Magnetic Tube #neodymium #magnet #tube Magnetic Tube
Food and pharmaceutical processing

Magnetic tube, also named a magnetic bar, magnetic rod, magnetic roll separator, is constructed with neodymium permanent magnets which require no extra energy. They can remove iron contaminants to purify the material and protect the equipment. The strong neodymium bar magnets is TIG welded, sealed, and waterproof. After 4 polishing procedures, the surface roughness reaches RA0.6 which fully meets the requirements of food and pharmaceutical production. Unlike a simple magnet, a magnetic tube consists of multiple magnets that form a magnetic circuit, improving the strength of the magnetic field by twice as much as a single magnet, thus meaning that a magnetic tube is better at absorbing fine particles. Leyuan, as one of the magnetic bar manufacturers, offers heavy-duty permanent magnet bars of different shapes, including round bar magnet, a rectangular bar magnet, long rod magnets, and large bar magnets.

As one of the most professional magnetic bar suppliers from China, Leyuan has strong bar magnets for sale. If you want to buy a bar magnet or want to know our other product information such as grid magnet, magnetic grate separators, powerful bar magnet, permanent magnet bar, rare earth rod magnets, liquid line magnetic separator, and heavy-duty bar magnets, please contact Leyuan or leave a message through our website.

Types of Magnetic Tube for Sale
Various endplugs for magnet tube

Square permanent magnet bar

Screw hole in magnetic roll separator

Magnetic round bar with one eye

Rare earth rod magnets with handle

Powerful bar magnet with dam-board

The Specification of Magnetic Tube


1. Housing Material

Type Fields
Stainless steel 304
Stainless steel 304L Widley used in most applications
Stainless steel 316L More corrosion resistance, and are used in food and pharmaceutical industries.

2.Working Temperature
Magnet Type Working Temperature
Neodymium Magnets N Grade ≤80℃
Neodymium magnets M Grade ≤100℃
Neodymium magnets H Grade ≤120℃
Neodymium magnets SH Grade ≤150℃
Neodymium magnets UH Grade ≤180℃
Neodymium magnets EH Grade ≤200℃
Samarium Cobalt Magnets ≤350℃
3. Magnetic tube’s size

The relationship between conventional size, working temperature, and corresponding maximum surface gauss.
Type Diameter 0.25T 0.5T 0.7T 0.9T 1T 1.1T 1.2~1.4T
Round Φ 16 350 100 80 – – – –
Φ 19 350 350 350 120 100 – –
Φ 22 350 350 350 120 100 80 –
Φ 25 350 350 350 150 120 100 80
Φ 28 350 350 350 150 120 100 80
Φ 32 350 350 350 150 120 100 80
Φ 50 350 350 350 180 150 120 100
Φ 102 350 350 350 180 180 150 120
Square 25X25 350 350 350 150 120 100 80
50X50 350 350 350 180 150 120 100
Unit: degrees Celsius; Unit Conversion: 1T=10000Gauss
recommended diameter is Ø25mm
4. Magnetic tube’s Length

Custom and made to any length

5. Surface Gauss value

Finite element models can calculate the strength of a magnetic field. It is quite difficult, but practical we use the value below:

Dry Powder：8000 Gauss

Wet Slurry：10000 Gauss

Nanometer Particles：over 12000 Gauss
6. Endplugs Installation of Magnetic roll separators

Various end plugs based on your requirements, The most common are the following:
Taped Holes
Threaded Studs
Plain Ends
The Advantages of Magnetic Tube
1. Polishing meet food or pharmaceutical processing

After 4 polishing procedures, the surface roughness reaches RA0.6

Polishing meet food or pharmaceutical processing

2. Installation Verticality
When the magnetic bar is fixed vertically to the flat plate, the end face of the magnetic bar must be closely attached to the flat plate. We have one more process than other suppliers, which can eliminate this deviation.
https://www.leyuangroup.com/products/magnetic-tube.html