Although the conditions of use may seem similar, the sand and gravel industries and C&D recycling have some special requirements. These often include difficult terrain and soft ground that demand very high stability from mobile drum screens.
And the screens have to be mobile, since users need flexible handling and the ability to work at different sites. The input materials can vary widely as well, from cable sand to fill material to topsoil to recycling granulate. This demands a sturdy frame, robust discharge conveyors, and a drum that is not bothered by falling stones. Naturally, the screen output has to be of the right quality. This is especially critical with sticky or clayey feedstocks. These can clog the screen drum or cake between the drum and the side walls.
All drum screens are not created equal
Komptech has a very wide range of drum screens. The Nemus 2700 is an advanced mobile machine that can handle the mineral screening very well.
It has a tough chassis with non-warping frame, and massive hydraulic support feet that keep it steady on uneven ground. The folding hopper grate keeps massive contraries out. The hopper belt control prevents belt tilting, and screen drums with up to 10 mm thick walls give long service. Screw-in studs in the oversize conveyor and controllable belt speed keep stones from rolling back.
Drums designed specifically for sometimes very heavy feedstocks, special cleaning brushes, simplified radiator cleaning and easier belt replacement make the very robust Komptech drum screens highly practical machines that have proven their ability to handle mineral screening tasks at difficult sites.