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Standard Electromagnet
High-precision standard electromagnet with adjustable gap, water-cooled coils, and stable field uniformity. Ideal for MOKE and Hall effect experiments.
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1. Product Overview
The Vectomag Standard Electromagnet (EM Series) is designed based on nearly 20 years of precision magnetic system manufacturing experience.
This series features a compact structure, high energy density, and excellent long-term stability, making it suitable for continuous laboratory and industrial use.
The EM Series provides multiple configurations — 1D, 2D, and 3D universal electromagnets, as well as optional components such as rotating stages, optical holes, and customized pole heads.
It can also be custom-engineered for integration with microscopes, MOKE systems, and other scientific instruments.
Vectomag’s electromagnets are widely used in magneto-optical research, hysteresis loop measurements, magnetic field annealing, Hall effect testing, magnetic susceptibility measurement, NMR imaging, and biological magnetic experiments.
EM3 Electromagnetic Magnet
EM series electromagnet
5. System Configuration
- Main Unit: Vectomag EM Series Electromagnet
- Power Supply: Vectomag High-Precision Bipolar Source
- Cooling System: Air or water (depending on model)
- Field Control Interface: Closed-loop feedback system
- Accessories: Pole head kits, optical ports, rotation stages
2. Key Features
- Continuously adjustable pole spacing to adapt to different magnetic gap requirements
- Cylindrical and conical pole heads for achieving ideal field strength and uniformity
- Water-cooled coil design ensuring field stability and long-term reliability
- Detachable pole structure for easy pole head replacement
- High-purity soft iron pole material with precision machining for excellent field repeatability
- Optional optical access pole caps for laser and optical experiments
4. Testable Samples & Applications
- MOKE (Magneto-Optical Kerr Effect) experiments
- Magnetic hysteresis loop measurement
- Hall effect and anisotropy testing
- Magnetic field annealing and NMR applications
- Biological and materials magnetism research
6. Optional Accessories
- Motorized or manual rotation platforms
- Optical pole caps for laser beam transmission
- Precision Hall probes for field calibration
- Magnetic shielding enclosure
- Custom pole shapes for specific field geometries
Selection Parameters
| Model | EM1 | EM3 | EM4 | EM4W | EM5 | EM7 |
| Pole Size (mm) | 38 | 76 | 100 | 100 | 127 | 178 |
| Pole Tip Size (mm) | 25 | 40 | 50 | 50 | 60 | 76 |
| Coil Quantity | 2 | |||||
| Magnetic Gap Adjustment | Bi-directional | |||||
| Magnetic Field Range (mm) | 0–50 | 0–64 | 0–100 | 0–88 | 0–129 | 0–168 |
| DC Resistance (Ω @20°C) | 3.6 | 4.5 | 0.65 | 0.65 | 0.68 | 0.65 |
| Max Continuous Current (A) | ±4 | ±6 | ±20 | ±55 | ±70 | ±85 |
| Input Power (W) | 100 | 250 | 350 | 2400 | 3500 | 5400 |
| Magnetic Field Strength (T @20mm) | ≥±0.21 | ≥±0.65 | ≥±0.83 | ≥±1.5 | ≥±1.8 | ≥±2.2 |
| Field Uniformity 1%@20mm | φ5×6 | φ20×20 | φ30×18 | φ30×18 | φ30×20 | φ40×18 |
| Cooling Type | Natural Air | Water | ||||
| Water Flow (L/min) | — | 8 | 8 | 12 | ||
| Water Pressure (kPa) | — | 300–600 | ||||
| Inlet Temperature (°C) | — | 15–20 | ||||
| Weight (kg) | 6.5 | 45 | 130 | 138 | 280 | 565 |
| Recommended Power Supply | P5-40 | P10-40 | P20-40 | P6040 | P7050 | P9060 |
| Mounting Options | Horizontal / Vertical | |||||
| Optional Accessories | Electric / Manual rotating stage, optical support | |||||
| Remarks | Pole dimensions customizable per request | |||||
Magnetic Field Curve
Magnetic field linearity ensures smooth current crossover through zero, maintaining high precision field control.
(Tested under Vectomag high-precision bipolar power supply closed-loop control.)
7. Ordering Information
| Model | Magnetic Gap | Field Strength (T) | Cooling Type | Power Supply |
|---|---|---|---|---|
| EM1 | 0–50 mm | ≥0.21 | Air | P5-40 |
| EM3 | 0–64 mm | ≥0.65 | Air | P10-40 |
| EM4 | 0–100 mm | ≥0.83 | Air | P20-40 |
| EM4W | 0–88 mm | ≥1.5 | Water | P6040 |
| EM5 | 0–129 mm | ≥1.8 | Water | P7050 |
| EM7 | 0–168 mm | ≥2.2 | Water | P9060 |
For non-standard customization, please contact Vectomag technical support.
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