Air Core Electromagnet
Products Description
air core electromagnets are key components that generate magnetic fields and drive relays through coil excitation without a magnetic core. They are widely used in electromagnetic control systems requiring fast response, low loss, and high stability. Compared to traditional iron-core electromagnets, the air-core structure offers advantages such as no residual magnetism, faster response, smoother operation, and higher stability, making it an indispensable core component in modern precision control.
Our company has focused on the research and development, and manufacturing of core pins for many years. By optimizing coil structure, improving process consistency, and enhancing material properties, our products excel in durability, thermal stability, and operational reliability, making them suitable for demanding industrial designs and complex applications.
Product Properties & Key Features
Core-free Design, No Residual Magnetism, More Linear Operation
The hollow iron core structure ensures cleaner magnetic field establishment and decay, guaranteeing precise and hysteresis-free relay operation.
01
High-Speed Response Characteristics
Custom core pins are Suitable for rapid switching and high-frequency operation requirements, especially excelling in communications and industrial automation.
02
Long Lifespan, Low Energy Consumption, Low Temperature Rise
Professional electromagnet iron core winding and material selection ensure no significant attenuation during long-term stable operation.
03
Strong Anti-interference Capability
The ferromagnetic material-free structure avoids interference from external magnetic fields, making it suitable for complex electromagnetic environments.
04
Compact Structure, Strong Compatibility
Customizable inner diameter, wire diameter, number of turns, and external shape to meet multi-platform assembly needs.
05
Technical Features: The Innovative Code Hidden Behind the Magnetic Field
Low-Power Consumption Technology
After attraction, a "current step-down" algorithm (e.g., peak current 2A → holding current 0.5A), combined with a PWM controller (frequency 20kHz), reduces power consumption by 60% while maintaining attraction force, preventing overheating of the electromagnet soft iron core and aging of the enameled wire.
Temperature Compensation Mechanism
An integrated NTC thermistor (accuracy ±1℃) monitors the coil temperature in real time and dynamically adjusts the supply voltage through a feedback circuit, ensuring magnetic output deviation <5% across the entire temperature range of -40℃ to 125℃.
Shock-Resistant Structural Design
The soft iron core electromagnet and frame are bonded using an interference fit and anaerobic adhesive, achieving shock resistance up to standard (50g/11ms half-sine wave impact without loosening), suitable for vibration scenarios such as engineering machinery and automotive equipment.
Application Scenarios - Driving Innovation in Cutting-Edge Fields
Medical and Life Sciences
Shimming soft iron electromagnet in high-field MRI systems, ion guidance and focusing systems in mass spectrometers, and the driving source for precision drug delivery pumps.
Scientific and Industrial Instruments
Calibration magnets in particle accelerators, plasma control cores in electromagnets in semiconductor processing, and active vibration isolation systems for high-precision optical platforms.
High-End Communication and Sensing
Antenna tuning Soft Magnetic lron Relay Cores for radio frequency identification (RFID) readers, and the detection core of high-sensitivity fluxgate sensors.
Next-Generation Transportation and Energy
Plasma control coils in nuclear fusion devices and guiding magnets for magnetic levitation systems.
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