Rock Products

JAN 2013

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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Change Doesn't Come Easy As Macy analyzed his particular situa‐ tion he considered operator comfort, noting that the material on his quarry floor tended to rut quickly, beating up the operator as he loaded trucks. He noted the shovel was stationary and operated on a level surface, which was much easier on the operator. Still Hawaiian Cement's operator was apprehensive. He'd never run this type of machine and wasn't con‐ vinced that it could do the job. "The learning curve was fast," Macy said. "In two or three weeks he was the biggest supporter of the shovel in this application. He's fully onboard with the shovel now." Crunching the Numbers Production, operating efficiency, and maintenance costs were Macy's met‐ rics, and some intensive number‐ crunching made a compelling case for the shovel. "The shovel makes five passes per load. It keeps four trucks busy all shift long and that's the kind of pro‐ duction we were looking for," he said. First, Macy considered the shovel would be the primary machine at the quarry and that 50 percent of his workforce would be directly affected by its performance. Uptime was obvi‐ ously a critical factor, so he dug deeper into the machine's history. His homework only increased his confidence that the EX1200 was right for his operation. Operating cost was his second con‐ cern. Again, his homework bore out the case for going to the shovel. Fast‐forward a year, and the com‐ pany reports that the EX1200 is per‐ forming flawlessly. "There's been virtually no downtime and our cost savings have far ex‐ ceeded our expectations," Macy said. "Fuel economy is great and mainte‐ nance costs were even less than what Hitachi estimated. Even with fuel costs going out of sight last year, our www.rockproducts.com cost per hour is 25‐percent less. Re‐ placing the dozer and loader with one machine was just icing on the cake." No Trouble in Paradise Running an operation like Hawaiian Cement, in an idyllic location, is not without its special challenges. One of the most important factors is parts availability. "You can't afford to hear that the pump for your main produc‐ tion machine won't arrive for three weeks. That's why a dealer's capabili‐ ties is a big consideration here in Hawaii," Macy said. Macy is well pleased with the support his Hitachi dealer, American Machin‐ ery, provides and notes their strate‐ gically placed facilities on all of the major islands. "Their parts departments are well stocked and their service people are very capable. If we need something, they'll have a truck here in no time," he said. Macy's homework paid off big time. He knew the switch to the EX1200 would effect his operation for the next 10 years and thinks this move will pay big dividends. "We're into our second year with the EX1200 and I'm confi‐ dent it will give us great production for a long, long time," he said. E Information for this article courtesy of Hitachi. Hawaiian Cement Hawaiian Cement is a vertically integrated construction materials company supplying cement, aggregate and ready-mix concrete in Hawaii. They also provide bagged masonry cement, golf course sand, decorative stone and other landscaping products and materials. The company is a critical part of residential, commercial and public construction projects throughout the state. Hawaiian Cement includes a team of more than 200 employees whose dedication and experience are focused on providing lasting customer satisfaction with both our service and products. Hawaiian Cement and its predecessor companies have a history of supporting the state's construction needs going back to 1939. West Hawaii Concrete, headquartered in Kailua-Kona on the Big Island, is part of the Hawaiian Cement family and is expanding the company's reach on the largest Hawaiian island. n Cement – Hawaiian Cement is the largest cement producer and supplier in the state of Hawaii. n Aggregate – Hawaiian Cement is one of the state's top three aggregate providers. n Ready-Mix Concrete – Hawaiian Cement is the state's second-largest ready-mix supplier. n Colored Concrete Products – Hawaiian Cement has a liquid coloring system that now makes concrete a leading design choice. They can provide custom coloring, designs and textures. EX1200 Specifcations n n n n Engine Gross Power: 567 kW (760 hp) Operating Weight: EX1200-5D n Backhoe: 108,000 kg (238,100 lb.) n BE-front: 109,000 kg (240,300 lb.) n Loading Shovel Bucket: 111,000 kg (244,500 lb.) Backhoe Bucket: n PCSA (1:1) Heaped: 3.0- 6.5 m3 (3.92- 8.50 yd.3) n CECE (2:1) Heaped: 2.7- 5.7 m3 Loading Shovel: n PCSA (2:1) Heaped: 5.9- 6.5 m3 (7.72- 8.50 yd.3) ROCKproducts • JANUARY 2013 29

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