Engineering & Mining Journal

APR 2019

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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74 E&MJ • APRIL 2019 www.e-mj.com EQUIPMENT GALLERY Liebherr Mining Equipment Newport News Co. reported the latest upgrades for the T 264 hauler results in a higher payload capacity of 240 metric tons (mt). The hauler offers multiple engine options with power ratings up to 2,013 kilowatts (kW) or 2,700 horsepower (hp). The upgraded front-wheel design and braking system offer quicker reaction times to increase safety for operators, the company reported. The upgraded wheel motors and rear gear ratio boosts torque and acceleration to provide similar cycle times with 10% increased payload. The upgrades are offered as retrofi ts to existing units. The company's machine-health moni- toring solution, the Liebherr Mining Data System, comes standard with new haulers or is offered as a retrofi t. The T 264 is best matched with the Liebherr R 996 B and Liebherr R 9800 mining excavators, Liebherr reported. Separately, Liebherr showcased new con- fi guration options for its winch system solu- tions. The options ensure the customizabil- ity of the solutions, the company reported. The winch systems are developed to be modular and can be quickly delivered and set up, Liebherr reported. The com- plete winch is supplied pre-mounted on a frame. The control cabinet is attached to the winch frame and prewired per the customer's requirements or can be de- livered as a separate unit. The control and power electronics are factory-set to be plug-and-play ready, the company re- ported. Liebherr customer service assists with assembly and commissioning of the winch system at the customer's site. www.liebherr.com Popular Hauler Meets Tier 4 Rules Caterpillar reported the 797F hauler is available in a Tier 4 Final-compliant confi guration. The updated hauler is equipped with an exhaust aftertreatment system featuring selective catalytic re- duction, which uses diesel-exhaust fl uid to lower NOx emissions. The aftertreat- ment system uses less than 11% new content, Cat reported. The Tier 4 Final 797F reduces total specifi c fl uid-con- sumption costs in most applications. The 797F is powered by the 4,000-hp (2,983-kW) Cat C175-20 engine, avail- able with optimized fuel maps. It deliv- ers class-leading payload and speed-on- grade performance, Cat reported. Separately, Cat introduced a wet disk snubber upgrade for dipper doors on the 7495 Series electric rope shovels. The snubber is maintenance and adjustment free for its 12,000-hour life before re- build, the company reported. The snubber is retrofi ttable and available for both latched and LatchFree Cat Dippers installed on Cat 7495, 7495 HF and 7495 HD Electric Rope Shovels. The snubber up- grade can be retrofi t in about two days and is typically completed when the dipper is being rebuilt, the company reported. www.cat.com Hauler Upgrades Boost Capacity, Performance

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