnetization processes to ensure low coercivity and stable magnetic properties.
Features:

Excellent electromagnetic properties: low coercivity, high permeability, and high saturation magnetic induction;

Stable magnetic properties, no magnetic aging;

Dense and uniform internal structure, low porosity, and carbon content;

Suitable for cold processing such as precision stamping, cutting, and bending.

Yoke & Armature

 

Made from the same electrically pure iron material, complex structures are formed through high-precision stamping, CNC machining, or hot forging, providing a reliable magnetic flux path and mechanical support.

 

High dimensional accuracy, with plate thickness ≤1.5mm and tolerance ≤±0.03mm.

 

Excellent surface quality, easy to weld, and electroplating

 

Suitable for high-frequency, high-power switching, and fast-response relay applications.

Moving Contact Terminal

Beryllium copper is available, providing excellent electrical conductivity and mechanical flexibility.

Features:

High mechanical strength and fatigue resistance;

Customizable sizes and shapes are available to meet diverse relay design requirements.

To ensure consistent and stable electromagnetic performance, mechanical strength, and process suitability for each relay component, XIAMEN APOLLO utilizes the optimal base material and process combination for each component, ensuring a continuous magnetic circuit, reliable conductivity, and long life.

1. Relay Core
Material Selection:
Electrician Pure Iron Cold Rolled Steel (DT4E / DT4C) is used. This material has extremely low coercivity and excellent magnetic permeability, making it suitable for high-frequency and high-response relays.

Key Processing and Parameters:

Heat Treatment: High-temperature annealing for stress and coercivity relief;

Surface Treatment: Copper plating, nickel plating, or original color can be selected as required.

Thickness Tolerance: ≤ ±0.03 mm;

Processing Performance: Suitable for stamping, cutting, bending, and fine turning;

Features: Stable magnetic properties, low carbon content, dense structure, and no magnetic aging.

2. Yoke & Armature
Material Selection:
The same material as the core-DT4E/DT4C electrical pure iron ensures magnetic circuit consistency and response efficiency.

Main Process and Parameters:

Molding Process: High-precision stamping, CNC machining, or hot forging;

Sheet Thickness Range: ≤ 1.5 mm;

Dimensional Tolerance: ≤ ±0.03 mm;

Surface Treatment: Annealing for demagnetization, nickel plating, or rust-proofing;

Features: High dimensional accuracy, excellent welding and plating performance, and a continuous and reliable magnetic flux path.

3. Moving Contact Terminal
Material Selection:
Using Beryllium Copper (CuBe2) or a highly elastic copper alloy, it combines excellent electrical conductivity and mechanical resilience, making it suitable for frequent switching environments.

Key Processes and Parameters:

Heat Treatment: Solution treatment and aging treatment to enhance elasticity and fatigue resistance.

Surface Treatment: Copper plating, nickel plating on undercoat copper, and silver protective coating;

Conductivity: ≥ 20% IACS;

Elastic Recovery: ≥ 95%;

Customization: Customizable to meet customer specifications in various sizes, thicknesses, and end configurations.

4. Standardized Technical Specifications and Delivery Parameters

Excellent electromagnetic properties: low coercivity, high magnetic permeability, stable magnetic properties, and no magnetic aging.

High-quality smelting process: hot metal pretreatment, RH refining, and electric pulse stirring, resulting in a dense and uniform finished product.

Excellent cold and hot workability: Suitable for stamping, bending, drawing, turning, and other processes, with low red brittleness sensitivity.

High surface quality: Excellent welding and electroplating performance.

High dimensional accuracy: Ultra-precision cold-rolled sheet thickness ≤1.5mm, tolerance ≤±0.01mm.

XIAMEN APOLLO has its own stamping line, CNC machining center, and high-precision surface treatment workshop. Production is strictly conducted in accordance with ISO9000 and IATF16949 management systems.

Quality control includes:

Raw material composition spectroscopy and thickness testing;

Dimensional control during stamping and heat treatment;

Magnetic property and coercivity testing;

Surface welding and electroplating performance verification.

Each batch of products is provided with a traceable inspection report to ensure long-term reliable performance.

Industrial Relays, Power Relays, Signal Relays

New Energy High-Voltage DC Relays (HVDC Relays)

New Energy HVAC Relays

Automotive Relays and High-Power Metering Relays

Automation Control, Intelligent Power Distribution, Instrumentation, and Other Systems

We offer OEM/ODM customization services based on customer-provided CAD/3D/PDF files. We can perform the following:

Core, yoke, and armature structural optimization and magnetic circuit simulation;

Spring terminal shape and surface treatment customization;

Cold/hot processing optimization;

Rapid prototyping and mass production support.

Over 30 years of experience in electromagnetic metal manufacturing.

In-house production capabilities for the entire stamping, CNC machining, annealing, and electroplating process;

Monthly production capacity exceeding 50 million units with short delivery cycles;

Meets the high demands of relays in various fields, including industrial, automotive, and new energy.

Provides rapid prototype development, technical optimization, and customization services.

Our Relay Parts series combines high-precision electrical pure iron materials, advanced processing technology, and strict quality management to ensure that every core, armature, yoke, and spring terminal possesses stable magnetic properties and mechanical strength under high-frequency and high-power conditions.

XIAMEN APOLLO is committed to becoming a reliable supplier of core components for global relay and electrical equipment manufacturers.

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