Rock Products

MAR 2017

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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86 • ROCK products • March 2017 EQUIPMENT & TECHNOLOGY MAINTENANCE & WEAR PARTS New Mack Engine Oil EOS-4.5 Extends Drain Intervals Mack Trucks announced extended engine oil drain intervals for customers using its newly formulated Mack Engine Oil EOS-4.5. Depending on the appli- cation, oil drain intervals have been extended by up to 15,000 miles com- pared with previous formulations, helping reduce customer maintenance costs. Introduced as the factory fill in Mack's 2017 engines, genuine Mack Engine Oil EOS-4.5 also extends drain intervals for all 2011 and newer Mack engines. "There is a misconception that Mack Engine Oil EOS-4.5 is simply a rebranded version of the other engine oils on the shelf, and nothing could be further from the truth," said Scott Barraclough, Mack technology product manager. "Mack Engine Oil EOS-4.5 is a proprietary formula that is tested and approved with Mack equipment, which allows us to extend drain intervals." With Mack Engine Oil EOS-4.5, drain intervals have been extended to 60,000, 50,000 and 40,000 miles for long-haul, regional-haul and heavy-haul applications respectively. During the life of a Mack truck, these extensions allow cus- tomers to skip between four and 16 oil drains, helping save hundreds of dollars per year per truck. Mack Engine Oil EOS-4.5 is available in 10W30 and 15W40 weights and meets Mack's stringent EOS-4.5 engine oil stan- dard, which offers protection above and beyond the new American Petroleum Institute (API) CK-4 specification by requiring enhanced performance for oil oxidation and oil aeration control. It is also formulated with a lower viscosity, helping improve fuel efficiency, even under high loads and high ambient temperatures. Mack Engine Oil EOS-4.5 can be used anywhere API CK-4 oils are recommended and is also fully backward compatible with all API CJ-4 applications. Mack Trucks, A new, patented cone mantle design offers improved crusher output based on initial field trials, according to Colum- bia Steel Casting Co. Inc. By looking beyond the concept of simple gravity feeding, Columbia's engineers have devel- oped a unique mantle modification intended to direct feed more efficiently into a crushing chamber. "We've found that filling a crushing chamber via typical grav- ity feed may not provide optimum, or maximum, material flow," said Steve Dolezal, Columbia product engineering manager. "Our high-output mantle design works by consis- tently drawing material into the chamber, producing a higher volume of crushed product." Early trials with customers in Canada and the Southwestern U.S. are promising, and Columbia looks forward to further testing. "I would encourage anyone at ConExpo-Con/Agg who is interesting in learning more about our high-output mantle to visit with me personally at the show in booth 30911," added Dolezal. "Bring us your questions, and let's see if this mantle could make a difference in your productivity." This same problem-solving focus is applied to jaw and gyra- tory crusher wear parts, as well. Columbia engineers design crushing surfaces to improve production and product sizing, while lowering discard weight and overall operating costs. Alloys are tailored to meet the level of impact and abrasion encountered by customer equipment, resulting in better overall plant performance. Columbia Steel said that it offers more jaw crusher plate styles than any other single manufacturer in the industry. Customer feedback has proven that the right jaw plate design can make a dramatic difference, depending on the applica- tion. Case histories reveal wear life increases of 50 percent, and some in which wear life increased up to 300 percent. A gyratory wear part study by a Columbia engineer or field rep can reveal many areas for potential improvement: poor nip of feed materials, excessive wear in lower crushing chambers, poor throughput from partially worn parts, significant wear metal discard costs, and problems with uneven or localized wear. Columbia Steel Casting Co., Columbia Steel Debuts New Cone Mantle Design

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