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    New Modular Wash Plant At GS Materials Produces Specialty Sand For Pinehurst Golf Club. By Mark S. Kuhar Read More
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    Fracking boom helps Arcilla Mining double production, and it relies on heavy iron and smart financing to keep material moving. By Mark S. Kuhar Read More
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Rock from the Road: Blog and Travelogue

article thumbnailAugust 27, 2014 – We need more mining engineers! The Society for Mining, Metallurgy & Exploration Inc. (SME) has submitted comments to the White House Office of Science and Technology Policy regarding its request for information about critical and strategic materials supply chains and their importance to American prosperity and national security. 

Prime-Time Products

article thumbnailTerex Minerals Processing Systems (MPS) launched the new MJ47 primary jaw crusher module, increasing the application capabilities and crushing capacity of its existing modular product range with their largest jaw module to date. The Terex MJ47 jaw crusher module is designed for large quarries or contractors that want a stationary type design...

Rock Stars

article thumbnailAndy Williams of Rogers Group, current president of the Indiana Mineral Aggregates Association, encouraged members to "re-emphasize our commitment to safety as the first priority in our business."
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Manufacturers in Focus

article thumbnailHOLT CAT, the Caterpillar equipment and engine dealer for South, Central, North and Northeast Texas, opened a new location in Edinburg, Texas.

People on the Move

article thumbnailPolaris Minerals Corp., which is focused on the development of quarries and the production of construction aggregates, announced the appointment of Scott Dryden as vice president of Business Development.

Latest Digital Issue

Off-Highway Diesel Prices


The national estimated average price-per-gallon for off-highway diesel fuel as of August 28 is $3.548. That is lower than the previous comparison price-per-gallon of $3.565.

 

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, www.rockwheel.com