Your complete guide to new and updated equipment and supplies in the aggregates industry.

By Kerry Clines, Senior Editor

Delivers maximum digging force

Komatsu America Corp. says its new PC160LC-8 hydraulic excavator delivers maximum digging force, low noise level, and excellent fuel economy. The excavator has an operating weight of 36,770 to 37,740 pounds and is powered by a Komatsu SAA4D107E-1 engine. Its electronically controlled high-pressure common rail, fuel-injection system is EPA Tier 3-emissions certified.

Equipped with the latest Komtrax fleet monitoring system and wireless technology, the excavator’s operating data — operating hours, location, cautions, and maintenance alerts — are sent to a secure Web site for analysis.

Special features include the following:

• Large 7-inch LCD monitor that displays data;

• Easy service and maintenance access and Komatsu’s Equipment Management Monitoring System;

• Reliable, exclusively designed frame and electronic components;

• Five working modes designed to match engine speed, pump flow, and system pressure to specific application requirements with one-touch Power Max control to increase digging force by 7 percent for 8 seconds when additional digging power is needed; and

• A wide, spacious cab with a high-back seat for reduced operator fatigue.

Breaker with improved box design

Atlas Copco’s new HB 3100 hydraulic breaker has a service weight of 6,944 pounds and is suitable for carriers in the 66,139- to 114,640-pound class. Features include the Vibro-Silenced System to reduce noise and vibration, AutoControl to adapt blow frequency and impact energy to hardness of the rock, and the ContiLube II automatic lubrication system. StartSelect allows the operator to choose the startup and shutdown process to match the application. The PowerAdapt system shuts down the breaker when oil pressure exceeds the maximum input value, while an improved box system provides better stability and resistance. An optional DustProtector two-stage seal system protects the hammer unit and bushings from dust and rock particles in the lower part of the breaker.

Breaks down into flyable modules

Boart Longyear says its new flyable SC11 surface drill rig is the only compact and modular rig in its class that offers 5,456 Nm of torque and can manage PQ-size rods. The drill rig delivers large-diameter, deep-hole drilling with a 132 kN pullback rating and features a variable-speed motor. The rig was designed to easily break down into flyable modules, with the heaviest lift being only 680 kilograms. Lifting points are positioned at the module’s center of gravity for balance. Quick-connect hydraulic couplings accelerate assembly/disassembly and prevent oil spills.

Matches power percussion to the rock

Atlas Copco says its new ROC T35M drill rig features the COP 1840 rock drill with 18 kW of drilling power to drill holes ranging from 2.5 to 4 inches in diameter to a depth of 82 feet. Powered by a Cummins QSB 6.7 Tier III engine rated at 190 horsepower and 2,300 revolutions per minute, the rig matches percussion power and feed to the rock. The unit features a carousel with rocker switch rotation and single joystick control. The carousel can handle up to six, 12-foot rods plus a 14-foot starter rod.

3-D excavator guidance system