More from Therese Dunphy

Therese Dunphy has been covering the aggregates industry since 1991 and helped launch Aggregates Manager in 1996.

Cat rolls out its 6020B hydraulic shovel, matches 777G haul trucks

Nov 17, 2014

Cat rolls out its 6020B hydraulic shovel, matches 777G haul trucks

  Caterpillar unveiled its new 6020B hydraulic shovel before customers and the press at its Tinaja Hills proving grounds last week. With a 24-ton payload, the 247-ton unit is well matched with the Cat 777G haul trucks. "Today is a day I've ...

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Jackson Kelly PLLC named ‘Law Firm of the Year’ in mining law for 2015

Nov 10, 2014

Jackson Kelly PLLC, whose attorneys write the Rock Law column in Aggregates Manager, was named the 2015 U.S. News – Best Lawyers “Law Firm of the Year” for Mining Law. Jackson Kelly was also the first law firm to ever receive this honor by being ...

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Komatsu’s new artic offers bigger payload

Nov 07, 2014

Komatsu’s new artic offers bigger payload

Komatsu America Corp.’s HM300-5 articulated dump truck boasts 324 net horsepower and is powered by a Tier 4 Final Komatsu SAA6D125E-7 engine. The new truck delivers high levels of performance while reducing fuel and operating costs, Komatsu says. It has ...

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Luck Companies win state environmental award

Nov 06, 2014

Luck Companies win state environmental award

Associates from Luck Companies recently accepted a Gold Medal in the 2014 Governor’s (Virginia) Environmental Excellence Awards from state government officials. The company was honored for commitment to sustainability across all business units (Luck Stone, Charles Luck Stone Center, Har-Tru Sports, ...

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Cat releases its next generation dozer

Nov 03, 2014

Cat releases its next generation dozer

The Cat 824K Wheel Dozer builds on its predecessors with engineering refinements in its powertrain, operator station, and structures. With a new power rating of 405 horsepower and maximum operating weight of 74,966 pounds, the unit is available with six ...

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Crushing supplement products

Nov 01, 2014

Crushing supplement products

  Eliminates the need for tertiary crushing Hazemag says its Hazemag APS  Series secondary impact crusher is ideally suited to crush materials of medium hardness down to a cubical, well-graded product size of 0 to 3 inches (with 65 percent passing 1 ...

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Supply Lines: Like a well-oiled machine

Nov 01, 2014

Supply Lines: Like a well-oiled machine

New category of severe-duty motor oil Chevron Products Co. unveiled a new category of motor oil. Delo 400 SD SAE 15W-30 is an API CJ-4 heavy-duty diesel engine oil formulated using a new patent-pending technology to provide benefits for engines with ...

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Roll Outs – November 2014

Nov 01, 2014

Roll Outs – November 2014

Versatile loader The WA200-7 wheel loader, from Komatsu America Corp., features 126 net horsepower and is powered by a Tier 4 Interim Komatsu engine. It has 3-percent lower fuel consumption than the WA200-6 it replaces. Parallel Z-bar loader linkage gives the ...

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Hitting a safety milestone

Nov 01, 2014

Hitting a safety milestone

Martin Marietta’s Beckmann Quarry recently achieved a remarkable milestone — 2 million consecutive employee hours without a reportable incident. The operation’s safety track record extends back to 2007 when it set its sights on becoming a world-class operation in terms ...

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State and province news

Nov 01, 2014

California The Humboldt County Board of Supervisors straw voted through the draft General Plan’s Mineral Resources section during a review meeting, discussed the environmental impacts of mining on riverbeds, and laid the groundwork for extending the time period between mining permit ...

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DOL and industry roundtable convenes to talk roads, jobs, and safety

Oct 31, 2014

DOL and industry roundtable convenes to talk roads, jobs, and safety

Collaboration with the aggregates industry regarding challenges facing it and the nation was the focus of an Oct. 20 roundtable convened by Secretary of Labor Tom Perez, with input from Assistant Secretary of Labor Joe Main. The roundtable included members ...

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Volvo’s new excavators deliver fuel efficiency

Oct 27, 2014

Volvo’s new excavators deliver fuel efficiency

The Volvo EC250E and EC300E crawler excavators deliver a 5-percent improvement in fuel efficiency compared to past models. The gain is attributed not only to the Tier 4 Final Volvo engine, but also to a range of features that optimize ...

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