CATERPILLAR 12M3 VHP PLUS MOTOR GRADERS

Technical Description

The 2019 CATERPILLAR 12M3 VHP Plus Motor Grader is a high-performance, articulated-frame machine designed for demanding grading applications. It features a 14 ft (4.3 m) moldboard blade, 17.5R x 25 tires, and a total of six tires for robust traction and stability. Powered by a diesel Cat C9.3 ACERT™ 6-cylinder engine with 9.3 L (567.5 in³) displacement, it delivers up to 231 hp (172 kW) with the VHP Plus option, providing strong rimpull and efficient operation. The engine produces a maximum torque of 920 lb-ft (1247 N·m) and features a 38% torque rise, ensuring consistent power across all gears. The machine is equipped with an 8-speed forward and 6-speed reverse transmission, offering top forward speeds of 29 mph (46.6 km/h) and reverse speeds of 23 mph (36.8 km/h). Hydraulic functions are controlled via dual joysticks, enabling precise steering, gear selection, and implement operation. The closed-center, parallel hydraulic system uses a variable piston pump with a maximum output of 210 L/min (55.7 gal/min) at 3,500 psi (24,150 kPa). The 12M3 VHP Plus has an operating weight of approximately 44,614 lb (20,236 kg), a maximum blade lift of 18.9 in (480 mm), and a depth of cut up to 28.1 in (715 mm). Designed for extreme conditions, it operates reliably up to 122°F (50°C) and features advanced emissions control meeting U.S. EPA Tier 4 Final/EU Stage IV standards.