10 Things to Consider When Buying Grader Blades Bits

Matching your grader blade with your operating conditions and desired grading outcomes will have a significant impact on productivity, grade quality, and the stresses placed on your machine.

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When selecting your grader blade, ensure you consider its length, width, thickness, hardness, whether it should be curved or flat, and whether it should be serrated.

Grader Blade Length

The length of your grader blade should be determined by the size and configuration of the machine it is being fitted to. Most graders require two grader blades, with six, seven or eight-foot blades being the most common.

Grader Blade Width

The width of your grader blade is a key determinant of how well it wears. The standard width is six inches, however eight inches is also a popular width for those seeking increased wear life. There are also less common 10-inch grader blades, as well as the option to produce custom widths for those with unique requirements.

Grader Blade Thickness

Like width, the thickness of your grader blade is a key wear property. The standard grader blade thickness is 5/8-inch, while 3/4-inch and 1-inch thicknesses are also available if your operating conditions require extra wear material.

However, consider that increased blade thickness will also increase blade weight, make ground penetration more difficult and place unnecessary stresses on your machine’s drivetrain and frame components, so it is important not to choose a thicker blade that an application requires.

Lastly, thinner, curved blades are best suited for a final trim.

Curved or Flat Grader Blades

• Curved grader blades are best used for applications requiring a penetration and rolling action and are best suited for fine grading and finishing work where a high degree of accuracy and quality are required.
• Flat grader blades are best suited to heavy road maintenance where the shaping of the road surface is not critical. Their strength and extra wear material make them the preferred option for applications where abrasion and impact resistance are required.

Serrated Grader Blades

Designed to penetrate packed gravel, serrated grader blades deliver better penetration than a continuous edge thanks to increased pressure-per-inch of edge contact. Serrated blades are available in both curved and flat edge styles.

Grader Blade Hardness

A harder grader blade will generally offer better wear protection properties. However, consider that harder grader blades may be more brittle and susceptible to cracking if you hit a large rock during grading. If this occurs the grader blade must be replaced, so it is important to strike a balance between hardness and impact resistance, and choose a supplier who can deliver a grader blade with both.

The two most common methods of hardening grader blades are:

• Heat treated grader blades which offer through-hardness of 420-512 Brinell
• Black, high carbon steel grader blades which offer through-hardness up to 320 Brinell

For those seeking extreme wear protection, hardness and impact resistance, Swedish-made Sharq Grader Blades offer through-hardness of 550 – 600 Brinell and excellent impact resistance, as well as a number of other features and benefits, discussed below.

Sharq Grader Blades

Swedish-made Sharq grader blades are thinner and harder than conventional grader blades which means they require less downwards pressure. The result is an increased lifespan of up to 200 per cent, improved operator comfort and reduced wear on all parts of the machine. This means more kilometres of grading per day, reduced maintenance costs and up to 20 per cent fuel savings.

Sharq grader blades are fitted to an adaptor plate attached to (and protecting) the moldboard. They are easy to adjust to help prevent blades from crowning, and they maintain a straight edge so throwaway is very low – less than 20 per cent compared to conventional blades.

Benefits of Using the Right Grader Blade

By correctly matching the features of your grader blade to your machine and operating conditions, you will realise significant productivity benefits in numerous areas.

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• Blade lifespan and reduced maintenance: With the right grader blade installed, you can expect to see increased service life of your blades. This translates to savings in replacement parts, reduced machinery downtime and associated labour and maintenance costs.
• Productivity and running costs: A fit-for-purpose grader blade will perform more efficiently, enabling you to run in higher gear with lower RPMs. This results in reduced wear on your machine – from the drivetrain to the tyres, reduced fuel consumption and emissions, and an improved operator environment with less cabin vibration.

The Cost of Inferior or Incorrect Grader Blades

Conversely, the cost of choosing an inferior or incorrect grader blade sees the loss of all the above benefits, plus potentially incorrect tolerances creating issues with grader blade fit and damage to the moldboard which can be costly to repair.

Buying a used motor grader may be one of the wisest decisions you can make as a company. They usually come with lower initial investment costs and provide all the power you need to complete your projects. Since these motor graders have already been used, companies may be a bit wary about purchasing them. This reluctance is especially true when they don't know what to look for to make sure they're getting a high-quality motor grader.

To ensure you get the best used motor graders on the market, you should be aware of used motor grader inspection tips and different factors you need to account for as you select a used piece of construction equipment. Check out this used motor grader buying guide to ensure you make a wise decision the next time you purchase heavy-duty machinery.

With all the advantages of purchasing a used motor grader, you'll likely want to know what to look for when considering this piece of equipment. Below you can find out more about what to look for when buying a used motor grader:

1. What Type of Job Will You Need It For?

The first step to purchasing a motor grader is knowing the types of projects you're planning to use it to complete. This can help you determine the exact specifications you need from your motor grader before putting down the money to invest in it.

After all, you don't want to purchase a motor grader that doesn't have enough power to handle your hardest job, or that's going to be too small to make it through your project in an efficient manner. Consider past projects or the types of projects you hope to take on in the future to narrow down your selection to the most appropriate options.

2. What Size Do You Need?

Size is one of the most important qualities of motor graders. The size of a motor grader directly relates to the capacity and maneuverability of your equipment. For instance, if you're working in a tighter area, you need a smaller motor grader that can easily navigate the space and make it around corners. In larger areas, smaller motor graders aren't ideal since they have smaller blades that may require you to take longer to complete jobs.

Larger motor graders are ideal for projects where you have to cover lots of ground. Since they have larger blades, they're very efficient at completing bigger jobs at a faster pace.

3. What Attachments Will You Need?

One of the things to look for when buying a used motor grader is the types of attachments it can use. You want to anticipate the attachments you'll need for your projects and ensure the motor grader you choose will be compatible. Some motor graders may come packaged with the attachments, so it's a good idea to know what you want to get the best deal.

4. What Are the Maintenance Costs?

Through inspections and reviewing the motor grader's maintenance history, you should try to get a sense of what your future maintenance costs are going to be. Motor graders have to handle tough jobs daily, so they'll need to be maintained, no matter how good a condition you find them in. By knowing if they've been damaged and reviewing their maintenance history, you can get a sense of your future maintenance costs and see if they fit your budget.

Besides looking at more general criteria to evaluate motor graders, you should inspect specific areas of the motor graders. Conducting a detailed inspection can help you make sure the motor grader is worth purchasing and won't end up costing you more money in immediate maintenance costs.

Below you can find the top tips for buying a used motor grader, helping you know what to inspect before you invest. There are seven things to check before buying a used motor grader.

1. 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.

Start by looking at the surface to see if it has any places where there's uneven wear. If uneven wear is present, the circle may be improperly aligned, leading to damage to the pinion gear teeth. Shims can sometimes be used to ensure the circle remains properly aligned, especially if the circle has some areas that are worn down. If you notice shims, you can start the motor grader and see if its circle can go through its full range motion without play.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

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