Pit & Quarry, February 2013
ExcAvATIng dREdgIng Coupler engagement offers safety features The JRB PowerLatch multi pin grabber coupler from Paladin is available for excavators and loader backhoes According to Paladin the coupler employs several advanced safety features including an automatic blocking system ABS that ensures coupler engagement is maintained during hydraulic failure designed to work with a wide range of buckets and attachments the JRB PowerLatch features backup mechanical locks on both the front and rear attachment pins that are independent of the machines hydraulic locking and operating system The ABS mechanical system automatically locks both pins so coupler engagement is maintained even if hydraulic failure occurs www paladinconstructiongroup com Increased bucket capacity leads to higher productivity Hitachis Ex2600 6 excavator is heavier than its predecessor and has more engine hp and the backhoe version has increased bucket capacity Estimated productivity increases are 13 percent for the short reach backhoe and 4 percent for the loader version Loading time for the truck has also been lessened Hitachi says The bucket capacity for the backhoe version has been increased from 196 to 222 cu yd The reach of the backhoe front attachment has been shortened and the engine output boosted to achieve higher productivity Because the engine output has been boosted by 7 percent the cooling performance of the radiator and oil cooler has been increased as well to protect the engine and hydraulic devices thanks to the use of one 60 in fan rather than two 44 inch ones www hitachimining com www pitandquarry com February 2013 PIT QUARRY 25
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