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 • 35 L90H wheel loader at AGG1. The H-Series 2.0 machine offers improved fuel efficiency, productivity, serviceability and ease of use over its predecessor and competitive products. "The L90H wheel loader features updates to its transmission and torque converter that shorten cycle times and provide up to 20 percent greater fuel efficiency. It also has a higher tipping load and dump height," said Chris Connolly, product manager, wheel loaders at Volvo Construction Equipment. Among the new features are: • Delayed engine shutdown. Reduces engine wear by avoid- ing hot turbo shutdowns. • Electro-servo hydraulic controls. Features adjustable sen- sitivity and allows operators to shift quickly between linear and single-lever controls. •  Torque converter lockup with selectable modes. Lowers rpm and increases speed, saving fuel. •  New loader arm design. Optimized design resulting in increased payload. • Slidable cooler. Provides easier access to remove dirt and debris. •  Rim pull control. Reduces wheel spin and slippage, thereby saving fuel, reducing tire wear and improving productivity. • Tipping load. Increased by 3.4 percent increase over pre- vious generation. • Dump height. 3 in. higher than prior generation. •  External axle coolers. Minimizes the risk of overheating and prolongs axle oil change interval. •  Smart Control. Improves engine and hydraulic harmony, improves fuel efficiency and lowers driveline duty. •  Smooth Control. Improves fuel efficiency and operator comfort during load and carry/transport. The L90H, as well as updated L60H and L70H models, will be available in late summer 2018. Note that all new features may not be available on all models and all new features may not be available at the same time for any given model. In February, Volvo launched H-Series 2.0 updates on three larger models of wheel loaders: the L150H, L180H and L220H. Volvo North America, www.volvoce.com Wirtgen (Kleemann) A series of four new MOBISCREEN EVO aggregate classifying plants from Kleemann complements Kleemann's mobile jaw, impact and cone crushing plants with easy mobility, flexible application options and high output. Now being introduced to North America, Kleemann's four new classifying screens are the track-mounted double-deck classifying screens MS 702i EVO and MS 952i EVO, and the triple-deck classifying screens MS 703i EVO and MS 953i EVO. The two plant sizes have a screening area in the upper deck of 75 or 102 sq. ft., respectively. As with the crushing plants, the classifying screens with their convenient transport dimensions and short setup times optimize the productivity of contractor crushing operations. The MS 702i/703i EVO achieves a maximum output of 386 tph and the MS 952i/953i EVO an hourly output of up to 551 tons. An optimized material flow through the plant makes this possible. It starts with feeding, which thanks to the generously sized feed hopper, is possible both with a wheel loader as well as an upstream crushing plant. The material on the extra-wide feeding conveyor is conveyed to the screen box. The screen- ing angle of the box can be adapted to the application. An impact plate at the conveyor discharge distributes the mate- rial evenly on the screen surface, keeping wear to a minimum and achieving a high output. Kleemann also puts safety first with MOBISCREEN EVO screening plants. These new screening plants are operated by a mobile control panel that can be installed at three dif- ferent points on the machine, guaranteeing ideal visibility during operation. All plant functions are started automatically, without each side discharge conveyor having to be activated individually. Data on machine operation can be read off at the operator panel. The plant is moved without jolts thanks to the propor- tionally activated hydraulic valves. When interlinked with MOBICAT jaw, MOBIREX impact, or MOBICONE cone crushing plants from the EVO series, whose size and output are tuned to the EVO screening plants, the plants work particularly efficiently and achieve a high output. An emergency-off function enhances safe working conditions. The large engine compartment ease maintenance, and further service components are easily accessible via the all-round work platform. Thanks to the easy access to the screen deck, it's now easier for users to change screen media. The fines conveyor can be lowered, for example, to allow access to the lower screen deck. From a large number of screen media, Kleemann offers the suitable surface for each application. Wirtgen, www.wirtgen-group.com/america Look for more AGG1 product updates in upcoming issues of Rock Products.

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