Korpak JSC is a company situated in the Belarus capital Minsk, they purchased a second hand ELV plant last year from Scotland. But unfortunately not all of the equipment in the used plant worked. Korpak needed to replace a second hand drum.

Korpak came to Master Magnets with their problem, they explained how they need needed a magnetic drum with a high efficiency, and a heavy duty design to give an increased working life. A fragmentiser electro magnetic drum (‘fraggy’ drum) was recommended for this application, which was dimensionally similar to the previous drum used in the original plant.  ‘Fraggy’ drums are used for the continuous separation of ferrous from non-ferrous material handling mainly fist sized objects. The material is fed onto the ‘Fraggy’ drum at the magnetic section for the separation process to start. There is a 180 degrees stationary electro magnet, within a heavy-duty cover that revolves round it carrying ferrous material around the drum. The stationary electro magnet inside the ‘fraggy’ drum has a powerful magnetic field and alternating magnet poles to gyrate the feed material, allowing non magnetics to free fall, producing a higher volume of valuable ferrous, free of non-ferrous material. The heavy-duty cover that revolves around the electro magnet consists of two armoured 8mm thick manganese covers, with a number throw of bars attached to help carry and discharge the ferrous material. The outside cover has been made easier and quicker to replace to reduce downtime. Electro ‘fraggy’ drums are commonly used in larger applications (i.e ELV plants), which is ideal for Korpak’s needs.
To satisfy the customers needs even further, we were able to provide Korpak with a custom designed drum inclusive of following advantages;

Longer working life than the average drum, due to the heavy-duty structure, with two heavy-duty 8mm thick manganese covers that revolve around it. An advanced air-cooling system was also added to reduce the operating temperature of the magnetic coil giving the magnet an increased working life. Higher magnetic intensity because of an improved cooling system and the specialised internal magnetic arrangements.

Greater separation of Ferrous and Non Ferrous. Due to an alternate pole arrangement whereby it allows only ferrous material to be carried over the drum preventing non-ferrous material from getting trapped.

In addition to supplying the magnetic drum, Master Magnets supplied Korpak with a transformer/rectifier, to transfer the Belarus local electricity supply to direct current to power the electro magnet.

Master Magnets Ltd have supplied ‘fraggy’ drums for over 30 years now, with magnetic drums in full operation at over a hundred sites throughout the world. The company has successfully solved similar applications in China and Australia, giving Master Magnets a worldwide reputation in the design and manufacture of magnetic drums. The customer feedback supports our success and expertise in this area. ‘’We purchased a 60/90 rotary fragmentiser magnet in January 1995. It has performed exceptionally well processing approximately 240,000 tonnes and to date has had no electrical or mechanical defects/ breakdown. We have in the past used Steinert and Eriez fragmentiser magnets on both large and small applications, and although they performed well we have no hesitation in choosing Master Magnets.’’ Operations Manager, Sims Bird Ltd
Master Magnets Ltd can offer a wide product range to deal with many types of magnetic separation applications and recycling needs. For more information on our product and services, or to obtain a brochure on this product, please do not hesitate to contact us.