CATERPILLAR M318F CRAWLER EXCAVATOR

Technical Description

The Caterpillar M318F wheeled excavator is a high-performance construction machine powered by a Cat C7.1 ACERT engine producing a maximum net power of 169 hp (126 kW) at 1750 rpm, with a bore of 4.1 inches and a displacement of 427.8 cubic inches. This 6-cylinder engine delivers peak torque of 578 lb-ft at 1400 rpm and meets U.S. EPA Tier 4 Final and EU Stage IV emission standards, ensuring compliance with modern environmental regulations. The unit features a maximum travel speed of 22 mph (35 kph) with a two-speed powershift transmission, offering creeper speeds of 1.9 mph and 7.5 mph, and a maximum drawbar pull of 23,155 lbs. Hydraulically, the M318F is equipped with a robust system operating at pressures up to 5,076 psi for normal implement and travel circuits and up to 5,366 psi for heavy lift functions. It delivers a maximum flow of 67 gallons per minute in the implement/travel circuits and 12.9 gallons per minute in the auxiliary circuit at medium pressure. The swing mechanism provides a maximum torque of 30,977 ft-lb and a swing speed of 10 rpm. The hydraulic system has a total capacity of 55.5 gallons. The excavator’s bucket holds up to 1.43 cubic yards, facilitating efficient digging with a maximum depth of 19.4 ft and a maximum reach of 30.3 ft at ground level. The undercarriage includes dual pneumatic tires (standard size 10.00-20) with 1.3 ft ground clearance and a 9-degree oscillation axle angle for stability and smooth operation. Total operating weight ranges around 40,000 lbs depending on configuration, supporting versatile boom and outrigger options. Fuel capacity is 87.2 gallons, with separate tank capacities for cooling (12.4 gallons), diesel exhaust fluid (9.1 gallons), and other systems to optimize uptime and serviceability.