Buy Smart: Three Motor Graders That Deserve a Close Look

Motor graders are a classic equipment category. They cut crown, clean ditches, and can even move snow in the winter. These machines roll in and create beautiful flat surfaces or slope everything from drainage to driveways. They wield attachments like rippers, V-plows, brooms, and snow wings. They also glide by quite unassumingly when you're on a jobsite or you see one pushing snow. That's probably because they're operated by skilled magicians, traditionally using like eight to 14 levers; fyi: here's a good article that explains motor grader lever controls.

Today's a little different — like operators can use joystick controls. Modern motor graders come with digital tools like 2D and 3D grade control, machine protection features that help prevent moldboard and frame damage, and unique operator tech like auto-articulation and blade flip. These machines are pretty next-level all around — in price too. Entry-level motor graders will set you back between $100,000 and $200,000. Big mining motor graders can cost like $800,000 — some nearly $1.8M. 

Let's learn how to build a road with a motor grader

I found this great story from an old friend named Larry Stewart. “How to Use Motor Graders to Build Better Roads” is over 15 years old, but it’s still one of the best reads on the internet when it comes to motor grader insights. Larry walks operators from basic maintenance work to the refined art of finished grading, showing how real pros use every inch of an articulated motor grader to build crown, control drainage, and shape slopes. With insights from Volvo and Caterpillar trainers and seasoned union instructors, the story breaks down things like proper road crown (1/4- to 1/2-inch per foot), super elevation in curves, ditch depth, and moldboard angles. It’s packed with some nice field advice — from setting up a rolling windrow instead of dozing material, to repositioning the link bar for pro ditch work. Read the full article right here. 

Motor grader maintenance prechecks to reduce downtime and repairs

Most motor grader problems start as small leaks, loose hardware, or trash packed into places trash should not live. Make walkarounds non-negotiable. Here's a quick list of checks (certainly not all of them), but you can get all those check by clicking on this Construction Equipment article, which is where we got them.  

• It's necessary to check the inflation of tires to ensure they can take the weight of the machine. If the tires are not properly inflated, it may lead to higher fuel consumption.
• Transmission leaks should be checked for regularly. Transmission leaks can lead to malfunctioning or underperformance. Any leaks found should be repaired immediately.
• The articulation area needs to be checked for trash or dirt buildup since the buildup can lead to problems with the movement of machine parts, and eventually cause breakdowns or system failures.
• Blade and end bits need to be checked for excessive wear or damage. The blade receives the most stress during work, so it should be kept in the best state at all times and cleaned regularly to ensure rust doesn’t set in.
• Engine oil fluid levels should be checked and topped up if required, with appropriate quality and quantity of the recommended oil.
• The air filter restriction indicator should be monitored. A choked air filter can lead to poor performance and increased fuel consumption.
• Mirrors and windows should be checked for damage and cleanliness. Dirty windows and mirrors affect operator visibility and can led to accidents.
• Fire extinguishers have to be present in the cabin and be charged. Any damage to fire extinguishers should be reported.

Motor grader brands and models that are worth a look

John Deere P-Tier SmartGrade Motor Graders

John Deere just relaunched its motor grader lineup this week. These new P-Tier motor graders — models 620, 622, 670, 672, 722, 770, 870, and 872 — bring next-generation SmartGrade technology and operator-focused automation to modern grading operations. This SmartGrade system integrates seamlessly with Topcon or Leica solutions and allows operators to easily switch between 2D and 3D grade control using the in-cab G5 touchscreen display. Automation tools such as intelligent blade control, SmartSaddle positioning, blade flip functions and cross-slope modes help crews maintain consistent grading accuracy while improving productivity. A redesigned cab adds improved seating, ventilation, climate control and simplified controls, while optional Advanced Vision Systems (with Dual Front Alley Cam) enhance situational awareness with expanded camera coverage. Wireless data transfer and remote troubleshooting through the John Deere Operations Center streamline fleet management and uptime. For more info, visit this website.

LiuGong 4215D Motor Grader

Last summer, LiuGong announced the 4215D motor grader, aimed at North American infrastructure work, delivering an interesting combination of durability, power and operator comfort. Powered by a Cummins Tier 4 Final/Stage V engine, the machine can spearhead grading operations ranging from highway construction to airport runway maintenance. The 4215D utilizes a ZF 6BP fully automatic transmission featuring all-electric controls. The grader also delivers 1,700 N·m (1,253 lb-ft) of torque for smooth shifting and precise control. The hydraulic system operates at up to 3,045 pounds per square inch or psi. Inside the cab, operators benefit from a 324-degree panoramic view, dual-joystick controls, air-suspension seating, and Bluetooth-enabled displays that support productivity during long shifts. Maintenance-friendly features such as wide-opening service panels and a reverse fan cleaning system help reduce downtime. For more info, visit this website.

Caterpillar Cat 140 Next-Generation Motor Grader

Caterpillar’s next-generation Cat 140 motor grader builds on the platform’s legacy of versatility with improved efficiency, visibility, and technology integration. Designed for applications ranging from municipal road maintenance to heavy grading, the machine features the successful cab design from the 120 Next Generation models, integrated rearview camera systems, and a 10-inch touchscreen interface supporting Cat Grade functionality. Operators benefit from improved seat adjustment options and enhanced HVAC performance. The grader offers tandem or all-wheel drive configurations to match jobsite requirements, while centralized service checkpoints and synchronized maintenance intervals simplify upkeep and help increase uptime. Cat says the new 140 provides a sweet spot when it comes to power-to-weight ratio with excellent fuel consumption rates. For more info, visit this website.