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Contractors World 2011 Volume 2 Issue 1
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New PC650LC-8 from Komatsu

The Komatsu PC650LC-8 hydraulic excavator, which sits towards the bottom end of the large machine range has operating weight of approximately 64,800 kg (143,000 lb), and an engine rated at 320 kW (429 hp). It is designed as a productive, reliable piece of equipment that improves upon the PC600LC-8.

The Komatsu PC650LC-8 hydraulic excavator, which sits towards the bottom end of the large machine range has operating weight of approximately 64,800 kg (143,000 lb), and an engine rated at 320 kW (429 hp). It is designed as a productive, reliable piece of equipment that has improves upon the PC600LC-8.The most significant improvements of the PC650LC-8 centre around an improved operator environment that provides better operator comfort and control. The new, highly rigid cab includes a heated, high-back, air-suspension seat; a seven-inch LCD colour monitor panel; and a standard rear-view camera that gives the operator the visibility and control to maximize productivity.

Additionally, an Arm Quick Return Circuit on the PC650LC-8 returns a portion of oil flow to the hydraulic tank at arm dumping to reduce hydraulic pressure loss. Combined with a new Arm Regeneration Valve, the work equipment speed has increased, enabling faster truck loading. With the addition of the one-touch Power Max function, digging force has been increased by 8%.

Other features include a stronger boom and arm; a fuel pre-filter with water separator as standard; and the hydraulic system is protected with the most extensive filtration system available, including high-pressure in-line filters for each main pump. These features improve machine reliability and reduce the likelihood that the unit will break down on the job, resulting in costly downtime.

Maximum dump height is 8.6 m (28’3”); maximum digging depth 10.225 m ( 33’7”) and maximum forward reach 14.435 m (47’4”). Bucket digging force at power Max. (ISO) is 32,300 kgf (71,210 lb) and the maximum travel speed (high) equals 4.9 km/h (3.0 mph). Designed for a wide range of heavy-duty applications, the model takes buckets capacities of 1.57– 3.81 m³ (2.05 – 4.98 yd³)

email the companyKomatsu America •


The new Case CX250C, CX300C and CX350C excavators replace models in the company’s B Series product line. They feature Tier 4 Interim-certified cooled exhaust gas recirculation (CEGR) technology for cleaner burns while delivering superior horsepower. Three new C Series excavators from Case

Case Construction Equipment has launched, into the North American market, its C Series full-sized excavator line with three new models which offer increased fuel efficiency, productivity and improved serviceability as well as operator comfort.

The new Case CX250C, CX300C and CX350C excavators replace models in the company’s B Series product line. They feature Tier 4 Interim-certified cooled exhaust gas recirculation (CEGR) technology for cleaner burns while delivering superior horsepower. These three new models deliver 132 kW, 154 kW, and 198 kW (177, 207 and 266 hp), respectively.

“Contractors are looking for lower operating costs and higher productivity. The new Case C Series excavators deliver both,” said Tim O’Brien, marketing manager, Case Construction Equipment. “In trenching applications, for example, the Case CX250C excavator can save as much as 11 litres (three gallons) of fuel per hour compared to competitive models. If an equipment owner puts 1,000 hours on a machine in a year, he can put $9,000 straight to the bottom line.”

The new Case Intelligent Hydraulic System technology reduces total fuel consumption and improves performance, O’Brien said. Boom Economy Control lowers engine RPMs during the boom down and swing operation, while the Auto Economy Control lowers RPMs when the joysticks are inactive.

“These fuel efficiency gains are especially significant,” O’Brien explained. “While typical CEGR systems lose fuel efficiency, we’ve actually increased fuel efficiency on our Case C Series excavators by up to 10% over our previous B Series models. This is noteworthy considering that the Case B Series excavators earned the prestigious Energy Conservation Award, bestowed by Japan’s Agency for Natural Resources and Energy, due to its fuel efficiency.”

Increased productivity

With up to 5% faster cycle times than previous models, the new Case C Series excavators can load up to 10 more trucks during every work shift. Along with faster cycle times, the new excavators offer operators smoother and easier control and manoeuvrability.       . . . CONT > > >

BROCHURES

New PC650LC-8 from Komatsu
Komatsu PC650LC-8

 

 

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