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Magnets - Round（Magnet Type (Material)：Ferrite Magnet）
Round magnets are products used to stick items to magnetic objects made of ferrous metals. Besides sticking objects together, they are also used for applications such as magnetism testing and in parts requiring magnetic attraction. Magnets are available in types such as neodymium, ferrite, cobalt and alnico. The magnetic force of neodymium magnets is one of the strongest among the available magnet products. Neodymium magnets are used in a wide range of applications. Ferrite magnets have a weak magnetic force but relatively high retentivity. Cobalt magnets are officially known as samarium-cobalt magnets. They are known for their resistance to rust and high temperatures. Alnico magnets have superior temperature resistance properties and outstanding mechanical strength. The high retentivity of industrial magnets enables even small models to emit powerful magnetic fields. Using a magnet at temperatures above its maximum operating temperature creates the risk of weakening its magnetic force.
Configure
Specification/Dimensions
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Magnet Type (Material)
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Shape
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Round -
Ring -
Arc Type
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-
O.D.(Ø)
- 0.8
- 1
- 1.2
- 1.25
- 1.4
- 1.45
- 1.46
- 1.5
- 1.6
- 1.8
- 1.85
- 1.9
- 2
- 2.2
- 2.3
- 2.4
- 2.5
- 2.52
- 2.55
- 2.6
- 2.8
- 3
- 3.2
- 3.5
- 3.7
- 3.8
- 3.9
- 4
- 4.1
- 4.2
- 4.3
- 4.4
- 4.5
- 4.8
- 5
- 5.2
- 5.3
- 5.4
- 5.5
- 5.6
- 5.7
- 5.8
- 5.9
- 6
- 6.1
- 6.35
- 6.5
- 6.6
- 6.7
- 6.9
- 7
- 7.25
- 7.6
- 7.7
- 7.9
- 8
- 8.1
- 8.2
- 8.5
- 8.6
- 9
- 9.3
- 9.4
- 9.5
- 9.6
- 9.7
- 10
- 10.5
- 10.6
- 10.8
- 11
- 11.7
- 11.8
- 12
- 12.5
- 12.6
- 12.7
- 13
- 13.2
- 13.5
- 13.7
- 13.9
- 14
- 14.2
- 14.5
- 15
- 15.5
- 16
- 16.4
- 16.5
- 17
- 17.2
- 17.5
- 17.9
- 18
- 18.5
- 18.6
- 18.9
- 19
- 19.2
- 19.5
- 20
- 20.5
- 20.9
- 21
- 21.2
- 22
- 22.5
- 23
- 23.3
- 23.5
- 23.7
- 23.9
- 24
- 24.9
- 25
- 25.5
- 26
- 27
- 28
- 29
- 30
- 31
- 31.2
- 32
- 33.2
- 34
- 35
- 35.5
- 35.6
- 36
- 37
- 38
- 38.6
- 39
- 39.2
- 40
- 42
- 43.9
- 44
- 45
- 45.5
- 46
- 48
- 49.5
- 50
- 52
- 55
- 56
- 59
- 60
- 65
- 67
- 70
- 72
- 75
- 76
- 80
- 90
- 100
- 110
- 112
- 115
- 120
- 125
- 127
- 130
- 134
-
Inner Dia.(Ø)
- 0.35
- 0.4
- 0.5
- 0.6
- 1
- 1.2
- 1.25
- 1.3
- 1.5
- 1.67
- 1.8
- 2
- 2.05
- 2.1
- 2.2
- 2.3
- 2.4
- 2.5
- 2.6
- 2.8
- 3
- 3.1
- 3.2
- 3.25
- 3.27
- 3.4
- 3.5
- 3.53
- 3.8
- 4
- 4.1
- 4.4
- 4.5
- 4.6
- 5
- 5.1
- 5.2
- 5.3
- 5.5
- 5.6
- 6
- 6.1
- 6.5
- 6.6
- 7
- 7.1
- 7.4
- 7.5
- 7.6
- 7.8
- 8
- 8.3
- 8.5
- 8.8
- 8.9
- 9
- 9.4
- 9.5
- 9.8
- 10
- 10.2
- 10.5
- 10.8
- 11
- 11.2
- 11.6
- 12
- 12.25
- 12.4
- 12.5
- 12.7
- 12.8
- 13
- 14
- 14.8
- 15
- 15.2
- 15.5
- 16
- 16.5
- 17
- 17.5
- 18
- 18.2
- 18.8
- 19
- 19.1
- 19.3
- 19.7
- 20
- 21
- 22
- 23
- 23.5
- 24
- 25
- 26
- 27
- 28
- 30
- 31
- 32
- 33
- 33.1
- 34
- 35
- 38
- 40
- 42
- 43
- 45
- 47
- 50
- 60
- 62
- 68
- 70
- 75
- 80
- 85
- 90
- 95
- 100
- 115
-
Attraction Force (Range)(N)
- ~10.0
- 10.1~20.0
- 20.1~30.0
- 30.1~40.0
- 40.1~50.0
- 50.1~60.0
- 60.1~70.0
- 70.1~80.0
- 80.1~90.0
- 90.1~100.0
- 100.1~
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Attraction Force (Specific)(N)
Brand |
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|---|---|
Filter By |
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| CAD |
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| Days to Ship |
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- 10 items
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You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Anisotropic Ferrite Magnet Ring Type
MAGNA
High coercivity prevents demagnetization. Being a sintered magnet (ceramic magnet), corrosion resistance is excellent and it lends itself to flat shapes. However, it does crack easily.From: ฿ 46.48 Special Price Days to Ship: 
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Round-Shaped Anisotropic Ferrite Magnet【3 Pieces Per Package】
NIROKU
Rust-resistant magnet with high cost-effectiveness.
[Features]
· Circular type magnet.
· The degree of magnetic force is about 1.5 to 2.5 times stronger than the isotropic ones.
· High corrosion-resistance.
· Has greatly stable magnetic properties because the coercive force is large and demagnetization is difficult.
· Easy to break like ceramic because of low mechanical strength.
· Since the manufacturing requires molds, supporting prototypes is not suitable.
[Applications]
· Used in a broad range of applications such as for motors, removing iron powder, sensors, speakers and health equipment.From: ฿ 71.09 Days to Ship:
8 Day(s)
8 Day(s)
-
You can add up to 6 items per a category to the compare list.
Cylindrical‑Column‑Type Ferrite Magnet【10 Pieces Per Package】
NEMICON
[Features]
· The external appearance is grayish black. Has the same properties as ceramic. Is relatively brittle so should be handled with care.
· The main raw material is iron oxide, making it suitable for applications where keeping costs under control is important.
· While having comparatively stable magnetic properties, the Hcj (coercive force) temperature characteristics are the opposite of that of metal magnets. At low temperatures the Hcj deteriorates, so if using in temperatures below -30°C it is necessary to be careful of low temperature demagnetization.From: ฿ 714.67 Days to Ship:
13 Day(s)
13 Day(s)
-
You can add up to 6 items per a category to the compare list.
Until 31/03/2025
Until 31/03/2025Anisotropic Ferrite Magnet Round Shape
MAGNA
Magnetization is easily retained with no demagnetization. It is a sintered magnet (ceramic magnet), with excellent corrosion resistance and suitable for a flat shape, but it cracks easily.From: ฿ 42.29 Special Price Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
Ring‑Shaped Ferrite Magnet【2-10 Pieces Per Package】
NEMICON
[Features]
· The external appearance is grayish black. Has the same properties as ceramic. Is relatively brittle so should be handled with care.
· The main raw material is iron oxide, making it suitable for applications where keeping costs under control is important.
· While having comparatively stable magnetic properties, the Hcj (coercive force) temperature characteristics are the opposite of that of metal magnets. At low temperatures the Hcj deteriorates, so if using in temperatures below -30°C it is necessary to be careful of low temperature demagnetization.
· There is no attraction force measurement data available for the model numbers listed below. Thank you for your understanding.
[FRR01/FRR02/FRR31/FRR37]From: ฿ 883.05 Days to Ship:
13 Day(s)
13 Day(s)
-
You can add up to 6 items per a category to the compare list.
Ring Type Antisotropic Ferrite Magnet【3 Pieces Per Package】
NIROKU
Rust-resistant magnet with high cost-effectiveness.
[Features]
· Magnetic force is 1.5 to 2.5 times greater than isotropic ones.
· Excellent corrosion-resistance.
· A stable magnet with a high coercivity that does not demagnetize easily.
· Because of low mechanical strength, it breaks easily like ceramic.
[Applications]
· Used for motors, removing iron powder, sensors, speakers, health equipment, etc.From: ฿ 78.40 Days to Ship:
8 Day(s)
8 Day(s)
-
You can add up to 6 items per a category to the compare list.
Yoke (With Cover) Round Anisotropic Ferrite
HIKARI
A round type ferrite magnet with cover.
[Features]
· Sintered stone made by powder metallurgy. (Kind of chinaware)
· The use of a cover (cap) makes the magnetic force about 3 to 11 times stronger.
· Uses anisotropic magnet to obtain large magnetic energy. It is magnetized in a specific direction and the magnetic properties are improved.
[Applications]
· Ideal for machine parts, crafting materials and teaching materials.From: ฿ 124.59 Days to Ship:
12 Day(s)
12 Day(s)
-
You can add up to 6 items per a category to the compare list.
From: ฿ 139.57 Days to Ship:
Same day
Same day
-
You can add up to 6 items per a category to the compare list.
HIKARI
High level of magnetic retention with no demagnetization. Magnet that is magnetized in a specific direction and used most frequently.From: ฿ 114.72 Days to Ship:
Quote
Quote
-
You can add up to 6 items per a category to the compare list.
Isotropic Ferrite Magnet Round【3 Pieces Per Package】
NIROKU
[Features]
· Ferrite magnets are sintered products made from metallurgical powder to form inexpensive magnets, typically used when stable magnetic properties or high magnetic fields are not required.
· This blackish magnet is a familiar sight when used in a wide array of applications.From: ฿ 81.53 Days to Ship:
8 Day(s)
8 Day(s)
| Brand |
|---|
| Product Series |
| CAD |
| From |
| Days to Ship |
| Magnet Type (Material) |
| Shape |
| O.D.(Ø) |
| Inner Dia.(Ø) |
| Attraction Force (Range)(N) |
| Attraction Force (Specific)(N) |
You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  Until 31/03/2025 | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| Brand | MAGNA | NIROKU | NEMICON | MAGNA | NEMICON | NIROKU | HIKARI | HIKARI | HIKARI | NIROKU |
| Product Series | Round-Shaped Anisotropic Ferrite Magnet【3 Pieces Per Package】 | Cylindrical‑Column‑Type Ferrite Magnet【10 Pieces Per Package】 | ||||||||
| CAD |
|
| ||||||||
| From | ฿ 46.48 Special Price On Sale Until 31/03/2025 | ฿ 71.09 | ฿ 714.67 | ฿ 42.29 Special Price On Sale Until 31/03/2025 | ฿ 883.05 | ฿ 78.40 | ฿ 124.59 | ฿ 139.57 | ฿ 114.72 | ฿ 81.53 |
| Days to Ship | Same day | 8 Day(s) | 13 Day(s) | Same day | 13 Day(s) | 8 Day(s) | 12 Day(s) | Same day | Quote | 8 Day(s) |
| Magnet Type (Material) | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet | Ferrite Magnet |
| Shape | Ring | Round | Round | Round | Ring | Ring | Round | Ring | Round | Round |
| O.D.(Ø) | 6 ～ 134 | 1.5 ～ 50 | 3 ～ 50 | 2 ～ 50 | 3 ～ 120 | 6 ～ 100 | 20 ～ 50 | 13.5 ～ 50 | 5 ～ 38 | 10 ～ 20 |
| Inner Dia.(Ø) | 2 ～ 75 | - | - | - | 1 ～ 60 | 2 ～ 60 | 3.5 ～ 5.2 | 5 ～ 22 | - | - |
| Attraction Force (Range)(N) | - | ~10.0 / 10.1~20.0 / 20.1~30.0 / 30.1~40.0 | ~10.0 / 10.1~20.0 / 20.1~30.0 | - | ~10.0 / 10.1~20.0 / 20.1~30.0 / 30.1~40.0 / 40.1~50.0 / 50.1~60.0 / 60.1~70.0 / 70.1~80.0 / 100.1~ | ~10.0 / 10.1~20.0 / 20.1~30.0 / 30.1~40.0 / 40.1~50.0 / 50.1~60.0 / 60.1~70.0 / 80.1~90.0 / 100.1~ | - | - | - | ~10.0 |
| Attraction Force (Specific)(N) | - | 0.098 ～ 33.32 | 0.3 ～ 25.1 | - | 0.1 ～ 170.5 | 1.176 ～ 117.6 | - | - | - | 1.96 ～ 4.9 |
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Related Categories to Magnets - Round
FAQ Magnets - Round
- Question: What is the strongest type of round magnet?
- Answer: The strongest type of round magnet is the neodymium magnet and they are available in a variety of shapes, including rings, cylindrical, rectangle, square and circle with countersunk hole that can be easily mounted onto a surface using a screw. These magnets are known for their extreme strength, compact size, and high coercive force, making them suitable for a wide range of applications especially in factory automation.
- Question: What are cobalt magnets known for?
- Answer: Samarium–cobalt (SmCo) magnets are widely used in various industries, including automotive, medical, industrial manufacturing and semiconductor due to their exceptional magnetic properties:
1. High strength, comparable to neodymium magnets
2. Excellent temperature stability, maintaining their magnetic properties up to about 300°C
3. High resistance to corrosion and oxidation, often not requiring surface treatments.
4. High resistance to demagnetization, making them ideal for applications where magnetic stability is critical. - Question: Can high temperatures affect magnets?
- Answer: High temperatures can significantly affect magnets. When a magnet is exposed to high temperatures the magnetic strength and field weaken. On the other hand, exposing a magnet to colder temperatures increases its magnetism. However, it's important to note that all magnets have a maximum operating temperature, and if this is exceeded, they can experience irreversible losses in performance.
For instance, standard grade neodymium magnets have a maximum operating temperature of 80 °C if you want to use the neodymium magnets over 80 °C we recommend the Heat-resistant grade of Neodymium Magnets, that have a maximum operating temperature150° Therefore, it's essential to consider the temperature effects when using magnets in various applications. - Question: What should be considered when choosing a round magnet?
- Answer: When choosing a round magnet, several factors should be considered Here are the key considerations:
1. Application and Requirements: Understand the purpose and specific needs, for example, the required magnetic strength, size, and shape.
2. Environmental and Temperature Conditions: Consider whether the magnet will be exposed to the temperature range of the application or harsh environmental conditions, for example, standard grade neodymium magnets have a maximum operating temperature of 80 °C
3. Material Type, Size, and Shape: Consider the material type (e.g. Neodymium magnets and Heat-resistant Neodymium Magnets), size, and shape that appropriate to set up in your application
4. Safety Considerations: Consider any safety concerns, especially with strong magnets, to prevent accidents or damage to equipment in the system
By carefully considering these factors, the right round magnet can be selected to meet the project's needs effectively and safely. - Question: Are there special precautions for handling strong magnets?
- Answer: When handling strong magnets, several special precautions should be observed. Here are some of the key precautions include:
1. Keep Distance and Use Caution: Magnets should be kept at a safe distance from metals, steel, and other magnets to avoid immediate impact and prevent magnets from snapping or slamming together, which can cause injuries.
2. Wear Protective Gear: It is recommended to wear eye protection, as magnets, especially neodymium and samarium cobalt, are very hard and brittle and can chip
3. Keep Away from Sensitive Devices: Magnets can affect pacemakers, implanted medical devices, electronic devices. Therefore, they should be kept away from these devices to avoid deactivation or damage
4. Dispose of Carefully: Magnets should be disposed of carefully and in accordance with the relevant guidelines to prevent any potential hazards
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