Rock Products

APR 2018

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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www.rockproducts.com ROCK products • April 2018 • 33 All the Ranger DXi-Series top hammer surface drill rigs fea- ture a revolving superstructure. The new Ranger DX900i with 290-degree reach enabling drilling coverage of 592 sq. ft., saves working time and minimizes the need to reposition the rig. Despite the rig's ability to rotate, its counterweight structure ensures stability by maintaining weight opposite the boom. Ranger DXi rigs are extremely mobile, thanks to a low center of gravity and high tramming power. Operator ergonomics and low cabin noise has been the focus areas in developing this new iCab cabin. New user interface has been developed based on experience of several customer trials. Positive feedback has been received from good ergo- nomics and easy to use joysticks and control panels. In the new cabin, there is also room for a trainer behind the oper- ator seat. Thanks to long and successful co-operation with VTT, Finnish Technical Research Center, Sandvik has been able to lower the noise emission into the level never seen before in this type of drill rigs. Sandvik, www.sandvik.com SSAB SSAB introduced Duroxite 300, an iron-based steel alloy overlay deposited on mild steel. It is designed for extremely severe sliding wear for both dry and wet (slurry) abrasive environments. The overlay contains a unique high volume of ultra-fine borocarbides with a grain size refined down to 500 nm. The borocarbides are completely wetted in a ductile matrix resulting in a product with significantly improved service life that maintains high toughness in extreme sliding wear appli- cations. Duroxite 300 is an excellent alternative to tungsten carbide overlay. Key Benefits: • Extreme wear resistance in dry and wet abrasive environ- ments with a high degree of toughness. •  Cost-effective alternative to tungsten carbide with equiva- lent service life and better impact resistance. •  Overlay thickness is reduced compared to traditional over- lays resulting in a lighter weight product while increasing service life. •  Absorbs 25 percent more impact energy than the tra- ditional chromium overlay plate as measured by the continuous high impact lab test. • Has uniform through-thickness hardness of 67 to 70 HRC for single and multiple-layer overlay. Maintains a high hardness of approximately 60 HRC after exposure to high temperatures up to 1100 F (600 C). •  Maintains a consistent wear resistance from surface down to 75 percent of the overlay. Duroxite 300 is suitable for use in industries such as aggre- gates, mining, cement, oil sands, steel production and several others. SSAB, www.ssab.com Stedman Stedman multi-row cage mills pulverize, grind, crush and/ or mix abrasive and non-abrasive materials – wet, sticky or dry. The cage mills were discussed with customers at AGG1. The cage mills offer: • Fine, uniform grind up to 240 tph. • Reversible for extended wear life. •  Single-, two-, four-, or six-row cage assemblies are available. • Optional heaters and air cannons are available to reduce buildup of wet and sticky materials. •  A quick-opening housing provides minimum downtime during maintenance. •  Cage inspection requires about five minutes, complete change-out in as little as one hour. •  Aglime, coal, fertilizer, salts, potash, corn, aluminum dross, grains and gelatin applications. • Full-scale toll processing and testing available. Stedman Machine Co., www.stedman-machine.com Telsmith Telsmith Inc. exhibited at AGG1, introducing The Extra Mile campaign, which honors those who go the extra mile – from Telsmith employees to people within the aggregates and mining industry, and beyond. The heart of this campaign is partnering with The Independence Fund to donate a Track Chair to a severely wounded U.S. Veteran from the Houston area who is on the waiting list.

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