CAT 12H MOTOR GRADERS

The 2003 CAT 12H Motor Grader is designed for precision earthmoving and grading tasks, equipped with a 171 hp Cat C7.1 engine meeting Tier 3/Stage IIIA emissions standards, delivering robust power at 2000 rpm. The machine features an all-wheel-drive (AWD) option for enhanced traction and stability on challenging terrain, with a base operating weight around 33,250 lbs and a blade width of approximately 12 feet. The grader offers 8 forward and 6 reverse gears, with a top forward speed of about 30 mph and reverse speed near 24 mph. Its blade can rotate a full 360°, with side-shift capabilities of 26.1 inches left and 20.2 inches right, and blade tip angles up to 40° forward and 5° backward, enabling versatile grading operations. Maximum cutting depth is roughly 29 inches, with a lift height of about 19 inches above ground. The sophisticated hydraulic system utilizes a closed-center variable piston pump providing pressures up to 3503 psi and flow rates around 41 gallons per minute for precise implement control. The front steering allows up to 47.5° articulation, complemented by 15° front and 22° rear tandem oscillation to maintain grade on uneven terrain. This grader incorporates a CNC control system based on the FANUC 0i-MF platform, delivering advanced multi-axis control, high-speed machining features, nano-smoothing for surface finish, and extensive programming capabilities, facilitating accurate blade positioning and efficient operation in three axes (X: 40", Y: 20", Z: 25"). Overall dimensions approximate 120" length, 80" width, and 90" height, with a machine weight of about 8,000 lbs in this specific configuration, and a capacity rating of 500 lbs for ancillary attachments or tooling. The integration of CNC with robust mechanical features makes the CAT 12H a versatile and precise motor grader for a wide range of construction and maintenance applications.