Aggregates Manager Digital Magazine
Issue link: http://read.dmtmag.com/i/248272
36 When oversized rock is fed into the jaw, but is too large for the chamber, it interrupts crushing and stalls production. On Our Cover: CalPortland tackles underwater mining. Cover photo by Kerry Clines. 12 Powerscreen's new Premiertrak 300 jaw crusher can produce up to 308 tons per hour. CONTENTS FEBRUARY 2014 FEATURE ARTICLES 17 Speaking with One Voice NSSGA's new CEO, Mike Johnson, focuses advocacy efforts by putting aggregates first. 28 CalPortland's Santosh Aggregates Plant continues to scoop up profits in Oregon, one dragline bucket at a time. 36 VOLUME 19, NUMBER 2 COLUMNS & DEPARTMENTS 3 5 9 11 EDITORIAL A taxing situation. STATE AND PROVINCE NEWS A roundup of the latest news in North America. DATA MINING The latest financial analysis of Proper care — and application — will keep your primary jaw crusher properly feeding the production cycle. WEB EXCLUSIVES Visit www.aggman.com for expanded editorial coverage. Get ready for the big show with our expansive coverage of equipment on display, listings of aggregates-specific educational seminars, and news from the show floor. 42 issues impacting in the industry. ROLLOUTS Rice Lake Weighing System's newest digital weight indicator, and other new equipment for the aggregate market. ROCK LAW MSHA expands its use of Section 103(k) orders as the Federal Mine Safety and Health Review Commission broadens the definition of 'accident.' OPERATIONS ILLUSTRATED 23 Mobile Equipment Matchups Matching the size of the loading machine to the truck is critical to hitting your plant's production target. 44 47 48 CLASSIFIED ADS Aggregate industry classifieds. ADVERTISER INDEX See who's who and where to find their products. CARVED IN STONE From the land of Lincoln to the Gateway Arch, Route 66 highlights interesting insights into history.