The CAT 120H is a highly reliable motor grader for road construction and maintenance. It is powered by a CAT 3116 DITA 6-cylinder turbo diesel engine, delivering 125–140 HP with strong torque at low speed. Equipped with a 3.66m (12ft) moldboard featuring 360° continuous rotation, it provides precise grading, leveling, and ditching performance. The robust frame, heavy-duty axles, and load-sensing hydraulic system ensure stability, durability, and high efficiency in tough job sites. Widely used in municipal roads, highways, and rural earthworks, the CAT 120H is a cost-effective choice for contractors worldwide.
Technical Parameters
Model: CAT 120H Motor Grader
Engine: CAT 3116 DITA, 6-cylinder turbo diesel
Rated Power: 93kW / 125HP (1–3 gears); 104kW / 140HP (4–8 gears)
Displacement: 6.6L (402.8 in³)
Operating Weight: ~12,650kg (27,880 lbs)
Moldboard Size: 3660mm (12.1ft) width × 610mm height
Moldboard Rotation: 360° continuous
Max Cutting Depth: 775mm (30.6 in)
Forward Speed: Up to 42.6 km/h (26.5 mph)
Turning Radius: 7.22m (23.7 ft)
Fuel Tank Capacity: 340L (89.9 gal)
Overall Dimension (L×W×H): 8.1m × 2.4m × 3.11m
Core Advantages
Genuine CAT 3116 DITA Engine
Original Caterpillar 6-cylinder turbo diesel engine, 140HP max power, strong low-speed torque, reliable performance, easy maintenance, and global parts support.
360° Rotation Moldboard
12ft heavy-duty moldboard with full 360° rotation, 40° front angle, and large side shift, ensuring precise grading & ditching in all directions.
Heavy-Duty & Durable Structure
Reinforced box frame, heavy-duty tandem axles, and thickened moldboard (22mm) deliver excellent durability under heavy loads and rough terrain.
Efficient Load-Sensing Hydraulics
39gpm variable piston pump with 3500psi pressure, providing strong blade pull (23,503 lbs) and smooth, responsive operation.
Comfortable Operator Environment
Isomount cab with low vibration, excellent visibility, and ergonomic controls, reducing operator fatigue during long shifts.
Applications
Road Construction: Asphalt base leveling, subgrade preparation
Road Maintenance: Patching, resurfacing, shoulder shaping
Earthworks: Land grading, site leveling, drainage ditching
Municipal Works: Snow removal, trench backfilling, parking lot grading
