CATERPILLAR M322F CRAWLER EXCAVATOR

Technical Description

The Caterpillar M322F Wheeled Excavator is powered by a Cat C7.1 ACERT engine delivering a maximum net power of 169 hp (126 kW) and a gross power of 173 hp (128.8 kW) at 1700 rpm, meeting Tier 4 Final/Stage IV emission standards. The engine features a 6-cylinder inline configuration with a bore of 4.1 in and stroke of 5.3 in, providing a displacement of 427.8 cubic inches (7.01 liters) and a maximum torque of 612 ft-lb at 1,400 rpm. The machine’s hydraulics include a system capacity of 107 gallons and provide high pressure auxiliary circuit flow of 66 gpm at 5076 psi, medium pressure auxiliary flow of 13.2 gpm at 2683 psi, and implement/travel circuit flow up to 94 gpm at 5076 psi. Swing mechanism operates at 9 rpm with a maximum torque of 43,988 ft-lb and pressure of 4496 psi. The excavator's drawbar pull reaches approximately 28,551 lbs, enabling robust maneuverability, with forward/reverse speeds up to 19 mph and a creeper speed mode for precise control. It supports various tire options including standard 11.00-20 dual pneumatic and optional 10.00-20 dual solid rubber tires. The excavator features a bucket with 1.87 yd³ capacity, a maximum digging depth of 21.8 ft, and a maximum ground-level reach of 33.8 ft. Service refill capacities include a 111-gallon fuel tank, 9.1-gallon diesel exhaust fluid tank, and cooling and lubrication systems optimized for sustained operation. The machine weighs between 47,377 and 49,229 lbs depending on configuration, equipped with front and rear outriggers or rear dozer, supporting versatile site stability for construction and earthmoving tasks.