Pit & Quarry, February 2016
SPECIAL SECTION EXCAVATORS DREDGES Improved excavator responds faster offers more efficiencies The CX350D from Case Construction Equipment features improvements compared to previous models the company says According to Case cycle times are up to 12 percent faster improving responsiveness and multifunctional control and increasing fuel efficiency by up to 14 percent The excavator has an operating weight of 82483 lbs and features a 268 hp Tier 4 Final diesel engine with up to 56157 ft lbs of bucket digging force The company says this model is extremely versatile and operator friendly Like other D Series excavators the CX350D meets Tier 4 Final emissions standards through the combination of cooled exhaust gas recirculation selective catalytic reduction and diesel oxidation catalyst technologies The excavator is covered by a three year 3000 hour factory warranty www casece com Auto shutdown feature saves fuel when idle Doosans Tier 4 compliant DX350LC 5 crawler excavator provides users with a 10 percent fuel savings when compared with an equivalent Tier 3 model Whats more it automatically shuts down after a preset idle time during non working conditions to further save fuel Idle time can be set from 3 to 60 minutes An LCD screen gives the unit a modern update for operator comfort Other upgrades include ease of maintenance to protect uptime an auto belt tensioner for the fan and air conditioning anti skid plates for better traction on steps and other surfaces easy access to the emergency engine stop battery and alternator upgrades to minimize downtime and an angled floor pedal for improved operator comfort www doosanequipment com Design uses dedicated engine to supply power to pump The Series 2070 Dragon dredge by Ellicott is an updated version of the Series 1870 Dragon that had become the companys standard and in stock 20 in dredge The new model boasts a modern and efficient design with the same versatility of its predecessor The cutter suction dredge supplies ample power to the pump with a dedicated engine rated at 1300 hp with a separate 440 hp engine dedicated to the hydraulic system With two engines the operator gets full hydraulic power in the cutter and winches even at reduced rpms The new design meets BV rules for sheltered waters by reducing the number of side pontoons from four to two and by simplifying the bow gantry design In addition the hydraulic system is based on variable displacement pumps which require less fuel while delivering the same power www dredge com www pitandquarry com February 2016 PIT QUARRY 47
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