Steel screw conveyors can damage products. Moreover, they wear out over time. We can offer you the solution install IQ Compositeâ??s Tekrone screw conveyors. Calculate the priceon our website: http://screw.iqcomposite.com/en/ The main benefits of our screw conveyors are: increasing service life 4-5 times improving energy efficiency gentle product transportation low friction factor; durability; corrosion resistance; easy installation. diameter up to 500 mm