LIEBHERR A944CHD CRAWLER EXCAVATOR

Technical Description

The Liebherr A944CHD is a wheeled material handler excavator engineered for demanding industrial applications requiring superior reach and lifting capacity. Powered by a Liebherr D 936 L six-cylinder turbocharged and after-cooled diesel engine producing 258 horsepower and 190 kilowatts at 1,800 RPM, this machine delivers consistent performance across varied working conditions. The engine features a displacement of 640.8 cubic inches with reduced emissions technology complying with Tier 3 standards. The hydraulic system comprises two variable flow swash plate pumps with a combined capacity of 80.1 gallons per minute, operating at a maximum pressure of 4,980 PSI, enabling rapid work cycles and precise control. The machine accommodates three boom and stick configurations: a 9.5-meter boom with 8-meter stick, a 9.5-meter boom with 9.5-meter stick, or a 9.5-meter boom with 8.8-meter stick paired with a grapple model 70 C. These configurations provide maximum reach along ground ranging from 52.5 to 59.1 feet and maximum heights between 62.4 and 71.2 feet. Weighing 126,300 pounds without attachment, the A944CHD operates on a 11.9-foot wheelbase with oscillating steering axles and hydraulic lock capability. The four-point stabilizer system with suspended rocker arm supports ensures stability during lifting operations. Operating specifications include a 174.4-gallon fuel capacity, 195.5-gallon hydraulic system fluid capacity, and 24-volt electrical system with 80-amperage alternator. The swing mechanism rotates at 8 RPM steplessly with 125 kilonewton-meter torque, while travel speed reaches 6.3 miles per hour, making this machine suitable for scrap handling, demolition, and material processing applications.