CATERPILLAR 112F MOTOR GRADERS

Technical Description

The 1972 Caterpillar 112F is a robust rigid motor grader equipped with a 6-cylinder Caterpillar D333 engine producing 100 horsepower at 2,200 rpm, delivering 176–196 net horsepower. The machine features a 12-foot wide moldboard with 24-inch height and 7/8-inch thickness, weighing 1,455 pounds with cutting edge. Operationally, the grader offers a maximum cutting depth of 28.1 inches and maximum lift of 18.9 inches above ground, with full 360-degree blade rotation capability. The moldboard achieves circle center shifts of 28.7 inches rightward and 29.6 inches leftward, with side shifts ranging approximately 20–26 inches depending on direction. Front steering reaches a maximum angle of 47.5°, while the frame allows 20° steering in either direction. The transmission features a countershaft torque converter powershift with 6 forward and 3 reverse gears. The unit is mounted on 14.00-24 multi-piece rim tires and includes safety features such as ROPS and a canopy meeting ISO standards for rollover and falling object protection. Overall operating weight is approximately 21,600 pounds base, with typical configured weight ranging 33,000–40,000 pounds depending on attachments. The machine includes an enclosed operator's cab with heat and hydraulic controls, direct-drive transmission, and hydraulic systems rated at 159 cc/rev steering capacity. Ground clearance measures approximately 28.9 inches, with front axle lean angles of 18° in both directions. This model represents a versatile workhorse suitable for road maintenance, construction grading, and land development applications.