U Shaped Neodymium Magnets Manufacturer – Custom & Wholesale from China
Being a leading Permanent magnets Factory, we specialize in manufacturing high-performance U shaped neodymium magnets also known as Horse shoe magnetand other magnet such as Educational magnets,Disc,Block,Round Etc...Our Powerful magnet face to All over the world, mainly ship to North/South America,Europe, Asian also Indiamart. Our focus on magnets gives our customers full confidence in us. About the magnet we can customized the shape,coating,grade,and magnetizing diretion.So we can meet customers' high-precision requirements and some special requirements.When we're facing 100 customer's requirement we'll also have 100 or more than 100 solution for customer.
Our U Shaped Neodymium Magnet Samples
We provide a variety of U shaped magnet samples in different sizes, grades (N35–N52), and coatings. You can request a free sample to test magnetic strength and fit before placing bulk orders.
Horseshoe Neodymium Magnets
Small-U-Shaped-Neodymium-Magnets
Series Specification Comparison
Side-by-side comparison of all four U-shaped magnet series. Use this table to quickly identify the right series for your application requirements. Click each series page to view the full specification sheet.
|
Series |
Size Range |
Pull Force Range |
Grade Options |
Tolerance |
Key Applications |
|
Strong U-Shaped |
25 – 80 mm |
5 – 95 kg |
N35 – N52 |
±0.1 mm |
Fixtures, automation, door catches |
|
Large U-Shaped |
80 – 200 mm |
80 – 220 kg |
N35 – N48 |
±0.15 mm |
Heavy lifting, steel handling, molds |
|
Horseshoe NdFeB |
20 – 100 mm |
3 – 80 kg |
N35 – N52 |
±0.1 mm |
Education, instruments, pickup tools |
|
Small U-Shaped |
5 – 25 mm |
1.5 – 8.5 kg |
N35 – N52 |
±0.03–0.05 mm |
Electronics, sensors, medical devices |
|
Custom Sizes |
3 – 300 mm+ |
Custom |
N35–N52, SH/UH/EH |
Custom |
Specialized applications |
How to Choose the Right U-Shaped Magnet
Not sure which U-shaped magnet series is right for you? Use this quick selection guide based on your key requirements.
Five key factors to consider when selecting U-shaped magnets. If you are still uncertain after reviewing, send your application details and requirements to Fullzen sales engineers. We will provide professional product recommendation within 12 hours.
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Select by pull force requirement
Pull force is the most intuitive indicator. Choose the mini series for light-duty holding under 10kg, standard series for industrial use of 10–80kg, and large series for heavy lifting over 80kg.
Note: The rated pull force is measured under ideal contact conditions. Actual force will be affected by air gap, surface flatness and material of the attracted workpiece. We recommend reserving a safety margin of 50–70% of the rated value.
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Select by installation space
Confirm your available mounting dimensions first, then pick the largest possible model within the space (larger volume = stronger pull force). The pull force of U-shaped magnets mainly depends on magnet volume and pole area; larger pole area delivers stronger attraction.
If space is limited but higher pull force is needed, upgrade the magnet grade (e.g. from N35 to N52) or adopt steel housing for magnetic concentration.
- Select by operating temperature
NdFeB magnets have temperature limits; exceeding the maximum temperature will cause irreversible demagnetization.
Standard N grades (N35–N52): 80°C; SH:150°C; UH:180°C; EH:200°C.
For high-temperature environments, select corresponding high-temperature grades. Fullzen can provide high-temperature aging test verification.
- Select by working environment & coating
Ni-Cu-Ni coating for dry indoor conditions. Epoxy coating for humid or outdoor environments with superior corrosion resistance. Parylene or gold coating for medical and food equipment. Zinc or tin plating for welding or conductive applications.
NdFeB material is prone to rust. Proper coating selection is critical for service life.
- Select by precision requirement
For sensors and precision instruments requiring tight dimensional tolerance and consistent magnetic performance, our precision mini series is recommended (tolerance ±0.03mm, flux consistency ±3%).
Standard tolerance (±0.1mm) is cost-effective for regular industrial fixtures and lifting. Custom high precision available upon request.
Request a Free Sample – Test Our Quality Before Bulk Order
Why U-Shaped Magnets Deliver Maximum Holding Force
The U-shaped configuration concentrates magnetic flux between the two poles — creating a focused, high-density magnetic field that delivers far more effective holding force than equivalent bar or block magnets.
U-shaped magnets are widely used in industrial holding, positioning and sensing applications, thanks to their unique magnetic circuit structure. Understanding this principle helps you evaluate whether U-shaped magnets suit your application and optimize dimensional design.
Industrial Applications
Fullzen U-shaped neodymium magnets serve six major industry sectors, where reliable holding force, precise positioning and consistent magnetic performance are critical.
Factory Direct Quality & Custom Options
Fullzen is a direct neodymium magnet manufacturer with over 10 years of experience. We own the full production line for U-shaped magnets from blanks to finished goods, enabling full process control. This translates to reliable quality, shorter lead times, competitive pricing and strong customization capabilities.
Direct Factory Advantages：
•Annual capacity: 500 tons; monthly U-shaped magnet output over 2 million pcs, capable of large-volume orders
• Complete certifications: ISO 9001, IATF 16949, RoHS, REACH
• Full-process quality control. 100% visual & dimensional inspection for finished goods; 100% magnetic performance test for key
Customization Services：
• Custom sizes: 3mm up to 300mm+, customizable dimensions and opening angles
• Grades: N35–N52, SH/UH/EH high-temperature grades; optimal grade recommendation per application
• Coatings: Ni-Cu-Ni, epoxy, zinc plating, Parylene, gold plating and more
• Structural customization: mounting holes, tapped holes, steel housing, integrated assemblies
• Sample lead time: 7–10 days; mass production: 20–30 days, flexible MOQ
IATF16949
IECQ
ISO9001
ISO13485
ISOIEC27001
SA8000
Full Solutions From Neodymium Magnet Manufacturer
Fullzen Technology is ready to help you with your project by developing and manufacturing Neodymium Magnet. Our assistance can help you complete your project on time and within budget. We have several solutions to help you succeed.
Supplier Management
Our excellent supplier management and supply chain control management can help our clients to obtain a quick and accurate delivery of quality products.
Production Management
Every aspect of production is handled under our supervision for uniform quality.
Strict Quality Management And Testing
We have a well-trained and professional (Quality Control) quality management team. They are trained to manage the processes of material procurement, finished product inspection, etc.
Custom Service
We do not only provide you with a high-quality magsafe rings but also offer you custom packaging and support.
Document Preparation
We will prepare the complete documents, such as bill of material, purchase order, production schedule, etc., according to your market requirements.
Approachable MOQ
We can meet most customers' MOQ requirements, and work with you to make your products unique.
Packaging details
Start Your OEM/ODM Journey
FAQs about U Shaped Neodymium Magnets
U-shaped magnets have flat bottom and parallel sides, ideal for industrial mounting & surface attraction, widely used in jigs and automation. Horseshoe magnets feature a curved bottom for teaching & pickup tools. Both share the same working principle: two poles on one side with concentrated magnetic flux. Fullzen manufactures both, with an independent product line for horseshoe magnets.
With equal volume and grade, U-shaped magnets deliver 2–3 times higher effective pull force than bar magnets. Its design concentrates N & S poles on the same side, while bar magnets have scattered magnetic field. The gain depends on opening width: narrower gap brings stronger pull.
Four key factors:
1) Required pull force — reserve 50–70% safety margin, air gap will reduce actual holding force;
2) Installation space;
3) Operating temperature, pick SH/UH/EH for high heat;
4) Environment: epoxy or Parylene for humid/corrosive conditions. Contact our engineers for selection support.
Our strongest U-shaped magnet is model (200×150×30 mm, N45), with max pull force ~220kg. Custom larger sizes or steel housing magnetic assembly can boost pull force by 30–50%. Contact our engineering team for evaluation.
Yes, select proper high-temp grades.
Standard N grade: max 80°C; SH:150°C; UH:180°C; EH:200°C. Exceeding limit causes irreversible demagnetization. Pull force drops at high temperature, leave extra margin. High-temperature test data available.
Available coatings: Ni-Cu-Ni (popular, moderate corrosion resistance), black epoxy (good for wet/outdoor), zinc plating (cost-effective), Parylene (thin, biocompatible for medical & electronics), gold plating (high conductivity for premium parts. Custom coatings supported.
Low MOQ for standard items: Heavy-duty series ≥100pcs, large series ≥10pcs, small series 100–500pcs, horseshoe ≥200pcs. Custom MOQ:500–5000pcs based on complexity. Small trial orders available for R&D customers.
Yes, samples are strongly recommended before mass production. Free standard samples (customer covers freight). Custom samples with small tooling fee, refundable upon bulk order. Each sample comes with inspection reports. Mass production starts only after sample approval.
Stock standard items ship in 3–5 days. Non-stock standard:15–20 days. Custom:7–10 days for samples, 20–30 days mass production after drawing & deposit. Rush service available, fastest 10 days for bulk goods.
NdFeB U-magnets have strong magnetic force. Notes: Wear gloves for large magnets to avoid pinching risk. Magnets may crack when snapping together. Keep away from pacemakers, magnetic cards, watches & phones. Keep out of children’s reach. Safety instructions included in shipment.
Professional Knowledge & Buying Guide for Industrial Buyers
Why U Shaped Design? Magnetic Field Behavior Explained?
● The U-shaped structure helps to concentrate the magnetic flux, resulting in a stronger, more focused holding field. This design increases the efficiency of the magnet in clamping applications.
● Suitable for bipolar adsorption scenarios (such as fixtures and jigs)
● Better directionality and stability than traditional bar Magnet
How to Choose the Right Coating for U Shaped Magnets?
● Nickel: General choice, rust and wear resistant, bright silver appearance,Corrosion resistant coating
● Epoxy: Black or gray, suitable for wet/chemical environments
● Zinc: low cost, but not as corrosion resistant as nickel
● Gold / Chrome: Can be used for medical devices or high-end decorative parts
Magnetization Direction: What Industrial Buyers Must Know?
● Axial: points from one arm to the other, suitable for clamping applications
● Diametrical: Less commonly used for U-shaped, but customizable
● Multi-pole: for special sensors/motors
If you can provide drawings or explain the purpose, we can help you determine the most suitable magnetization direction and solution.
Pull Force Calculation for U Shaped Magnets – Don’t Be Misled
U-shaped magnets (also called horseshoe magnets) are widely used in clamping, supporting, lifting and sensing applications due to their unique magnetic field concentrating properties. However, there is a common misconception when it comes to understanding and calculating their pull force. Many users believe that pull force ratings for magnets of different shapes and constructions are universal or directly comparable. This is not the case.
What is Pull Force?
Pull force is the maximum force required to separate a magnet from a steel surface, usually measured in kilograms or pounds. This depends on several factors:
● Magnet material and grade (e.g., NdFeB N52 vs. Alnico 5)
● Condition of contacting surfaces (clean, flat, thick, uncoated steel = best)
● Direction of force (straight-line pull is ideal; sideways shear can significantly reduce holding force)
● Air gaps and coatings (even thin coatings or gaps can degrade performance)
What’s special about U-shaped magnets
U-shaped magnets are designed to direct the magnetic field from both poles to the same surface, effectively concentrating the field into a smaller area. This construction creates a strong local magnetic field, especially at the gap between the poles.
However, this construction adds complexity to accurately measuring pull force:
● The working gap between the poles affects the magnetic field concentration.
● The contact of the magnet to the surface is not always uniform.
● Magnetic field leakage and edge effects lead to nonlinear force distribution.
Common mistakes in estimating pull force
● Assuming that pull force scales linearly with size.
● Larger U-shaped magnets may not produce correspondingly higher pull forces if the inter-pole gap or surface contact is not optimized.
How to Accurately Measure U-Magnet Pull Force
● Use a calibrated pull gauge and test on a flat, thick, mild steel plate.
● Make sure the poles are in full flush contact with the magnet surface.
● Pull perpendicular to the surface to avoid shear effects.
● If the magnet will operate on painted, curved, or dirty surfaces, test under specific conditions.
Customization Guide – How to Communicate Efficiently with Suppliers
● Dimensional drawing or specification (with Dimensional unit)
● Material grade requirements (e.g. N42 / N52)
● Magnetization direction description (e.g. Axial)
● Surface treatment preference
● Packaging method (bulk, foam, blister, etc.)
● Application scenario (to help us recommend the best structure)
