Description
Product Overview
The Red Cast Alnico 5 Bridge Magnet with Keeper is engineered for demanding industrial and scientific applications where reliable magnetic performance is essential. Crafted from premium Cast Alnico 5, this round magnet measures 1.57 inches in width, 1 inch in height, and 1 inch in thickness, delivering a consistent pull force of 22 pounds. The integrated keeper preserves magnetic flux when the magnet is not in active use, extending the lifespan of the magnetic field and reducing the risk of accidental demagnetization. Its robust construction includes a precisely machined 0.20‑inch diameter hole on the top surface, enabling seamless attachment to shafts, rods, or other mechanical components without compromising magnetic strength. The magnet’s dimensions and weight—approximately 5.44 ounces—make it easy to handle while still providing the power needed for heavy‑duty tasks such as material handling, magnetic separation, and equipment alignment.
Beyond its raw pulling power, the Alnico 5 composition offers superior thermal stability, maintaining magnetic performance even at elevated temperatures that would degrade typical ferrite or neodymium magnets. This heat resistance, combined with high corrosion resistance, ensures the magnet can operate reliably in harsh environments, including outdoor settings, chemical processing areas, and high‑humidity workshops. The product is packaged in a compact box measuring 6.02 x 2.09 x 1.38 inches, weighing just 0.18 kilograms, which simplifies storage and shipping while protecting the magnet from physical damage during transit.
Master Magnetics, the manufacturer, has a long‑standing reputation for producing high‑quality magnetic components, and this bridge magnet is no exception. It carries a UPC of 095421072712 and a Global Trade Identification Number of 00095421072712, confirming its authenticity and traceability within global supply chains. The magnet is listed under the Alnico Magnets category, ranking #21 in its subcategory on major e‑commerce platforms, reflecting strong market acceptance and positive customer feedback, with an average rating of 4.8 out of 5 stars based on eight reviews. This combination of technical specifications, brand credibility, and user satisfaction makes the Red Cast Alnico 5 Bridge Magnet a dependable choice for engineers, technicians, and hobbyists alike.
Designed for versatility, the magnet can be employed in a variety of configurations, from simple magnetic latches to complex magnetic circuits that require precise field control. Its round shape and flat top surface facilitate integration into custom assemblies, while the keeper component helps to mitigate stray magnetic fields that could interfere with nearby electronic equipment. The magnet’s surface finish is smooth and free of coating, allowing for direct contact with ferrous materials and ensuring optimal magnetic coupling without the need for additional adhesives or fasteners.
Overall, this bridge magnet balances size, strength, and durability, offering a practical solution for tasks that demand consistent magnetic force, resistance to environmental stressors, and ease of installation. Whether you are constructing a magnetic conveyor system, building a scientific experiment, or need a reliable holding magnet for workshop tools, the Red Cast Alnico 5 Bridge Magnet delivers performance that meets professional standards while remaining accessible to a broad range of users.
![[Product front view showing all components]](https://www.plazafinds.store/wp-content/uploads/2026/08/6419e37b54454a98a442d085edf51d35.jpg)
Usage
The Red Cast Alnico 5 Bridge Magnet excels in industrial material handling scenarios where secure attachment and reliable pull are critical. It can be mounted on conveyor belts to hold ferrous components in place during processing, ensuring smooth operation and reducing the risk of product slippage. In manufacturing environments, the magnet serves as a quick‑release latch for tool holders, workstations, and safety gates, providing a non‑electrical method of securing equipment that can be engaged or disengaged with minimal effort.
For scientific and laboratory applications, the magnet’s precise pull force and stable magnetic field make it ideal for magnetic separation experiments, such as isolating magnetic particles from fluid samples or positioning magnetic probes within experimental setups. Its high heat tolerance allows it to function within temperature‑controlled chambers without loss of performance, supporting research that involves thermal cycling or exposure to elevated temperatures.
DIY enthusiasts and hobbyists will find the 0.20‑inch top hole particularly useful for creating custom magnetic assemblies. By inserting a metal rod or shaft through the hole, users can construct adjustable magnetic fixtures, rotating magnetic stirrers, or magnetic levitation displays. The keeper component ensures that the magnet retains its strength when not actively engaged, reducing the need for frequent re‑magnetization and extending the lifespan of the device.
In outdoor or field‑service contexts, the magnet’s corrosion resistance protects it from moisture, rain, and exposure to chemicals, making it suitable for use in agricultural equipment, marine applications, and construction sites. Its compact size and lightweight design enable easy transport and deployment by a single operator, while still delivering the 22‑pound pull needed for robust fastening tasks.
Overall, the magnet’s versatility across industrial, scientific, and hobbyist domains underscores its value as a multi‑purpose magnetic component. Users can rely on its consistent performance, straightforward installation, and durability to meet the demands of a wide range of operational environments.
Why Choose Us
Master Magnetics stands out in the magnetic component market due to its commitment to quality, rigorous testing, and customer-focused service. Each Red Cast Alnico 5 Bridge Magnet undergoes comprehensive magnetic performance testing to verify pull force, temperature stability, and corrosion resistance, ensuring that the product meets or exceeds industry specifications before it reaches the customer. This dedication to quality control translates into a reliable product that performs consistently across diverse applications.
Our manufacturing process incorporates precision machining and strict material handling protocols, guaranteeing that the Alnico 5 alloy maintains its magnetic properties throughout production. The inclusion of a keeper in every magnet assembly is a testament to our attention to detail, as it helps preserve magnetic strength during periods of inactivity, reducing the need for re‑magnetization and minimizing downtime for end‑users.
Customer support is a core pillar of our service model. We provide detailed product documentation, technical assistance, and responsive after‑sales support to address any questions or concerns that arise during installation or operation. Our warranty coverage further reinforces confidence in the product’s durability, offering peace of mind for professionals who depend on reliable magnetic solutions.
Key Features
- Provides a strong 22‑lb pull force in a compact 1‑inch thick, 1.57‑inch wide design for space‑constrained applications.
- Features a 0.20‑inch top hole for easy attachment to rods, shafts, or custom assemblies without loss of magnetic strength.
- Constructed from Cast Alnico 5, delivering high heat resistance and stable magnetic performance at elevated temperatures.
- Includes a keeper that retains magnetic flux when the magnet is idle, extending the magnet’s effective lifespan.
- Backed by Master Magnetics’ dedicated customer support and warranty, ensuring reliable after‑sales service.
FAQ
What is the maximum temperature this magnet can withstand?
The Cast Alnico 5 material used in this bridge magnet is designed to retain its magnetic properties up to approximately 500 °F (260 °C), making it suitable for high‑temperature industrial processes.
Can the magnet be used in wet or corrosive environments?
Yes, the magnet’s high corrosion resistance allows it to operate reliably in humid, wet, or mildly corrosive settings without significant degradation of performance.
How does the keeper improve the magnet’s performance?
The keeper provides a low‑reluctance path for magnetic flux when the magnet is not actively engaged, reducing demagnetization risk and preserving pull strength over time.
Is the 0.20‑inch hole compatible with standard hardware?
The 0.20‑inch (approximately 5 mm) diameter hole is compatible with many standard metal rods and shafts, enabling straightforward integration into custom fixtures and assemblies.
What warranty does Master Magnetics offer for this product?
Master Magnetics provides a standard warranty that covers manufacturing defects and ensures the magnet meets advertised specifications, with support available for troubleshooting and replacement if needed.




Reviews
There are no reviews yet.