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Rock from the Road: Blog and Travelogue

article thumbnailDec, 17, 2014 – The U.S. aggregates industry faces a challenging year in 2015. Aggregates producers are looking ahead with anticipation to improved market conditions, driven by the resurgence in residential housing and increased activity from state DOTs, however, many questions remain.

Prime-Time Products

article thumbnailDyno Nobel, along with the efforts of joint venture partner DetNet, have made improvements to the DigiShot 300S system. The new DigiShot 300 RF system has been developed to improve safety of blasting operations. With this new system the blaster has the capability to fire remotely with a single box application. This allows the blaster to choose a firing location where both the bench and ingress...

Rock Stars

article thumbnailFormer U.S. Transportation Secretary Ray LaHood, appearing on 60 MINUTES, said that many of the roads and bridges we drive on every day are “on life support.”
More inRock Stars  

Manufacturers in Focus

article thumbnailA global innovator in bulk material handling is celebrating 70 years of designing high-quality equipment and accessories, serving customers in a wide range of industries around the world.  Along with spearheading efforts in safety and education, Martin Engineering has had a profound impact on efficient operations in coal, cement, aggregate, biomass and other industries across six continents.  This has...

People on the Move

article thumbnailSuperior Industries hired 20-year industry veteran Jason Adams as general manager of the company’s construction management division.

Latest Digital Issue

The national estimated average price-per-gallon for off-highway diesel fuel as of Dec. 3 is $3.336. That is lower than the previous comparison price-per-gallon of $3.421.

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