Precision Electromagnet & Helmholtz Coil Systems for Cutting-Edge Research
Our Magnet & Field Systems provide precision electromagnetic field generation and control, integrating high-performance electromagnets and Helmholtz coils with advanced power supplies. Ideal for magnetoresistance, Hall effect, sensor calibration, and materials research experiments.
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1. Pain Points & Solutions
We understand the challenges researchers face in magnetic field experimentation – and we’ve engineered our solutions to tackle them head-on:
- Challenge: Achieving a strong yet uniform magnetic field for experiments can be difficult with standard equipment. Solution: Our electromagnet systems deliver high magnetic field strengths (up to 2.2 T) with excellent uniformity (~1% in the central zone), ensuring reliable and consistent experimental conditions.
- Challenge: Many magnet setups overheat or drift during long experiments, risking data integrity. Solution: Cryomagtech designs include water-cooled coils and stable current regulation, enabling continuous operation with negligible field drift (<0.1% per hour) for long-term stability.
- Challenge: Complex experiments may require magnetic fields from multiple directions or fine control that off-the-shelf magnets can’t provide. Solution: We offer customizable multi-axis Helmholtz coil systems and vector electromagnets, giving researchers 2D/3D field control and programmable field sweeps to simulate complex magnetic environments easily.
- Challenge: Piecing together a magnet, power supply, and control system from different vendors is time-consuming and prone to compatibility issues. Solution: Cryomagtech provides turnkey magnetic field solutions – each system comes integrated with matched power supplies, control software, and safety features, so you can plug it in and focus on your research, not on system integration.
2. Core Advantages
Our Magnet & Field Systems offer a blend of performance and reliability that stands out in the industry:
- High Field Strength & Uniformity: Generate magnetic fields up to 2.2 T with center-field uniformity better than 1%, enabling accurate and repeatable measurements for even the most sensitive experiments.
- Continuous Stable Operation: Designed for 24/7 use – water-cooled coils and precision current control ensure <0.1% field drift over hours of operation, so long experiments can run without interruption.
- Multi-Axis Field Control: Beyond standard C-frame and H-frame electromagnets, we provide 2-axis and 3-axis vector electromagnet configurations and Helmholtz coil systems, allowing you to produce complex 3D magnetic field vectors or quickly switch field orientation as needed.
- Flexible Configurations: Adjustable pole gaps, interchangeable pole caps (flat, conical, optical access), and various coil geometries let you tailor the magnetic field region and access for different sample sizes and experimental setups. Custom shapes and sizes are available to fit your unique requirements.
- Turnkey Integration & Support: Each system is delivered with an integrated digital power supply, closed-loop control software, and all necessary sensors. Our engineers offer installation guidance and responsive support, ensuring you achieve optimal performance from day one.
3. Product Overview
Cryomagtech’s Magnet & Field Systems are divided into two core product lines, each designed to meet different magnetic field needs in the lab:
3.1 Electromagnets (C-frame & H-frame Electromagnet Series)
Our electromagnet series (EM Series) includes a range of compact yet powerful magnets, from small benchtop models to large high-field magnets. These electromagnets feature robust iron yokes and precision-coiled windings that concentrate field into a variable gap between high-purity pole pieces. We offer both C-frame designs (open single-yoke structure) and H-frame designs (dual-yoke, double-coil structure) to accommodate different sample access and field orientations. Each magnet has an adjustable pole gap and interchangeable pole heads (flat or tapered) to optimize field strength and uniformity for your experiment.
Thanks to nearly 20 years of magnet engineering expertise behind our designs, Cryomagtech electromagnets achieve high energy density while maintaining stability. Multi-axis options: We provide 1D (single-axis) standard electromagnets as well as 2D/3D vector electromagnets for researchers who need to apply magnetic fields in multiple directions simultaneously. For specialized applications like magneto-optical Kerr effect (MOKE) or microscopy, optional accessories such as motorized rotation stages and optical access pole caps are available. All electromagnets integrate seamlessly with our programmable bipolar power supplies and offer safety interlocks (e.g. over-temperature protection) for worry-free operation.
Standard Dipole Electromagnets (C-Frame & H-Frame)
Custom & Special Electromagnets
Vector & Multi-Axis Electromagnets (2D / 3D Field Control)
3.2 Helmholtz Coils (Single-axis & Three-Axis Coil Systems)
Our Helmholtz coil systems produce extremely uniform magnetic fields within an open, accessible volume, making them ideal for experiments requiring homogeneous fields or field cancellation. Cryomagtech offers Helmholtz coils in single-axis, two-axis, and three-axis configurations. Single-axis Helmholtz coils generate a uniform field along one direction – perfect for calibrating magnetometers or cancelling Earth’s magnetic field. Two-axis and three-axis Helmholtz systems consist of perpendicular coil pairs that create vector magnetic fields in X, Y, and Z directions, with the ability to combine axes for precise field orientation control (true 3D field simulation).
Our coils are available in various shapes (circular, square, or rectangular frames) and sizes, from small tabletop pairs to large custom-built coil sets exceeding 1 meter in diameter. Each coil pair is carefully wound and aligned to achieve a high degree of field uniformity (often ±0.1% or better over the central volume). We equip these systems with high-precision constant current sources and feedback control: you can program AC or DC fields with linearity and stability, and even perform automated field ramps and reversals. Because of their open structure, Helmholtz coils easily accommodate larger samples or other equipment (such as test chambers or sensors) at the center of the field. For special requirements, Cryomagtech engineers can design custom Helmholtz setups – for example, three-axis Helmholtz systems with equal coil diameters for symmetric fields, or “zero magnetic moment” coil arrangements that minimize external stray fields.
4. Technical Specifications
Every Cryomagtech magnet system is built on a foundation of rigorous engineering and comes with detailed specifications. Here is a snapshot of what you can expect from our electromagnets and Helmholtz coils:
- Magnetic Field Range: Electromagnets offer field strengths from ~0.2 T up to approximately 2.2 T (depending on model and gap) for high-field experiments. Helmholtz coils cover field ranges from near-zero (for geomagnetic field cancellation) up to hundreds of mT – and in specialized small-coil designs can even reach ~1–2 T – all while maintaining uniformity.
- Field Uniformity: Electromagnet systems provide ~1% uniformity at the center of the pole gap (e.g. over a 20 mm sample region), focusing the field on your target. Helmholtz systems are designed for ultra-high uniformity, typically ±0.1% or better across the central volume, ideal for calibration and precision tests.
- Coil/Pole Dimensions: Electromagnets feature pole diameters from 38 mm up to 178 mm, with adjustable gap distances to accommodate different sample sizes or inserts. Helmholtz coils come in various diameters – standard models range from ~100 mm up to 1000 mm, and we can customize coil size and shape to your needs.
- Cooling & Duty Cycle: Small electromagnets are air-cooled for convenience, while larger high-field models include water-cooling channels allowing continuous operation at maximum current without overheating. Helmholtz coils are available in both air-cooled designs (sufficient for low to moderate fields) and water-cooled versions for high-power applications, ensuring stable long-duration output in either case.
- Power Supply & Control: All systems use precision bipolar current supplies with low ripple and fine resolution. For example, our largest electromagnet systems are paired with power supplies up to ~90 V / 60 A output capability to drive the coils at full field. Each system supports computer control (USB/Ethernet) and closed-loop field feedback (using gaussmeter input) to automate sweeps, field ramping, and stability management. Safety interlocks (over-current, coil temperature, etc.) are built-in for safe operation.
4.1 Standard Electromagnets 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 | |||||
4.2 Helmholtz Coils Typical Parameters
| Model | Radius (mm) | Center magnetic field (Gs) | Uniformity % | Homogeneity sphere diameter (mm) | Each dimension power range(W) | The One dimensional weight (Kg) |
| HC30-50 | 300 | 50 | 5 | 200 | 420 | 55 |
| 1 | 150 | |||||
| HC30-10 | 300 | 10 | 0.5 | 100 | 90-120 | 12 |
| 0.1 | 90 | |||||
| HC30-2 | 300 | 2 | 0.05 | 60 | 18~32 | 3.5 |
| 0.01 | 40 | |||||
| HC25-1000 | 250 | 1000 | 5 | 160 | 5000 | 500 |
| 1 | 125 | |||||
| HC25-500 | 250 | 500 | 0.5 | 100 | 2500 | 250 |
| 0.1 | 75 | |||||
| HC25-300 | 250 | 300 | 0.05 | 50 | 1600 | 150 |
| 0.01 | 33 | |||||
| HC25-100 | 250 | 100 | 5 | 160 | 600 | 50 |
| 1 | 125 | |||||
| HC25-50 | 250 | 50 | 0.5 | 100 | 300~620 | 30 |
| 0.1 | 75 | |||||
| HC25-10 | 250 | 10 | 0.05 | 50 | 60~110 | 8 |
| 0.01 | 33 | |||||
| HC25-2 | 250 | 2 | 5 | 160 | 12~18 | 4 |
| 1 | 125 | |||||
| HC20-500 | 200 | 500 | 0.5 | 80 | 2000 | 160 |
| 0.1 | 60 | |||||
| HC20-300 | 200 | 300 | 0.05 | 40 | 1000 | 96 |
| 0.01 | 26 | |||||
| HC20-100 | 200 | 100 | 5 | 130 | 350 | 32 |
| 1 | 100 | |||||
| HC20-50 | 200 | 50 | 0.5 | 80 | 200~520 | 16 |
| 0.1 | 60 | |||||
| HC20-10 | 200 | 10 | 0.05 | 40 | 40~65 | 8 |
| 0.01 | 26 | |||||
| HC20-5 | 200 | 5 | 1 | 100 | 20~32 | 6 |
| 0.1 | 60 | |||||
| HC20-2 | 200 | 2 | 1 | 100 | 8~10 | 4 |
| 0.1 | 60 | |||||
| HC15-300 | 150 | 300 | 5 | 100 | 660 | 54 |
| 1 | 75 | |||||
| HC15-100 | 150 | 100 | 0.5 | 60 | 220 | 18 |
| 0.1 | 45 | |||||
| HC15-50 | 150 | 50 | 0.05 | 30 | 110~330 | 12 |
| 0.01 | 20 | |||||
| HC15-10 | 150 | 10 | 1 | 75 | 21~42 | 6 |
| 0.1 | 45 | |||||
| HC10-200 | 100 | 200 | 5 | 66 | 200 | 19 |
| 1 | 50 | |||||
| HC10-100 | 100 | 100 | 0.5 | 40 | 100 | 15 |
| 0.1 | 30 | |||||
| HC10-50 | 100 | 50 | 0.05 | 20 | 50~180 | 9 |
| 0.01 | 10 | |||||
| HC10-10 | 100 | 10 | 1 | 50 | 10~24 | 3.5 |
| 0.1 | 30 | |||||
| HC7-100 | 70 | 100 | 5 | 45 | 50 | 7 |
| 1 | 35 | |||||
| HC7-50 | 70 | 50 | 0.5 | 28 | 24~120 | 5 |
| 0.1 | 21 |
5. Application Scenarios
Cryomagtech Magnet & Field Systems empower a wide range of scientific and engineering applications. Here are just a few scenarios where our electromagnets and Helmholtz coils are making an impact:
- Materials Characterization: Generate strong magnetic fields for magnetization curves, hysteresis loop measurements, and magnetic phase transition studies. For example, our systems are used in studying ferromagnetic and spintronic materials, providing stable high fields for VSM (vibrating sample magnetometer) and magneto-optical Kerr effect experiments.
- Hall Effect & Magnetoresistance Experiments: Precisely control field strength and direction for semiconductor Hall effect measurements, MR (magnetoresistance) tests, and other electronic transport experiments. Researchers use our electromagnets to sweep fields while measuring electrical properties, benefiting from the low field ripple and fine-tuned control.
- Sensor Calibration & Testing: Achieve a known uniform field environment to calibrate magnetometers, compasses, and other magnetic sensors. Our three-axis Helmholtz coil systems allow calibration of sensors in all orientations, and can null out Earth’s field to microtesla levels. Industrial manufacturers and standards labs rely on these systems for certifying sensor accuracy.
- Biological & Medical Research: Apply controlled magnetic fields in biomedical experiments – for instance, studying magnetic nanoparticle behavior, performing magneto-stimulation on biological samples, or shielding sensitive biophysical experiments from external fields. The high stability and low noise of Cryomagtech’s field systems are crucial for reproducible results in life sciences.
- Magnetic Field Simulation & Cancellation: Create custom field profiles for special experiments, such as simulating Earth’s varying magnetic field for space instrument testing, or cancelling ambient fields in quantum optics experiments. With programmable multi-axis coils, users can generate complex time-varying field sequences or maintain zero-field environments on demand.
- Educational & Demonstration Use: Universities and training labs utilize our magnets and coil systems to demonstrate fundamental physics principles (e.g. Lorentz force, NMR basics) and to train the next generation of scientists and engineers on state-of-the-art research equipment.
With clients in more than 20 countries and over 50 systems installed worldwide, our electromagnet and Helmholtz solutions support research from fundamental physics to advanced engineering—driving progress in physics, materials science, electrical engineering, and beyond.
6. Testimonials or Trust Proofs
“The Cryomagtech electromagnet system has been a game-changer for our lab. We can achieve a stable 1.5 T field for hours, which significantly improved the consistency of our Hall effect measurements. The setup was plug-and-play, and the support team guided us through optimization. Our experiments are now more reliable than ever.”
– Senior Researcher, Leading University Laboratory
Our commitment to quality and customer success is backed by tangible credentials and results:
- Proven Track Record: Over 50 universities and research institutes worldwide use our systems. From nationally funded labs in Germany and Japan to start-up R&D companies in the USA, our equipment is driving innovation worldwide.
- Certified Quality: We manufacture under an ISO 9001-certified quality management system, and all products are CE certified to meet international safety standards. This ensures every magnet and coil leaving our facility has been rigorously tested for performance and safety.
- Innovation & Expertise: Our team holds multiple patents in magnet design and control technology, reflecting our 20 years of specialized experience. Cryomagtech may be a focused, smaller enterprise, but this “small and expert” approach means personalized service and cutting-edge engineering for our customers.
Rest assured, when you choose Cryomagtech, you’re partnering with a company that has a reputation for reliability and an unwavering dedication to scientific advancement.
7. About Cryomagtech
Cryomagtech was founded by a group of veteran engineers in magnetics and cryogenics who shared a vision: to make advanced magnetic field technology accessible to scientists and engineers everywhere. With our roots in the research community, we operate “by engineers, for engineers,” designing solutions that we ourselves would want to use in the lab.
Over the past 20 years, our team has developed a deep expertise in electromagnet and cryogenic system design. We’ve grown from a small startup to a global provider of high-value magnet & field systems, all while maintaining the agility and customer focus of a specialized firm. Our core values are innovation, quality, and partnership – we work closely with each customer to tailor systems that meet their specific experimental needs.
Today, Cryomagtech serves clients in more than 20 countries and continues to push the boundaries of what’s possible in laboratory magnetic field generation. Whether it’s a standard electromagnet or a one-of-a-kind custom coil assembly, we approach every project with the same dedication and scientific rigor. Our mission is to empower your breakthroughs with the right magnetic field solutions.
8. Frequently Asked Questions (FAQ)
Q: Electromagnet vs. Helmholtz coil – which one is right for my application?
A: It depends on your needs. If you require very high magnetic field strength concentrated in a small region (for example, to saturate a material or achieve a large Zeeman effect), an electromagnet is typically best. Our electromagnets can reach multiple teslas in field strength. On the other hand, if you need an extremely uniform field over a larger volume or in multiple orientations (such as for calibrating instruments or creating a known low-field environment), a Helmholtz coil system is ideal. Helmholtz coils produce highly homogeneous fields and are excellent for simulating or cancelling ambient fields. We’re happy to assess your requirements and recommend the optimal solution.
Q: Can I request a custom magnetic field system?
A: Absolutely. Custom design is one of Cryomagtech’s core strengths. We routinely tailor electromagnet poles, coil geometries, sizes, and cooling methods to meet specific customer specifications. Whether you need a non-standard gap size, a special coil shape, higher field in a certain volume, or integration with your existing apparatus, our engineering team will work with you to develop a custom magnet or Helmholtz coil system. Simply let us know your requirements – field strength, uniformity, space constraints, etc. – and we will propose a design and quote for you.
Q: What is the typical lead time for an order?
A: Lead times depend on the complexity of the system, but generally our standard electromagnets and coil systems ship in about 4–8 weeks from order confirmation. Custom designs may take a bit longer (8–12 weeks) due to engineering and fabrication time. We understand project deadlines are important: our team will provide a clear delivery estimate during the quote stage, and we can often accommodate urgent timelines when necessary.
Q: Do the Magnet & Field Systems include everything needed to run experiments?
A: Yes – our systems are delivered as turnkey solutions. Every Cryomagtech magnet or Helmholtz coil system comes with the matched power supply (or supplies for multi-axis setups), digital control software, necessary cables, and basic mounting hardware. We also include documentation and an operation manual. In short, you receive all the components required to generate and control the magnetic field out-of-the-box. (In some cases you may choose to purchase a gaussmeter or other measurement device separately, but we can provide those as well if needed.)
Q: What kind of support and warranty do you provide?
A: We stand behind our products. All Cryomagtech Magnet & Field Systems come with a standard 12-month warranty covering any manufacturing defects or failures under normal use. In addition, we provide lifetime technical support – meaning you can contact us anytime for help with setup, operation, or troubleshooting for as long as you own the system. Our support engineers can assist via email, phone, or video call, and for complex setups we can arrange on-site support or installation assistance (either by our team or through local partners). Your success is our priority, and we strive to respond to inquiries within one business day.
9. Call to Action (CTA)
Ready to elevate your research with a custom electromagnet solution? Contact our team today and let’s discuss your project requirements. Whether you need a quote, technical consultation, or just have questions, we’re here to help.
Fill out your requirements in under 1 minute and our engineers will get back to you within 24 hours. We value your time and aim to provide a prompt, informative response.