Kobelco SK260LC Acera Mark 8 Features Intelligent Control

Mon December 03, 2007 - National Edition
Construction Equipment Guide

The new SK260LC Acera Mark 8 hydraulic excavator from Kobelco Construction Machinery America Co. Ltd. features technology that provides precision control for fine grading and leveling applications. The SK260LC also delivers more horsepower, improved hydraulic flow and an impressive combination of bucket force, swing torque and drawbar pull forces, according to the manufacturer.

Powered by a 181 hp (135 kW) turbocharged fuel-injected engine that is Tier III certified, the SK260LC has an operating weight of 57,300 lbs. (25,991 kg), digs to 23 ft. (7 m) and provides a maximum reach of 33 ft. 3 in. (10 m) at ground line.

The SK260LC features Intelligent Total Control System (ITCS) that recognizes the operator’s moves and provides smooth hydraulic response. The auto-acceleration system on the SK260LC increases engine rpm and hydraulic flow in proportion to the operator’s movement of the control levers, resulting in even acceleration for precise operations. To extend engine life and reduce fuel costs, the auto-deceleration system reduces engine rpm after four seconds of operator inactivity.

“To meet Tier III engine requirements, the SK260LC is equipped with a proven 6-cylinder Iveco by FPT diesel engine with intercooler turbocharger,” said Paul Golevicz, brand marketing manager at Kobelco.

“The engine features 597 foot-pounds of net torque at 1,200 rpm, which is a 14 percent increase in engine torque. Swing torque on the new machine has also been increased by 10 percent, making it much easier to move heavy loads.”

The new excavator features a power mode system with four power modes to match the operator’s specific work operations.

H Mode (default mode) provides priority to the workload at high speed and is ideal for heavy-duty excavation work. S Mode provides fuel savings and is ideal for standard digging and loading work. B Mode is designed for breaker work (1-way hydraulic flow), and A Mode is ideal for demolition work with crusher/nibbler (2-way/2-pump flow).

The power boost system on the SK260LC provides 10 percent more power on command for increased bucket breakout force, without time limitations. The new excavator also provides drawbar pull force — with a 3,400-lb. (1,542 kg) increase — for climbing a grade under a heavy load.

The spacious cab on the SK260LC combines complete operational control, maximum comfort, easy egress, progressive hydraulic acceleration and a clear view of the work site for optimum performance.

“All major controls — including double-flow hydraulics for powering a wide range of tools and attachments, mode selection switches and heavy lift and independent travel switches — are located on the right side of the cab for easy access to critical functions,” Golevicz said.

The 7-position suspension seat can be adjusted to fit the comfort requirements of nearly every operator. Viscous silicon cab mounts help to minimize vibration and shock to the cab.

To reduce maintenance time and boost productivity, most routine service checks on the SK260LC can be performed easily from ground level, with access to filters, batteries and hydraulics. Side-by-side radiator, oil cooler and intercooler also are easily accessible for inspection and cleaning.

“Because the systems are independent, the radiator can be removed for service without the need to drain the hydraulic system,” Golevicz said.

The SK260LC Acera Mark 8 is designed for applications requiring maximum power, from digging trenches and carrying and setting pipe and trench boxes, to backfilling, clearing sites and loading trucks.

Kobelco offers a full line of compact, mid-sized and full-sized excavators ranging from 1.9 to 88 tons (1.7 to 80 t).

For more information, visit www.kobelcoamerica.com.

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