LIEBHERR A900CUS CRAWLER EXCAVATORS

Technical Description

The Liebherr A900CUS is a wheeled mobile excavator designed for versatile and efficient operation across various construction and earthmoving tasks. It features multiple boom and stick options allowing for maximum cutting heights ranging from 33 to 34 ft and maximum digging depths between 17.5 and 18.7 ft, with corresponding maximum loading heights from 23.6 to 24.8 ft and maximum reach along the ground from 28.9 to 30.2 ft. The excavator's shipping dimensions include a consistent height of 10.4 ft and length of 28.1 ft across boom options for easy transport. The bucket capacity varies from 0.4 to 1.2 cubic yards, with a reference capacity of 0.7 cubic yards, supporting different load requirements. The machine is powered by a Liebherr D924 TI-E engine delivering 118 hp (88 kW) at 1800 rpm with direct injection, turbocharging, and after-cooling, ensuring efficient emission control. It has a displacement of 403 cubic inches and operates on a 24 V system. Hydraulic performance includes a pump flow capacity of 71 gpm and system relief pressure rated at 5076 psi, which drives precise and responsive movements. The swing mechanism offers a maximum speed of 9 rpm and torque of 31.1 lbs ft. The transmission supports two forward and two reverse gears, with an oversized two-speed power-shift design plus creeper speed, enabling a maximum travel speed of 17.4 mph (27 kph). Dimensions incorporate a ground clearance of 1.3 ft, an overall width of 8.2 ft (12.1 ft with outriggers down), wheelbase of 8.4 ft, and an upper structure clearance of 4.1 ft. Tire size is 10.00-20. Operating fuel capacity is 79 gallons, with hydraulic fluid capacity of 85 gallons, accommodating long working cycles without frequent refills. The excavator’s robust design with options for outriggers and stabilizers ensures stability and lifting capacity suitable for demanding site conditions.