What is a Grader?

Grader hire

Not quite sure why you need a grader for your next project? Knowing what a grader does and what type you need is important when planning out your project - from residential projects to road constructions. The name ‘grader’ alludes to what the machine does, which is levelling the ground to a certain grade in preparation for laying asphalt or concrete on top of the area. This construction machine can also be used for the removal of snow, debris and earthmoving based on the projects’ location and requirements.

Graders are almost always found on road construction, infrastructure projects and building developments, working the ground to an even level that is safe to build on. If the ground is not properly compacted and graded before construction works are undertaken the project’s structural integrity is at risk. This is why having an experienced grader operator is integral to the entire projects survival.

What is a grader used for?

Graders get to work after the heavier construction machinery - excavators or bulldozers - have finished their part of the job. They use a long bladed attachment to flatten surfaces, grade land, scarify layers, and compact roads to an easy gradient and give a finer finishing to the groundwork.

These days, people hire graders to complete jobs and projects such as:

  • Road building
  • Road maintenance
  • Spreading
  • Fine grading
  • Earthmoving
  • Clearing bushland and debris
  • Snow removal

Grader hire

Are there different types of graders?

Graders are also an easily recognisable earthmoving machine. They are characterised by their long structure and large blade between the front wheel axles and main part of the machine. This allows a larger span of movement and control for the grader operator, giving them a wider scope of work to be completed.

Motor graders are classified depending on the arrangement of their frame. There are two types of categories graders can fall under: Rigid frame motor grader and Articulated frame motor grader. Today, most graders manufactured are articulated frame graders. This is as they are more useful in smaller construction spaces where there is less room to move or turn around. Small motor graders are perfect for landscaping jobs, road maintenance and other tasks that need to be completed in a tight space, whereas large motor graders are typically used for larger scale projects, such as highways and motorway construction.

What are the types of grader blades?

Graders are able to change their blade, which is perfect when different blade sizes and types are needed for different jobs. Blades are attached under the frame with a ring that swivels vertically to adjust the angle of the blade, meaning that graders can work sideways on jobs like creating banks and ditches. Grader hire suppliers categorise their graders by blade width, from less than 10ft, 12ft, 14ft, 16ft and right up to 24ft.

When it comes to choosing what blade is right for your job, you should consider what type of surface or environment the grader will be working in. Scarifier blades are used on hard-packed surfaces, whereas dual-carbide planer blades are better for low-impact, highly abrasive jobs. A thicker blade is less susceptible to breakage, but means the penetration is less compared to a thinner edge. Different conditions and materials will influence how long the blade will last for, so check the ground conditions and discuss with the grader hire supplier so they can help you choose the right blade for the job.

Where can you hire a grader?

Whether it be a small or large scale construction project, our grader hire suppliers can complete a wide range of detailed earthworks including pad work and chamber. Our directory offers a huge range of qualified grader hire suppliers across Australia in Brisbane, DarwinMelbourne, Canberra, Sydney, Adelaide, Perth and rural areas. Offering a wide range of attachments, our suppliers will be able to accommodate to any job requirement and ensure that you get the most out of your grader hire!

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