neodymium magnets

Hard Ferrite Ceramic Block Magnets with Hole

Ferrite magnets are the cheapest in the market. Its visual appearance is of a metallic oxide of dark gray color. They have a great resistance to corrosion and therefore, they are one of the most appropriate products for different outdoor applications thanks to being stainless. They can also be exposed to temperatures of up to 250ºC. They are probably the best alternative to neodymium magnets, as they not only resist humidity and corrosion, but are also resistant to different types of chemicals.
  • Item NO.:

  • Lead Time:

    30-35 days
  • Product Orgin:

  • Shipping Port:

  • min order:

  • Grade:

  • Product Detail

Hard Ferrite Ceramic Block Magnets with Hole

Hard Ferrite ceramic magnets were developed in the 60's and today comprise 75% of world magnetic consumption. Despite their relatively low magnetic values, they are the most popular magnet on the market due to ready availability and relatively low cost.

The raw material from which ferrite magnets are produced is Strontium Ferrite powder (mainly ScO.6Fe203) which is formed in a press while subjected to an electric field. This process allows the direction of the magnetic field to be determined during the production of the magnet.

Block Ferrite Magnet with Hole

Ferrite magnets main features:

1) Low cost, high energy.

2) Good anti-corrosion performance, no surface treatment needed.

3) Excellent temperature stability.

4) provide isotropic and anisotropic.

5) Good electrical insulation, excellent demagnetization resistance

6) High coercivity, high resistance, long-term stability, economic price

7) Best choice for industrial application.

 Grade Residual induction   (Br) Coercive force (HcB) Intrinsic coercive force (HcJ) Energy product (BH)max
mT KGauss KA/m KOe KA/m KOe KJ/m3 MGOe
Y8T 200~235 2.0~2.35 125-160 1.57-2.01 210-280 2.64-3.51 6.5-9.5 0.8-1.2
Y22H 310~360 3.10~3.60 220-250 2.76-3.14 280-320 3.51-4.02 20.0-24.0 2.5-3.0
Y25 3 60~400 3.60~4.00 135-170 1.70-2.14 140-200 1.76-2.51 22.5-28.0 2.8-3.5
Y26H 360~380 3.60~3.80 263-288 3.30-3.62 318-350 3.99-4.40 24.0-28.0 3.0-3.5
Y27H 350~380 3.50~3.80 225-240 2.83-3.01 235-260 2.95-3.27 25.0-29.0 3.1-3.6
Y28 370~400 3.70~4.00 175-210 2.20-3.64 180-220 2.26-2.76 26.0-30.0 3.3-3.8
Y30BH 380~400 3.80~4.00 230-275 2.89-3.46 235-290 2.95-3.64 27.0-32.5 3.4-4.1
Y33 410~430 4.10~4.30 220-250 2.76-3.14 225-255 2.83-3.20 31.5-35.0 3.9-4.4
Y34 420~440 4.20~4.40 200-230 2.51-2.89 205-235 2.57-2.95 32.5-36.0 4.1-4.4
Y35 430~450 4.30~4.50 215-239 2.70-3.00 217-241 2.73-3.03 33.1-38.2 4.1-4.8


1.Isotropic ferrite magnets are not oriented and can be magnetized in any direction;

2.Anisotropic ferrite magnets are different, they are all oriented in the manufacturing direction, and should be magnetized in the direction of orientation.

Ferrite magnets popular uses:

The Ferrite Block Magnet could be used in a widerang of applications because of their high coercively andlow cost.They arewidely used in reed switches,loud speakers,security system audio, motors,magneticcouplings, for sensing, loudspeakers, holding-magnet systems, crafts,magnetic therapy, novelties.

Sintered Ferrite Magnet for Motor Industrial

Request a free quote
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Related products
 Permanent Block Ferrite Magnet

Hard Ferrite Ceramic Block Magnets

Ferrite block magnets are also known as ferrite rectangular magnets or ferrite square magnets, ferrite slab magnets and ferrite cube magnets. Rectangle, square, slab or cube shapes would all exist under the term ferrite block magnets.
Large Ceramic Block Magnets

Ceramic Block Ferrite Magnets 6"X4"X1"

Ceramic magnets, also known as ferrite magnets, is a type of permanent magnets made of iron oxide and strontium carbonate.  we carry the grade C8 ceramic magnets, which is the strongest ceramic magnet. Ceramic magnets are widely used as craft magnets and refrigerator magnets.
Hard Sintered Ferrite Blocks

Customized Ferrite Block Magnets

Ferrite is the cheapest magnetic material and has a high corrosion resistance making coating unnecessary. This magnetic material is hard and fragile and must be processed with diamond, preferably when it is not in a magnetic state. Because it might shrink during the sinter process a tolerance of ± 2 % should be taken into account when determining t1
Sintered Ceramic Ferrite Block Magnets

Permanent Ferrite Block Magnets

A ferrite is a type of ceramic compound composed of iron oxide (Fe2O3) combined chemically with one or more additional metallic elements.They are both electrically nonconductive and ferrimagnetic, meaning they can be magnetized or attracted to a magnet. Ferrites can be divided into two families based on their magnetic coercivity, their resistance t1
Sintered Ferrite Block Magnets

Anisotropic Ferrite Block Magnets

Sintered Ferrite Magnets includes Barium ferrite and Strontium ferrite, the production process is similar with ceramic crafts. Ferrite magnets are brittle and magnetic power is low, but magnetic properties is stable, and featured with high resistivity , Ferrite magnet is not easy to demagnetize and rust, the production process is simple and cost is1
Block Rectangular Ceramic Magnets

Y25 Small Ferrite Block Magnets

Ferrite Magnet---As important parts of magnetic materials, hard ferrite materials play a heavyrole in electronic industry, electronic information industry, car industry, motorcycle industry etc. meanwhile, they are also widely used in medical treatment, mining and metallurgy, industrial automation, oil energy industry and civil industry
Powerful Block Ferrite Magnets

Y30 Strong Block Ferrite Magnets

Ferrite magnets are sintered permanent magnetic materials, composed of barium and strontium ferrite magnets, this in addition to anti demagnetization strong performance, and low cost advantages. Ferrite magnets are hard and brittle and require special machining processes. Because of the anisotropic magnet manufacturing oriented along the direction,1
Ferrite Ceramic Block Magnets

Square Ceramic Ferrite Magnets

Composed of iron oxide & barium or strontium carbonate, ceramic block magnets exhibit relatively good holding strength, making them ideal for many consumer, commercial and technical applications. Commonly used in arts and crafts projects, hobbies, toys, games, science projects, displays, latches and much more.
Big Block Ceramic Magnet for Speaker

Sintered Ceramic Ferrite Block Magnets

Hard Ferrite Magnets (Ceramic Magnets) were developed in the 1960's as a low cost alternative to metallic magnets.Ferrite Magnets have won wide acceptance due to their good resistance to demagnetization, excellent corrosion resistance and low price per pound.They are charcoal gray in color and usually appear in the forms of discs, rings, blocks, cy1
High Quality Ceramic Button Disc Ferrite Magnet

Ceramic Button Disc Ferrite Magnet

Ferrite disc magnets can be manufactured with the direction of magnetization through the thickness or across the diameter. Some ceramic / ferrite magnets are made as isotropic, which means there is no defined magnetic orientation during the manufacturing process.  These isotropic magnets are mainly Ceramic 1 and produce a very weak magnetic fi1
Sintered Ceramic Disc Magnets

Disc Ferrite Magnets Bulk for Crafts

Ceramic magnet material is comprised of iron oxide & barium or strontium carbonate. Ceramic disc magnets exhibit relatively good holding strength, making them the popular choice for many consumer and commercial applications. Ceramic magnets are popular magnets for crafters, used for arts and crafts as well as modeling projects, as refrigerator 1
super strong ferrite magnet with 3M adhesive

Strong Adhesive Disc Ceramic Magnets

These disk magnets have practical dimensions, great quality, competitive price, strong pull force.They are highly stable under environmental conditions with no need to coat or protect the magnet. Perfect for crafts, school, science, refrigerator, kitchen, DIY, hobbies, office, fridge, whiteboard.
Round Disc Magnets for DIY

Ceramic Magnets with Adhesive Backing

Sintered ferrite (ceramic) magnets are also available in forms of isotropic and an-isotropic. The magnetic properties of isotropic ferrite are the same in all directions, therefore they can be magnetized in any pole arrangements. An-isotropic ferrite magnets, on the other hand, can only be magnetized in the direction they are oriented during produc1
Ferrite Flat adhesive Disc Magnets

Adhesive Ceramic Ferrite Permanent Magnets

Great Ceramic/Ferrite Flat Disc Magnets with Beveled Edges. Economical. Compared to expensive rare earth or neodymium magnets, these ferrite magnets offer much better value for all your magnetic project needs. People widely use Our Adhesive Ceramic Magnet as Kitchen magnets, Office magnets, Science magnets, Classroom magnets, Fridge magnets, DIY ma1
Speaker ferrite ring magnets

Ferrite ring magnets for Speakers

Ferrite Ring magnets are made specifically for loudspeaker systems to crafts and toys and their sizes have evolved with demand from this market.
Durable Speaker Ring Magnet Y30

Customized Ferrite Ring Speaker Magnets

Ferrite Ring Magnets are the best value permanent magnet available due to an abundance of raw materials and economical cost to manufacture. They are ideal for creating a deep magnetic field inexpensively. Magnosphere stock’s a wide range of ferrite magnets for almost any application.
Custom Ring Ceramic Magnets

Permanent Ferrite Round Ring Magnets

Ferrite, also known as Ceramic Magnets, is made of a composite of Iron oxide and barium carbonate (BaCO3) or strontium carbonate (SrCO3). Since the 1950’s, this material is commonly available and at a lower cost than other types of materials used in permanent magnets. Ceramic magnets are made by pressing and sintering. Sintered magnets are a type o1
Ring Ferrite Isotropic Magnets

Powerful Isotropic Ferrite Ring Magnets

Also known as ceramic magnets, ferrite magnets offer excellent value for money when pull strength is not the most important factor. According to the different orientation of the crystal , it can be divided into isotropic magnets and anisotropic magnets. Due to the ferrite has good temperature resistance with low cost, which has become one of the mo1
Arc Ferrite magnet for Motor

Arc Segment Ferrite Magnets For Motors

Ferrite permanent magnets are mainly made of SrO or Fe2O3 materials. Comparing with neodymium magnet , ferrite magnet is harder and brittle, with lower magnetic performance. But it has excellent resistance to demagnetization and corrosion. Due to simple production techniques and more favorable price, ferrite magnets have the highest yield in magnet1
Arc Ferrite Ceramic Magnet for Motor

Permanent Arc Ferrite Motor Magnets

Ferrite magnet or ceramic magnet is the cheapest magnetic material available with the lowest cost/energy ratio, also known as Ceramic Magnets, they are mainly Strontium based (SrFe2O3), manufactured with Strontium Carbonate additive to increase performances from the obsolete Barium based (BaFe2O3).
Ferrite Arc Starter Motor Magnets

Ceramic Arc Segment Ferrite Magnets

Motor arc magnets for automobile industry is our important product, according to the automobile features, we research and design a series magnet to meet the demand, among the magnet for starter motor and window-rolling motors are the leading magnet in China. In addition, you also could choose other excellent magnet for your industry, including magn1
Leave a message
welcome to BearHeart
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.