SOLLAU s.r.o.

The automatic above-the-flow chute plate magnetic separator is a unique solution for the separation of ferrous particles from dry or semi-liquid materials.

This automatic separator is used in above-the-flow chute or belt applications where the ferrous contaminants are captured by powerful permanent magnets and automatically carried away by a stripper plate into the side waste hoppers. The cleaning intervals of the magnetic plate can be individually preset according to the type of product being cleaned and the contamination degree. The flush face plate magnet with automatic cleaning is equipped with very strong neodymium magnets (NdFeB) allowing for the most efficient separation of magnetic particles.

The basic elements of the automatic above-the-flow chute plate magnetic separator consist of a self-supporting structure with a stripper plate, strong permanent magnets, a stainless steel chute and waste hoppers (for the removed ferromagnetic impurities). The magnetic plate is suspended above the stainless steel chute (or above a conveyor belt where applicable) and magnetic particles contained in the streaming material are continuously attracted to the stripper plate (equipped on the upper side with powerful permanent magnets). The caught magnetic impurities are then - at preset intervals -transported by the stripper plate into the waste hoppers, and the clean material moves on the chute (or on the conveyor) for further processing. The automatic cleaning is carried out by pneumatic cylinders (moving the stripper pan) and managed by a pre-programmed control unit. The compact DIN 1.4301 stainless steel structure provides for a simple and easy installation into the already existing production lines and at the same time guarantees high resistance and a long working life of the whole system.

Thanks to the entirely unique design, the self-cleaning above-the-flow chute magnetic separator allows for automatic recovery without production stoppage, i. e., no undesirable shutdowns occur. Another indisputable advantage is the fact that the material being cleaned is in direct contact with neither the magnetic cores nor the stripper plate. Therefore, not even high abrasiveness of the processed material can result into the damage of the magnetic separator or into the threat to operational continuity. That is why the automatic above-the-flow chute plate magnetic separator represents a well-balanced alternative to expensive trunnion magnet separators and rotary trommel screens which are used in particular to clean materials coming out of ball mills (in the course of cement production, ore processing,  coal crushing in thermal electric stations, foam glass manufacturing etc.).

Extra value added

Our company goal is not only to manufacture and deliver a product, but above all to find and offer an exact solution satisfying the requirements and needs of just YOUR company. In these days of rapid changes in technology it is very difficult to keep up with the latest trends even in the field of your own activity, not to mention other industrial or foreign branches. And that is why we offer you our technical support based on our know-how and our experience. We hope that you - as well as our present clients - will also appreciate our assistance with solving problems regarding the separation of magnetic particles from your products, that we will help to protect your expensive machinery and that our solutions will make your production process even more fluent. If you are looking for a solution of a problem with separation or detection of ferromagnetic impurities in your goods, do not hesitate to contact us. We can help you.

Cost-effective free-fall metal detector PDK is used for the detection and separation of undesirable magnetic and non-magnetic metal particles in free falling bulk materials without the need to interrupt the operation or material flow.

The material falls through a detection head with highly sensitive electromagnetic coils, whose signals are transmitted to the microprocessor control unit. If a metal object exceeding the pre-set sensitivity values is detected, the control unit activates a pneumatic ejector flap. The flap redirects a small quantity of the material containing the detected contaminant into a waste outlet (and then the flap returns to its original position). The period, for which the separation flap is diverting the flow of material into the waste outlet, can be pre-set by the user

Features include:
•Robust design
•Various connecting dimensions (from 60 to 200 mm)
•Low installation height
•Easy operating
•Detection sensitivity adjustable according to individual requirements
•Effortless installation (thanks to universal flanges)
•Protection against electrosmog
•Attractive unique design
•Considerable resistance to wear and tear

The gravity fed metal detector PDK offers a modular and very broad application spectrum, guarantees long, failure-free and almost maintenance-free operation, protects the user against warranty claims and prevents production stoppages.

The free-fall metal detector PDK is used mainly in the area of the plastic and recycling industries.

Overband magnetic separator / Conveyor magnetic separator with automatic cleaning

Overband magnetic separator DND-AC is designed to handle product stream with a high content of ferromagnetic particles (exceeding the limitation of standard suspended plate magnets). It is designed to capture in a quick and easy way valuable ferromagnetic particles from a product stream and at the same time the overband magnetic plate with automatic cleaning protects your machinery (shredders, mills, grinders, screw conveyors etc.) that subsequently treat the material. The tramp ferrous metal extracted from the conveyor is removed by a heavy duty rubber belt into a skip or a collection bin at the side of the conveyor. Most commonly the overband magnetic separator DND-AC is suspended above and across the belt, however it is also possible to place it at the head of the conveyor (parallel to the belt). The kind of applied magnets depends on the position of the separator: if the magnetic separator is parallel to the conveyor belt, it is possible to use weaker magnets (as at the end of the conveyor belt the material is quite loose). On the contrary, if the magnetic separator is suspended across the belt, we recommend that stronger magnets are applied (as the material layer on the belt might be higher and compacter).
 
The standard version of the overband magnetic separator DND-AC M is fitted with strong permanent ferrite magnets. However, if you need stronger magnetic force (e. g. for mobile lines, grinders, mills), we recommend that the overband magnetic separator is equipped with extremely powerful neodymium NdFeB magnets from rare earth ores. A careful interference shielding ensures that the magnetic field is concentrated only on the material on the conveyor belt.

The dimensions of the overband magnetic separator can be adjusted to client's needs. Conveyor magnetic separator with automatic cleaning is very effective, maintenance-free, inexpensive to operate and easy to install.

The overband magnetic plate separator finds use in recycling, mining, plastic, glass and wood industries.

Extra value added

Magnetic force (induction) generated by the extremely strong permanent magnets from rare earth ores does not let through any unwanted ferromagnetic impurities – and that is why the application options of our products are nearly unlimited (they find their use in chemical, plastic, automotive, building and pharmaceutical industries, food processing, mining etc.).

Our company goal is not only to manufacture and deliver a product, but above all to find and offer an exact solution satisfying the requirements and needs of just YOUR company. In these days of rapid changes in technology it is very difficult to keep up with the latest trends even in the field of your own activity, not to mention other industrial or foreign branches. And that is why we offer you our technical support based on our know-how and our experience. We hope that you - as well as our present clients - will also appreciate our assistance with solving problems regarding the separation of magnetic particles from your products, that we will help to protect your expensive machinery and that our solutions will make your production process even more fluent. If you are looking for a solution of a problem with separation or detection of ferromagnetic impurities in your goods, do not hesitate to contact us. We can help you.

Permanent multi roll magnetic separator fitted with extra strong magnetic cylinders is used for a continuous and automatic separation of even very small and only weakly magnetic particles (for example magnetic stainless steel or some kinds of paramagnetic minerals).

This exceptionally powerful magnetic multi stage separator consists of a vibrating feeder and up to five pairs of conveyor rollers cylinders placed vertically. One of the two head pulleys is a drive roller (we also offer a version with the rotation speed regulation according to the purified material character and processing needs) and the second one is driven. It also means that one cylinder is magnetic and the other one is non-magnetic. The cylinder pairs are interconnected by very thin, but extremely durable conveyor belt made from bullet proof Kevlar or glass teflon (it is available also with non sticking nylon finishing). The ferrous particles transported on the vibrating feeder together with the material to be purified are captured by the strong permanent magnets and dragged on the surface of the pulley beyond its magnetic axis where they fall off. The purified material (it means the non-magnetic particles) falls down by the effect of gravity on the next conveyor belt (placed under the first one), where the separation process is repeated in the same way (the splitter position of the magnetic and non-magnetic material output is adjustable). The magnetic field (pole gap) reaches the height up to 10 mm (depending on the separator model) and it is therefore recommended that the layer of the material transported on the belt shall not exceed 5 mm (the best results are achieved if the height between 2 mm is not exceeded).

The high gradient magnetic roll separator is equipped with a device for a simple adjustment of the optimal tension of the conveyor belt. An integrated hopper with a vibration feeder, whose dimensions correspond exactly with the conveyor belt width, is an integral part of this special magnetic separator. The optimum material batching on the conveyor belt (up to approx. 2.5 tonnes per hour) can be pre-adjusted by means of a vibration regulator.

This rare earth roll separator is very powerful, reliable, maintenance-free, undemanding from the installation and operation point of view. We supply it in a laboratory version as well (i. e., with a reduced dimensions and replaceable rolls of 100 mm length).

Thanks to the quality of the materials used for the production of the high intensity magnetic roller (set of extra strong NdFeB magnets in combination with special steel washers and the very thin and extremely durable Kevlar conveyor belt), this top quality separator is capable to reach the value of the magnetic induction up to 21000 gauss (depending on the separator type). Such a high magnetic induction used to be achieved by only electromagnetic separators until recently.

The permanent multi-stage magnetic separator fitted with the extra strong magnetic cylinders is intended for the most demanding industrial applications requiring a separation of the finest ferromagnetic impurities. It is used particularly in the food and pharmaceutical industry, in sand, feldspar and kaolin mining, in the e-waste recycling (for the removal of undesirable weakly magnetic stainless admixtures), in glass and ceramic industry, during mineral processing (iron ore, quartz) etc.

Magnetic grate separator with automatic cleaning is designed to separate in a quick and easy way even the finest magnetic iron contamination from free-flowing substances of good bulk properties and to protect the machinery that subsequently treats these materials.

Magnetic grate separators MSS-AC with automatic cleaning are manufactured in two versions: one-sided MSSJ-AC (for the production processes that can be interrupted during the cleaning procedure) and double-sided MSSO-AC (for continuous material flow).

The one-sided separator (MSSJ-AC) is intended for the application, where the material flow and the production process can be interrupted in the course of the cleaning. The small dimensions of our one-sided magnetic separator MSSJ-AC make its application possible even in the production lines with very limited space for the execution of necessary cleaning (where e. g. the manual magnetic separator MSS-MC or the two-sided automatic separator MSSO-AC could not be - for this reason - applied).

The two-sided separator (MSSO-AC) is intended for such applications, where the material flow and the production process cannot be interrupted during the cleaning. The bulk material falls down through the inlet for the contaminated material via demountable damping grate (it reduces the impact power of the falling material) on the grate sieve consisting of magnetic tubes. Ferromagnetic particles are caught on the stainless steel surface of the protective tubes thanks to the strong neodymium magnets. The grates occupy two thirds of the separator width, while the magnetic cores are permanently placed under the inlet for the contaminated material, in the middle of the magnetic separator. Owing to the two-third length of the cover tubes the magnetic cores (situated in the separator centre) are always protected by the stainless steel tubes and a half of the cover tube length is continuously cleaned from the magnetic impurities at the same time. This way the continuousness of both cleaning and separation processes is guaranteed (and without the necessity to interrupt the production cycle during the magnetic separation and cleaning). The entire lower grid (= the set of lower protective tubes) moves to the right by means of the pneumatic drive and guiding rollers in preset time intervals and the upper grid follows it to the same position. Discharge of the collected impurities into the waste funnel at the right side takes place during the cleaning interval set by the customer. Afterwards the bottom protective tubes are moved to the left and followed by the upper grid. The ferromagnetic impurities caught up on the protective tubes fall down into the left waste funnel. The tubes protecting the magnetic cores are moved to the right as soon as the cleaning process is finished (and the whole procedure keeps being is repeated all the time).

The separation process of both types of the separators can be monitored thanks to the transparent checking window in the upper part of the separator. In order to observe the strict rules and demands of food processing and pharmaceutical industries, the parts of the separator supposed to be in direct contact with the cleaned material are supplied with a polished surface and removed welds.

In order to ensure a quick and easy connection, the separator housing is ended by flanges (standard type, Jacob quick-connect fasteners or flanges according to client's needs) of 250 x 250 mm, 400 x 400 mm or 500 x 500 mm (but we can adjust the connection to client's requirements).