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The CAT 140H Motor Grader is a highly regarded model from Caterpillar’s H-Series. Known for its power, durability, and efficiency, the 140H is used in various applications, such as road construction, maintenance, and large-scale earthmoving tasks. It offers advanced technology for accurate grading and long-term reliability.

Key Features and Specifications of the CAT 140H Motor Grader:

1. Engine and Power:

   • Engine Model: CAT 3306 (turbocharged, 6-cylinder diesel)
   • Net Power: 128-138 kW (171-185 hp), depending on the region and configuration.
   • Displacement: 10.5 liters
   • The engine provides high power and torque, suitable for heavy grading tasks while maintaining fuel efficiency.

2. Blade (Moldboard):

   • Blade Width: 12 feet (3.7 meters)
   • Blade Height: 24 inches (610 mm)
   • The moldboard can be adjusted for tilt, angle, and reach, offering exceptional control and precision for various grading tasks.
   • The blade is strong and durable, capable of handling both rough cutting and fine grading work.

3. Hydraulic System:

   • The 140H uses a load-sensing, closed-center hydraulic system, which adjusts hydraulic pressure and flow based on the task at hand.
   • This results in smoother, more efficient operation, giving the operator precise control over the blade and other attachments.

4. Transmission:

   • Transmission Type: Power shift, direct drive.
   • Speeds: 8 forward and 6 reverse speeds.
   • The automatic transmission allows smooth shifts and improves the machine’s efficiency, adapting to different load conditions with ease.

5. Frame and Articulation:

   • The machine has an articulated frame that allows for increased maneuverability, especially in tight or uneven spaces.
   • The articulation joint also improves the grader’s ability to make tighter turns, which is useful in complex grading situations.

6. Operator Comfort:

   • The cab of the 140H is designed with ergonomic controls, excellent visibility, and a comfortable work environment to reduce operator fatigue and enhance productivity.
   • The cab is spacious, with adjustable seats and controls. It also offers a clear view of the moldboard and surrounding area, which is essential for precision work.

7. Weight:

   • Operating Weight: Approximately 14,740 kg (32,500 lbs), depending on the configuration.
   • The weight provides stability during operation while allowing for efficient transportation between job sites.

8. Tandem Axles and Drive System:

   • The tandem axles are designed to provide optimal traction and stability, especially in rough or uneven terrain.
   • The machine typically comes with a rear-wheel drive, with optional all-wheel drive for additional traction and versatility in tougher terrains like snow, mud, or gravel.

9. Ripper and Scarifier Attachments:

   • The CAT 140H can be fitted with a rear ripper or scarifier for breaking up compacted soil or asphalt, expanding the range of applications.

10. Steering and Controls:

    • The 140H offers power steering, and the machine is controlled via a joystick or levers, giving the operator intuitive control over the grader's movements.

Applications:

• Road Construction and Maintenance: Used for grading and leveling roads before paving and for maintaining gravel or dirt roads.
• Mining: Ideal for haul road maintenance and other large-scale earthmoving tasks in mining operations.
• Construction: For general construction tasks, like site preparation and leveling.
• Landscaping: Grading large areas for commercial and residential landscaping projects.
• Agriculture: Preparing farm roads and drainage ditches.

Notable Advantages:

• Durability: The CAT 140H is built for longevity, with robust components designed to withstand tough working conditions.
• Power and Efficiency: Its high-powered engine and efficient transmission allow it to handle heavy workloads without compromising on fuel efficiency.
• Precision: The advanced hydraulic system and moldboard controls provide exceptional grading accuracy.

The CAT 140H Motor Grader is known for being a workhorse in the construction industry. Its combination of power, precision, and reliability makes it ideal for various heavy-duty applications, particularly in road construction and maintenance.

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