Pit & Quarry, July 2015
EQUIPMENT FOCUS SCREENING ters at pit bases When you put clay through that plant it plugs up the jaw Keith says When you slow down the jaw it basically gives the clay a chance to fall through A water spray system helps clay fall through as well In addition to the jaw crusher on the new plant Hagedorn Construction has Keith Hagedorn Construction has fed its plant at a rate as high as 1000 tph says MAB Equipments Mark Blanchflower a second jaw crusher a 3240 jaw from Eagle Crusher thats used in certain pits that contain larger rocks I dont usually use that because its a 32 in x 40 in jaw and most of my pits dont have rocks that are bigger than 10 in Brandon says The 3240 jaw crusher doesnt see action on every site but other machines A 3 degree slope on the TFM3P 3820 triple deck screen is useful in combatting sticky material that would otherwise slow material flow rate are job fixtures Hagedorn Construction operates Caterpillar loaders and a Volvo Construction Equipment excavator It also uses articulated dump trucks ADTs to stockpile material Some of our pits are in the middle of cornfields Brandon says ADTs typically work in tandem Keith adds A 50 ton surge bin buys truck drivers time to dump one load and return for the next As of late 2014 Hagedorn Construction had only set up its plant on a new site once But given that experience and everything the Hagedorns know about the plant they expect each setup to take about three hours Going around corners can be difficult Brandon says but weve got that figured out too because we can raise up the two rear axles and shorten our turning radius P Q 18 PIT QUARRY July 2015 www pitandquarry com
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