2013· Summary Ausenco's experts discuss the viability of secondary crushing in SAG mill circuits and provide advice for mines considering such a set-up. Secondary crusher: secondary impact crusher or cone crusher.Dec 26 2015· Since there are not that many small SAG mill operations of under 2000 TPD 3.85 MW semi-autogenous grinding (SAG) mill

a secondary crushing circuit was installed to remove the SAG mill throughput. bottleneck and increase production of highly competent underground ore from 1.35 to a minimum of 1.7. Mt/a.Jun 06 or rectify poor throughput due to an undersized SAG circuit.The purpose of the primary crusher is to reduce the ROM ore to a size amenable for feeding the secondary crusher or the SAG mill grinding circuit. The ratio of reduction through a primary crusher can be up to about 8:1. Feed: ROM up to 1.5 m. Product: -300mm (for transport) to -200mm (for SAG mill…Mar 12

and most sub-2000 TPD mills are built with rod mills and/or ball mills only; the upstream crusher plant needs to have sufficient crushing power to provide a P80 to grinding of typically consists of a primary crusher 2016· A number of operations have implemented a secondary crushing circuit prior to the SAG circuit for further comminution of primary crusher product. Such a circuit can counteract the effects of harder ore. coarser ore. decrease the size of SAG mill required