Rock Products - The Leading Voice of the Aggregate Industries.
  • Loadout and Transportation

    While the bulk of an aggregates operation’s equipment and technology focus is the equipment down on the quarry floor, producers are also seeking the latest innovations for moving material and portable machinery out the front gate and up the highway. Here are some recent product launches focusing on trucks, tires, trailers, diagnostics and vehicle scales. Read More
  • Troubleshooting Conveyor Malfunctions

    Here are some common areas of concern with conveyor belts and how to quickly repair them while on the job. Read More
  • The Rock 100

    Top Crushed Stone Producers List Read More
  • Rock Products 120th Anniversary - Part 3

    In This Issue, We Cover The Years 1911-1920. Read More
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Rock from the Road: Blog and Travelogue

Thumbnail Sept. 29, 2015 – It is going to be tough medicine for Big Yellow. Caterpillar has announced significant restructuring and cost reduction actions that are expected to lower operating costs by about $1.5 billion annually once fully implemented, according to the company. These steps will begin in late 2015 and reflect recent, current and expected market conditions. For 2015, the company’s sales and...

Prime-Time Products

Thumbnail Terex Minerals Processing Systems (MPS) recently added 5- x 16-ft. and 6- x 16-ft. two- and three-deck screens to its revolutionary line of “V” Series horizontal screens. Customers can enhance their operation by replacing their existing triple shaft screens with the “V” Series screens, according to the company.

Rock Stars

Thumbnail Charles F. Potts, chairman of the board of Indianapolis-based Heritage Construction & Materials, and past chairman (2008) of the American Road & Transportation Builders Association (ARTBA), is the 2014 recipient of the George S. Bartlett Award. It was presented to him Sept. 30 during ARTBA’s National Convention in Philadelphia.
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Manufacturers in Focus

Thumbnail Metso opened a new service center in Mesa, Ariz. The Mesa facility provides services for Metso's customers in the mining, aggregates and process industries. An official grand opening and open house event for the Mesa service center was held on Sept. 18, 2015.

People on the Move

Thumbnail Superior Industries Inc. named Mike Schultz its product manager for the company’s new crushing equipment product solutions. Schultz comes to Superior with two decades of past experience in the construction aggregates and metal mining industries.

120th Anniversary Celebration

Thumbnail In This Special Year-Long Series Celebrating Our 120th Year Publishing Milestone, Rock Products Presents A History Of The Aggregates Industry. In This Issue, We Cover The Years 1920-1930.  
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The national estimated average price-per-gallon for off-highway diesel fuel as of Oct. 1 is $2.200. That is lower than the previous comparison price-per-gallon of $2.275.


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Rokla GmbH Offers Blasting Alternative

German manufacturer Rokla GmbH has begun production of the latest generation of Webster Hydraulic Cutting Units under the brand name “Rockwheel.” The company is collaboration between Rokla GmbH and British engineer Ian Webster.

The Rockwheel is suitable for use in quarrying, demolition and building renovation, roadwork, trench construction, civil engineering, tunnelling, cutting slots and ditches, frozen ground, special underground engineering, removal of tree stumps and extraction of materials. According to the company, the Rockwheel can be a strong alternative whenever blasting is forbidden or not practical. Rockwheel cutting units work just as well underwater as in dry conditions without having to be modified.

“Our three-part Rockwheel cutting units provide the required maximum performance at all times but are significantly lighter in weight than those of the direct competitors,” said company founder Robert Piasecki. “As a result it is possible to achieve a powerful performance with Rockwheel cutting units – even with smaller excavators.”

All Rockwheel cutting units are equipped with high-torque hydraulic engines and are designed so that the picks, which are mounted on the drums at an optimal angle, can penetrate the material with maximum power.

In the middle-sized and medium-performance class, the Rockwheel cutting units have only three main components: the housing, motor and cutting heads (with picks). Currently the largest Rockwheel cutting unit being produced is for 4-ton excavators with a power of 140 kW to 220 kW.

The cutting heads of the cutting units operate smoothly and quietly while operating and rotate at a speed that achieves outstanding excavation and ensures a clean profile, the company said. The design and power components cutting units are adjusted so that the picks grip strongly and hardly ever bounce.

The Rockwheel is available internationally.

Rokla GmbH,