Pit & Quarry, February 2018
CRUSHING EQUIPPED A Knife River operation in Oregon is poised to pounce on a rebounding market behind its new jaw and cone crushing plants BY GILES LAMBERTSON 16 PIT QUARRY February 2018 pitandquarry com PHOTOS COURTESY OF SANDVIK MINING ROCK TECHNOLOGY he Angell Quarry an aggregate supplier in Portland Oregon should be positioned for additional growth as soon as the local economy shakes off its post recession malaise The quarry which belongs to Knife River Corp invested in an Elrus portable crushing plant to take advantage of an expected surge in aggregate business The plant consists of a Sandvik CJ412 jaw crusher and a Sandvik CH550 high speed cone crusher The company selected this plant in part because of its portability When set up the compact portable units are a good fit for the quarrys relatively limited space to process and stockpile aggregate Also if winter rains influence the quarry like what the site experienced two Decembers ago the compact crushing plant can be relocated to produce aggregate at different sites The Angell Quarry is particularly vulnerable to seasonal storms because the site has high clay content and is situated just south of a major waterway the Multnomah Channel a distributary of the Willamette River Last winter Knife River had to move its plant to the companys Coffee Lake Quarry south of Portland Angell is a very challenging quarry says Lynn Gullickson aggregate operations manager of the metro division at Knife River Winter is especially challenging with flooding all around Sometimes we need to move units quickly THE COMPANY AND MARKET Angell Quarry is just one slice of Knife River Corp which controls an estimated 11 billion tons of aggregate reserves In the Northwest its customer base includes contractors working on highway construction housing developments and government projects Its customer mix varies as the economy moves through different stages Several years ago it was focused on government contracts However this is not the case today With the drop of state and federal funding our customers became mainly privately owned projects Gullickson says Portland is one of the last areas to be rebounding from the recession mainly seen right now in housing startups so these are interesting times But there is predicted growth in the next four to five years We want to be known as providers of T for a SURGE The plant at Knife Rivers Angell Quarry includes a CJ412 jaw crusher and a CH550 high speed cone crusher both from Sandvik
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