Through hole pot magnet is a type of shallow pot magnet assembly that features a centrally located straight hole or bore along its axis. It is also commonly known as a pot magnet with a counterbore hole. The through hole allows for convenient mounting and fastening of the cup magnet to various surfaces or objects using screws or bolts.
Strong pull force
Round base with a bore hole
Hold tightly with a flat head screw
Used in workshop, garage and kitchen
Horizon Magnetics is focusing on the Neodymium magnet material, so it is also called Neodymium cup magnet with borehole, Neodymium round base magnet with mounting hole, Neodymium pot magnet with through hole. For the through hole pot magnet assembly, the NdFeB magnet is glued into the flat round steel pot, and the hole diameter of steel cup is usually smaller than magnet hole so that the cup and then whole pot magnet is easy to be fixed onto other objects through screw or bolt. The steel cup protects the encased Neodymium magnet ring from damage coming outside. Moreover, with the steel covered, the magnetic force of the Neodymium ring magnets inside is more powerful. After covered by steel cup, only one magnetic surface of the magnet can be used to hold objects.
Reason for Higher Magnetic Force of Through Hole Pot Magnet:
Under normal conditions, the magnetic line of force of the magnet is freely distributed in the air, while the pot magnet adds a steel cup outside the magnet, which makes the magnetic line of force focus on the working surface under the guidance of the magnetic circuit. When the magnetic field of the pot with borehole is absorbed on the iron plate and contacts with the working face, the magnetic line of force is more concentrated than usual, so the pulling force is much higher than that of the single magnet.
Typical Applications of Through Hole Pot Magnet:
Through hole pot magnets are friendly in mounting, because they can be easily mounted with other accessories for various applications through using a flat head screw. Only a bolt needs placing through the straight hole until the screw head touches the inside top of the steel cup and then the magnetic face attracts the ferromagnetic surface. The bolt is then attached to the various materials with a nut to hold it securely in position. Typical use includes fastening the through hole cup magnet in the workshop or garage to organize different tools, in the kitchen to hang different cooking tools, attaching the tow light to a car to warn other road users, etc.
Advantages of Horizon Magnetics Through Hole Pot Magnet over Competitors:
1. Quality First: Horizon Magnetics focus on quality for overseas markets and use standard Neodymium magnet quality in each pot magnet to reach excellent quality and ensure our pot magnet to have higher holding force than competitors.
2. Pot magnets with more options of sizes and machining technology to meet diverse quality or price requirement
3. Standard sizes in stock and available for immediately delivery
4. Many inventory and in-house machining capability to meet one-stop shopping requirement for magnetic assemblies
Technical Data for Through Hole Pot Magnet:
| Part Number | D | d1 | d2 | H | Force | Net Weight | Maximum Operating Temperature | ||
| mm | mm | mm | mm | kg | lbs | g | °C | °F | |
| HM-B16 | 16 | 3.5 | 6.5 | 5.0 | 4 | 9 | 5.5 | 80 | 176 |
| HM-B20 | 20 | 4.5 | 8.0 | 7.0 | 6 | 13 | 12 | 80 | 176 |
| HM-B25 | 25 | 5.5 | 9.0 | 8.0 | 14 | 30 | 21 | 80 | 176 |
| HM-B32 | 32 | 5.5 | 9.0 | 8.0 | 23 | 50 | 36 | 80 | 176 |
| HM-B36 | 36 | 6.5 | 11.0 | 8.0 | 29 | 63 | 45 | 80 | 176 |
| HM-B42 | 42 | 6.5 | 11.0 | 9.0 | 32 | 70 | 72 | 80 | 176 |
| HM-B48 | 48 | 8.5 | 15.0 | 11.5 | 63 | 138 | 114 | 80 | 176 |
| HM-B60 | 60 | 8.5 | 15.0 | 15.0 | 95 | 209 | 240 | 80 | 176 |
| HM-B75 | 75 | 10.5 | 18.0 | 18.0 | 155 | 341 | 465 | 80 | 176 |
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