Pit & Quarry, July 2018
production capacities at lower costs per ton Delivering a speedy return on investment the site has nearly doubled its tons per hour output since the installation of the new crushers MAXIMUM EFFICIENCY Scott Skerston plant superintendent at the Cleveland Quarry calculated the circulating load ratios of the new Patriot cone He reports that at a closed side setting of 1 in the cone processes finished product at a 78 percent throughput and at a 1 2 in closed side setting the throughput percentage reaches a high of 83 percent Were getting maximum efficiency and very little recirculating load while averaging 80 percent of our crushed material going directly out to the finished saleable product stockpile Skerston says He attributes this in part to the cones spiral tooth bevel gearing system which engages more gradually giving an efficient transfer of horsepower to the rock rather than to the structure of the machine As a result the cone performs at higher speeds with less noise and vibration With its uptime and availability at more than 97 percent the Patriot cone maximizes our production of A quality concrete stone and asphalt chips Skerston says Before we added all the new crushers we ran at just over 400 tph Now were running steady at 800 tph due to our crushing advancements NEXT LEVEL TECHNOLOGY According to Skerston the design improvements on the Patriot cone crusher make it more durable reliable and user friendly than older style cones hes experienced Unlike most crusher models he says the Patriot cone crushers countershaft spins in a counterclockwise rotation which causes the crusher to open if clamping pressure is lost reducing the risk of catastrophic failure This feature literally saved us last production season when a simple solenoid RUGGED 4043TR Recirculating Impact Crusher Its one thing to say your equipment is rugged its another to prove it day in and day out year after year Screen Machine products are built with USA made Grade 80 steel That matters when you are running tons of hard rock through the machine More uptime means more productivity Dont settle for anything less than Screen Machine durability so you can CRUSH EVERY JOB GE CRUSH EVERY JOB TM AMERICAN MADE INNOVATION SINCE 1966 740 927 3464 800 837 3344 www screenmachine com 24 PIT QUARRY July 2018 pitandquarry com
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