Motor Grader

What is Motor Grader

A motor grader is a construction vehicle used to maintain unpaved roads and establish the final grades on construction projects. They are designed to create flat surfaces and can spread dirt and remove debris. They are best recognized for their long adjustable blade. Motor grades are also suitable for different applications, which can be accomplished by attaching particular units on the machinery. There are two types of motor graders, depending on the arrangement of the frame. The rigid frame type has a single axle and cannot turn in both directions about a point while the articulated frame type has a hinge between the two axles. The feature of the latter makes it suitable for turning around in small spaces.

Advantages of Motor Grader

High-quality grading precision: When you need a machine that can deliver spot-on precision with every application, a motor grader is fit to handle the task. Whatever the project requirements, your equipment will provide a smooth, even surface that meets your exact specifications.

Compatibility with multiple attachments: A motor grader can be almost anything thanks to its compatibility with a variety of attachments. It's easy to use plow and ripper attachments to turn your grader into a multi-purpose machine that can plow snow and break up asphalt.

Great work speeds: While motor graders operate on wheels, they tend to have great traction on several types of terrain. They're also highly efficient, capable of working at quick speeds and traveling between job sites. You can even drive them on the street without a hassle!

Project versatility: The best part of having a motor grader is that it can work almost anywhere. High-quality graders are designed to arm your fleet with better versatility by offering a broad range of capabilities in a single package. From small bulldozing tasks to grading projects in compact spaces, your motor grader can handle almost anything you throw its way.

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The products are sold in more than 30 domestic provinces and autonomous regions, and exported to more than 170 countries and regions such as Europe, Africa, South America, and Russia. With high-quality products and good reputation, it has won unanimous praise and wide acclaim from domestic and foreign customers, and has made its own contribution to China's machinery manufacturing going to the world.

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Types of Motor Grader

Small motor graders
Small motor graders have small blades to fit in small or tight areas. Most of the time, they have the same controls as larger machines, used for the same purposes. Road graders of this size are commonly used for small construction jobs or landscaping.

Medium motor graders
Medium road graders have longer blades that can cover long stretches of land. They also have larger wheels and are used for larger jobs. Medium motor graders are commonly used for highways, roads, and large construction sites.

Large motor graders
Large graders are sometimes called “heavy motor graders”. The large motor grader is also used to prepare large areas of land for residential or commercial use.

Rigid frame motor grader
The rigid frame motor grader is the most traditional kind, and it is usually used for everyday grading tasks. Rigid frame motor graders are commonly used to grade farm or construction use. This motor grader has a long rectangular frame that forms a rectangle. It has four wheels attached to it on the frame. There are two on the front of the frame and two on the back. Meanwhile, the blade is attached to the frame by hinges, and it swings back and forth depending on how the machine is being operated. To control it, on the far back of the machine, at the tail end, is a push bar that is used to steer the machine.

Articulated frame motor grader
Articulated frame motor graders are usually used for larger jobs. This type of machine has an articulated frame attached to two larger wheels. Each wheel has a steering wheel attached to it. The steering wheel is used to steer the blade along the road's surface. Both wheels can pivot to allow the machine to turn in tight areas and driveways. The best thing about articulated frame motor graders is that they can go anywhere a truck can, and go faster than a small framed machine.

What Are the Parts of a Motor Grader

Rippers

Ripper attachments break into a solid area and loosen the dirt or soil. You can use a ripper attachment to prepare a site for the grading or leveling process, and it is also helpful for clearing land in mining applications.

Snow wings

Snow wings come in either masted or mastless forms. Use snow wings to easily clear snow on roadways. These attachments work in high- or low-speed applications.

V-plows

The v-plow is a specific type of snowplow. It's a large size with two pieces coming together in the shape of a “v.” you can use this attachment for areas with heavy snow that is difficult to clear with other attachments. The v shape allows the plow to push snow far on both sides.

Tire chains

Tire chains are helpful for gaining traction. They are especially useful during the winter months when a motor grader could experience sliding and poor traction.

Straight front blades

A straight front blade is one of the most versatile attachments for a motor grader. You can use a straight blade for everything from snow removal to leveling and dozing. Straight front blades come in multiple sizes to match your application.

Front-mounted hydraulic brooms

A hydraulic broom attached to the front motor grader work well for jobs where you need to remove large, loose materials, such as rocks or debris.

Application of Motor Grader

Several industries make use of motor graders, including:

Construction: Workers use a motor grader to level a surface before laying the foundation for a home, building or other structure.

Road work: Streets, highways and parking lots wouldn't exist without motorgraders. An operator uses this equipment to flatten and smooth a surface before laying asphalt. You can also use this machinery to maintain unpaved roads.

Snow removal: Places that receive significant snowfall require plowing. With the right attachment, a motor grader can be used to push snow out of the way.

Agriculture: Soil prep for the new planting season is simple with a motor grader. You can also use this equipment to make dirt tracks or roads on farms.

Mining: Miners need a safe place to drive their equipment. Whether the work is above or below ground, a motor grader can smooth surfaces for this purpose.

Landscaping: Graders are helpful for tasks such as forming drainage ditches and creating slopes.

How to Operate a Motor Grader Safely

A motor grader is a sizable piece of equipment with a distinctive design, which proves how far construction machinery has come in terms of technology. Due to its rugged design and a broad range of capabilities, it is widely used in demanding outdoor applications, such as paving roads, compacting materials, and many others. Although motor graders have been designed to ensure operator safety while delivering a high level of performance, it is important to know how to operate them safely, so as to avoid potential mishaps at construction sites.
Here are some practical tips to operate a motor grader safely:

Position the grader correctly
Keeping your machine stable while maintaining a road surface starts with ensuring that the mainframe of your motor grader is straight. Therefore, make sure that the drawbar and circle remain centered under the frame. For maximum pass width on the road surface, keep the moldboard angle as square as possible to your motor graders' frame. In case the material begins to flow around the moldboard's leading end or the rolling action stops, it is best to increase the blade angle.
To avoid machine bounce, operate the grader at a low speed. Besides, avoid running over windrows to prevent sidewall damage from sharp rocks.

Use proper moldboard tip angle
Using the moldboard tip on a motor grader properly not only increases the machine's productivity, but also helps prevent machine damage. You can either tip the moldboard behind or ahead of the cutting edge. This will ensure that the cutting edge is at the correct angle required to get the desired cutting and rolling action on any material. You must also maintain a rolling action on the material in order to reduce the amount of horsepower you require to complete the job.
When you are cutting hard materials or performing light finishing jobs, tip the moldboard of your machine in the forward direction. Once you are done cutting into the material, tip the blade backward to create a smooth, rolling action in the material that is being graded. Following these simple steps will ensure smooth operations, while safeguarding your motor grader from damage.

Always wear the recommended ppe and seat belt
Be mindful of your safety when operating a motor grader and wear the recommended ppe, such as safety goggles, work boots, etc. Additionally, you must always fasten your seatbelt. Some motor grader models come with an operator presence seat switch which keeps the parking brake engaged as well as the hydraulic implements disabled until the operator sits in, and the grader is all set to operate.

7 Inspection Tips for Used Motor Graders

Check the circle
You'll find moldboard mounted around the motor grader's circle. When a motor grader operator moves the circle's position or angle, the moldboard's angle and tilt will adjust as well. If the circle hasn't been maintained properly, it'll be much more difficult to complete fine grading tasks. Since the circle is so crucial to your moldboards and your motor grader's ability to complete fine grading tasks, you must inspect it carefully.

Check the frame
One of the easiest checks you can do is to inspect the frame of the motor grader before you purchase it. Look for any cracks or other signs of damage. Additionally, be on the lookout for fishplates, which are metal reinforcements installed on one side or another of a crack to help repair it. While fishplates aren't necessarily a bad sign, ensure an experienced and professional welder installed them.

Check moldboards
You should inspect the cutting edge of a moldboard to ensure it's still on straight. This section should be bolted across the bottom and along the sides of the moldboard. Inspect the moldboard's cutting edge to see if its center has cupped due to soil or rock wearing it down.
It's important to always replace the cutting edge on time, as it's much more expensive to replace a moldboard than it is a cutting edge.

Check the articulation point
In any motor grader inspection, you need to inspect the articulation point for repairs or any wear. The repair costs associated with an articulation point can be quite hefty, so you don't want to be stuck with a bad one. Another problem area you should search for is if the engine compartment is resting lower than the cab, indicating a bent articulation point.
In addition to looking at the engine compartment's height, you should look to see if the linkage system has put strain on the frame, resulting in damage. If you notice damage or repairs, see if the steering components are working appropriately.

Check the linkage system
At the front of your motor grader, you should inspect the linkage system. Over time, an operator leaning or turning tires can cause strain, leading to damage to the frame and linkage system. If any damage has occurred, you can usually find it on the front axle and the inside of the frame. If you think there might be damage, you can inspect the steering components to ensure everything is straight.

Check the hydraulics
Before you start inspecting the actual parts of the hydraulic system, look at the ground underneath the motor grader. If the hydraulic system is leaking fluid, you'll likely find evidence of it with fluid on the ground. After you've checked for fluid leaking, you should also inspect the engine compartment's houses and lines, cylinders, the circle drive housing and other primary parts of the hydraulic system. This could uncover damage and leaks needing to be repaired if you decide to purchase the motor grader.

Check engine power
Confirm your engine has enough power for the jobs you're going to complete. If you need a larger motor grader with more horsepower that can handle tough jobs and cover lots of ground, you're going to want the bigger engine. You can find the horsepower by asking for the machine's specs, but you can also run an independent test if you want to make sure it runs at optimal power.

Daily Walk-Around Motor Grader Inspection Checklist

There are some tasks that operators should perform every day as part of your motor grader walk-around inspection. Consider the following checklist:

Circle drive: You will want to check out your machine's circle drive every day. Look for any leaks or indications of leakage. Identify any damage or loose components.

Cutting edge: The sharper the cutting edge is on your motor grader, the better it will move through the soil. Ensure that it is sharp and does not have any signs of damage, as this can impact your equipment's performance.

Blade linkage: Take a look at the blade linkage on your machine. Inspect for signs of excessive play or damage. Identify and address any loose or missing parts.

Tires: Check your tires for safety and performance reasons. If any tire pressure is low, add air before getting started on work for the day.

Hydraulic system: Your hydraulic system requires some extra attention. Check for leaks by both looking at the equipment and listening to it. Pay mind to loose connections and lines. You will also want to look at the hydraulic oil level.

Engine oil: Check your machine's engine oil level. Add more oil if necessary. Check on the oil level for your equipment's power shift transmission and pay attention to any leaks.

Fuel level: Check your fuel level. If it is low, consider adding fuel before getting started for the day.

Coolant level: Peek at your coolant level in your machine's radiator. And while you are there, you might want to check on other components, like hoses and fan belts. Take a look at the radiator cap and clamps as well. Make sure every part is present and secure.

Airflow system: Give your attention to the airflow system on your motor grader. Check the air restriction indicator as well as the air cleaner and its connections. Consider replacing the air filter if it is dirty. If your model has a dust cup, you'll want to empty it.

Air tanks: Take a peek at your air tank and drain the condensation. If your fuel sight bowl has condensation in it, you'll want to drain that too.

Belts: Checking your belts is incredibly important. Check both their condition and for tension problems. You wouldn't want your equipment to break down because of a simple part, like a fan belt.

Battery: When performing your daily walk-around inspection, don't forget to check on your machine's battery. Make sure connections are tight and have not corroded. Check on the electrolyte level. You may need to add water if necessary.

Electrical wire: Peek at electrical wiring and connection. Pay attention to insulation and be sure everything is clean and in place.

Safety devices: Before starting your machine, ensure every safety device is functioning properly.

Lights: Test your motor grader's lights and be sure they are working. Lights are an important feature for safety. Replace any broken bulbs promptly.

FAQ

Q: What is a motor grader?

A: A motor grader is a construction vehicle used to maintain unpaved roads and establish the final grades on construction projects. They are designed to create flat surfaces and can spread dirt and remove debris. They are best recognized for their long adjustable blade.

Q: What is grader mainly used for?

A: It is commonly called in names such as road grader, a blade, a maintainer and motor grader. Grader is used to prepare clean and level the land and spread the materials over the land as equally distributed as possible. Grader is used mainly for finishing, shaping and trimming.

Q: Where are motor graders used?

A: The grader, also known as motor grader or road grader, is described as heavy-duty machine designed with a long blade that is used in different industry sectors. Graders are most commonly used in civil construction, roadworks and on mining sites for creating smooth and flat surfaces.

Q: What are the application of motor graders?

A: Motor graders find various applications in the mining industry. They are used to build access roads to mining sites, level terrain for equipment setup, and maintain haul roads for safe transportation of extracted materials.

Q: What is the difference between a motor grader and a bulldozer?

A: Motor graders are excellent at large projects which need fine grading or small amounts of materials like soil or earth. If large amounts of heavy loads like rocks, sand or trees need to be moved on rough terrains, then a bulldozer is your best bet.

Q: What is the function of a motor grader?

A: Primarily, motor graders are designed to scrape and shift flat or angled substrate in order to form smooth, level surfaces. Sometimes, they're used to shift soil and earth into precise mounds. The blade on a motor grader can be used on construction sites, road works and farms.

Q: How many types of motor graders are there?

A: There are two types of categories graders can fall under: Rigid frame motor grader and Articulated frame motor grader.

Q: What is the useful life of motor grader?

A: The motor grader is similar to scrapers in that there is little risk to push it past its anticipated B50 component life, which is about 12,000 hours.

Q: In what applications are motor graders typically used?

A: Construction: Workers use a motor grader to level a surface before laying the foundation for a home, building or other structure. Road work: Streets, highways and parking lots wouldn't exist without motor graders. An operator uses this equipment to flatten and smooth a surface before laying asphalt.

Q: How do you control a motor grader?

A: Lift: Pull back to raise the left end of the blade.
Hold: Release lever. Blade will remain in selected position.
Lower: Push lever forward.

Famous Machinery Co., Ltd. is one of the leading motor grader manufacturers and suppliers in China. We warmly welcome you to buy discount motor grader for sale here from our factory. All machines are with high quality and competitive price. For more cheap products, contact us now.

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