Technical Description
The 2012 CAT 12M Motor Grader is a versatile, high-performance machine engineered for precision grading and earthmoving tasks. Powered by a Cat® C6.6 ACERT™ VHP engine, it delivers a net power range of 158–193 hp, with a displacement of 7.2 L and a maximum torque of 1,052 N·m at 1,000 rpm. The engine features advanced power management and meets stringent emissions standards. The transmission offers up to 8 forward and 6 reverse speeds, with a top forward speed of 29.0 mph and reverse speed of 22.9 mph. Steering is precise, with a 47.5° front steering angle and a 20° articulation angle, while the hydraulic system uses a closed-center, load-sensing design with a variable piston pump, delivering up to 3,500 psi and 51 gal/min flow. The machine is equipped with a 3.7 m (12 ft) moldboard, with optional 4.3 m and 4.9 m blades, and offers a maximum depth of cut of 715 mm and lift above ground of 480 mm. The blade can be shifted up to 660 mm right and 510 mm left, with a maximum position angle of 90°. The 12M features a robust 6x4 axle configuration, hydraulic-actuated drum brakes, and a modular rear axle for easy serviceability. The operator station includes advanced joystick controls, electronic throttle, and a comprehensive gauge cluster. The machine’s dimensions are approximately 8.75 m in length, 2.51 m in width, and 3.31 m in height, with an operating weight of around 18,400 kg. Optional 3D grade control systems, such as Cat Grade with 3D, provide centimeter-level precision for automated blade positioning.
