Jul 07, 2021 The TAKRAF apron feeders, which are being installed in two new crushing stations at the mine, are 1,830 mm wide by 11.2 m long (18 incline) and feed copper/cobalt ore at 1,200 t/h from a truck tipping point to grizzly feeders,which in turn feed jaw crushers. They are designed to handle up to 950 mm diameter lumps. GRIZZLY FEEDER. The Propel Grizzly Feeder can handle large feed rates with coarse blasted rock and also the material impact from dump trucks or wheel loaders. Its step height and tapered grizzly bars eliminate pegging and enhances the efficiency of separation.