Stainless steel separators MV-R
The extremely powerful magnetic separator MV-R s used for the continuous and automatic separation of weakly magnetic pieces of stainless steel, including very small particles.
Design of the stainless steel magnetic separator
This extraordinarily strong as well as compact and modular magnetic separator MV-R consists of a pair of pulleys. The drive pulley is a high intensity rare earth roll (with a rotational speed control according to the character of cleaned material and working needs) and the driven one is non-magnetic. Both pulleys are mutually connected to each other with a very thin, but extremely sturdy polyurethane belt (which is also suitable for food applications, it is antistatic and has increased temperature and mineral oil resistance).
The magnetic field of the magnetic roll reaches a maximum height of about 10 mm. It is therefore advisable for the material transported on the belt not to exceed a height of 10 mm. At the same time, the material should be poured on the conveyor belt as an evenly thick layer and distributed properly (e.g. by a vibrating hopper).
How does stainless steel separator work?
Ferromagnetic particles are trapped by the magnetic field of the roller and brought behind its axis, whereas the cleaned (i.e. non-magnetic) material falls off at the separator outlet (due to gravity). Thanks to a special flow divider of the magnetic and non-magnetic material (angularly and axially adjustable) it is also possible to separate even the third fraction from the pure material. The third kind of the material can be found between the pure material and the ferromagnetic contaminants (thus it involves the lightly magnetic material, i. e., partly contaminated with iron particles).
Please bear in mind that primary stainless steel is mostly non-magnetic. However, industrial usage and processing (machining, pressing, crushing, repeated impacts, heating, etc.) disrupt the non-magnetic crystalline lattice of stainless steel, making it weakly magnetic (compared to conventional iron or steel, machined stainless steel is only magnetisable within a few percentages, and can therefore only be captured by an extremely strong magnetic field).
The dry high intensity magnetic separator is therefore designed for the most demanding industrial clients requiring the separation of even very weakly magnetic stainless-steel particles. The operating capacity of the separator also depends on the maximum size of the stainless steel particles (the separation capacity of the magnetic separator is proportional to the size of the stainless steel particles, i. e., the smaller the particle, the more difficult for the separator to capture it). MV-R reliably separates weakly magnetic particles of as small as 0.1 mm, but it can randomly capture stainless steel particles as small as 30 microns. The separator is available in widths of working space from 500 to 1 500 mm.
Customer care
Your project will be taken care of by us from beginning up to the very end. It does not end with the order placed at us. We will provide the full support for all the time of the use of the separator.
1. We will come
2. We will align and design
3. We will make a made-to-measure product
4. We will install
5. We will put into operation and school in
6. We will provide authorized service
We guarantee tests withing three days!
Make sure that our device perfectly meets your expectations!
We will provide tests of your material on our magnetic separators for FREE!
Advantages of the stainless steel separator
Thanks to the material quality used, when producing the DHIMS (combination of extra strong NdFeB magnets with special steel washers and the very thin but highly sturdy conveyor belt) this high intensity separator is able to achieve a surface magnetic induction up to 21,000 gauss. This is a value, which has been reached so far only by electromagnetic separators. On the other hand, let us bear in mind that the reached value of the magnetic induction of the magnetic roller is not so important as the density of the magnetic poles, because the MV-R is often used for catching small ferromagnetic particles. Should the distances between the magnetic poles be too large (in order to achieve the maximum magnetic induction), the very strong magnetic field generated in this way will not be exploitable for catching tiny impurities – because these would slip through due to big distances between the magnetic poles. Therefore, in combination with the very dense poling the optimum value of the magnetic induction on the roller surface ranges about 11,000 gauss (to achieve the maximum capture also of very small ferromagnetic particles).
Besides the high efficiency of the magnetic separation, the other advantages of this top-ranking separator are the low power consumption, low operating costs, a wide range of applications (including food processing), high durability and modularity (it can be easily integrated into existing processing lines or equipped with additional accessories like e. g. a vibration feeder).
SOLLAU – our products are welded by real professionals!
SOLLAU certifications:
Authorization to perform welding on pressure equipment according to PED 2014 / 68 / EU
Pressure welder certificate according to EN-ISO 3834 - 2, EN 1090 - 2, EN 13480 - 1 to 5, EN 13445 - 1 to 5
MV-R
- Height adjustable design
- Conveyor belts are anti-static, tear resistant, meet FDA and flame resistance requirements
- Diameter of the rare earth roll: 300 mm
The extremely powerful magnetic separator MV-R s used for the continuous and automatic separation of weakly magnetic pieces of stainless steel, including very small particles.
| Product | Working width (mm) | Datasheet |
|---|---|---|
| MV-R 500 N | 500 | display PDF |
| MV-R 1000 N | 1000 | display PDF |
| MV-R 1500 N | 1500 | display PDF |
Standard magnetic separators are designed to capture ferromagnetic metals with high magnetisability. Stainless steel processed by industrial operations (milling, crushing, pressing or thermal stress) is, on the contrary, weakly magnetic — its magnetisability is only a few percent of that of ordinary steel. The MV-R separator therefore uses an extremely powerful magnetic roller with dense radial NdFeB pole configuration, which reliably captures these weakly magnetic particles without requiring an external power supply.
The MV-R reliably captures weakly magnetic stainless steel particles from 0.1 mm in size; incidental capture is possible from as small as 30 microns. For maximum efficiency, we recommend keeping the material layer height on the belt below 10 mm — the magnetic field of the drive roller reaches approximately this depth, and with a thicker layer some contaminants would pass through uncaptured.
The surface magnetic flux density of the MV-R reaches up to 21,000 gauss — a figure previously claimed only by electromagnetic separators. However, for the reliable capture of small weakly magnetic particles, we work with an optimal setting of around 11,000 gauss with dense pole configuration. An excessively large gap between magnetic poles — required to achieve maximum flux density — would cause small contaminants to slip through without being captured.
Magnetic contaminants are captured by the magnetic field of the drive roller and carried past its axis, while clean (non-magnetic) material falls away by gravity at the belt exit. The separator operates continuously and automatically — it requires no manual intervention or production stoppage. The polyurethane conveyor belt is antistatic, resistant to heat and mineral oils, and meets FDA standards for the food industry.
Yes. An adjustable flow splitter — adjustable both angularly and axially — allows three fractions to be separated: clean non-magnetic material, weakly magnetic material partially contaminated with Fe particles, and ferromagnetic contaminants. The roller rotation speed is also adjustable according to the nature of the material being cleaned and the required operating capacity.
We offer three standard working widths: 500, 1,000 and 1,500 mm. All versions are height-adjustable and easily integrated into existing processing lines. If required, the equipment can be supplemented with a vibrating feeder to ensure uniform loosening of material on the belt and improve separation efficiency.
We provide full project support with every MV-R separator — from application survey and custom manufacturing through to installation, commissioning and operator training. Authorised service throughout the entire service life of the equipment is part of our offering. Before placing an order, we additionally guarantee free testing of your material on the separator within three working days.
The MV-R is primarily designed for processing e-scrap, incinerator slag, heavy fractions from crushing lines and metal recycling in general. Thanks to its FDA-certified belt, it also finds application in the food industry. It is further used by customers in engineering, foundries, the automotive industry and wherever industrial processing of stainless materials produces weakly magnetic contaminants.
Which industrial branches can the high intensity magnetic separator be used in?
The high gradient magnetic separator MV-R is used for cleaning and recycling of e-waste, incinerator bottom ash, heavy fractions from crushing lines and is applied for recycling of metals in general.
Thermal power plants
Plastics and rubber industries
Wood industry
Food processing industry
Automotive industry
Chemical industry, paints and lacquers
Cement and lime industry
Mining and quarrying industry
Ceramic and glass industry
Textile industry
Tobacco industry
Paper industry
Machining and foundry industry
Recycling and waste processing