Concrete Grinding: The Comprehensive Guide to Perfect Surfaces

Concrete Grinding: The Comprehensive Guide to Perfect Surfaces

Concrete grinding is a transformative process, turning rough and uneven surfaces into smooth, polished masterpieces. But what exactly does it entail? Let’s take a look into the world of grinding, its advantages, and the tools that make it all possible.

What Exactly is Concrete Grinding?

Grinding is a mechanical procedure where the top layer of concrete is refined using specialized equipment. This equipment, often fitted with abrasive diamond grains of different sizes, is designed to tackle different jobs. Whether you're smoothing out high spots or preparing a floor for a new finish, grinding is the method of choice.

Why Use a Concrete Grinder?

Concrete grinders are an excellent choice for a range of surface refinement tasks. They can smooth rough patches, eliminate surface stains, level out uneven areas, and provide a polished finish, making them perfect for enhancing surfaces for subsequent applications. Concrete grinders are especially beneficial for projects that demand a finer and more polished finish than scarifiers can offer. For example, when you aim to achieve a glossy surface or when you need to prepare a floor for decorative coatings or overlays, a concrete grinder is the go-to tool.

What Is The Advantage of a Concrete grinder  compared to a Concrete scarifier?

While both Grinding and Scarifying are used for surface preparation, they serve different purposes. Grinding aims to achieve a polished, smooth finish, making it ideal for aesthetic purposes. On the other hand, scarifying is more aggressive, creating a rough texture for coatings. If you’re looking for a sleek, refined look, grinding is your best option.


Technically speaking, Grinders and Scarifiers differ significantly in their operational mechanisms and the tools they employ. A grinder uses rotating discs, often embedded with diamond segments or polishing pads. The segments are interchangeable, allowing for varying levels of grit to achieve different degrees of smoothness. The grinder’s segments spin in a plane parallel to the ground, ensuring a consistent and even abrasion. In contrast, a scarifier operates with a rotating drum equipped with flails or cutting wheels, typically made of tungsten carbide or steel. As this drum rotates, the cutters make forceful impacts on the surface, chipping away the concrete. While both machines are pivotal in surface preparation, their distinct operational designs and tooling make them suitable for varied technical applications. 

PCD Segmets and Segments with various Grits and a Grinding working plate ready to be installed on a Floor Grinder for CONCRETE GRINDING and more

PCD Segmets and Diamond Segments with various Grits.

Tungsten, steel and other cutters for ES-200 Scarifying and Milling machine

For Scarifying Cutter Wheels are used. 

 Fields of Application

The Application can variate by the size of the Machine and the Tools available.


  • Removing coatings, glue, adhesives.
  • Roughening for new coatings.
  • Cleaning dirty surfaces, build-ups, concrete, asphalt or even wood panels
  • Abrading latex, mastics, sealers, adhesives.
  • Smoothing rough concrete surfaces, rain marks.
  • Leveling high spots on concrete.
  • Texturing slippery floors.

Smoothening of concrete surface.

Concrete Grinding: Removal of thin coating. Picture from THE COMPREHENSIVE GUIDE TO PERFECT SURFACES

Removal of thin coating.


The machine’s size, weight, and working width play a significant role in determining its effectiveness and efficiency. Heavier grinders offer stability and can tackle more demanding jobs, translating to time efficiency. However, their weight might pose transportation challenges. Lighter grinders, on the flip side, are more portable and maneuverable but may not be cut out for intensive grinding tasks. Yet, their adaptability is enhanced by a broad spectrum of available accessories. The working width is another crucial factor; a broader width means more surface area covered in a single pass, making it perfect for expansive projects. But for precision work in confined areas, a narrower working width is preferable. Thus, gauging these aspects is vital to ensure you pick the machine that aligns perfectly with your project’s demands and the workspace.


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How To Use a Concrete Grinding machine?

Using a Grinding machine requires precision and expertise. First, determine the hardness of the concrete to select the right diamond grains. Start with a lower grit for more aggressive grinding and move to higher grits for a finer finish. Ensure the machine is set up with the appropriate tooling, and always maintain control, making multiple passes for a consistent result. Remember, the amount of concrete a grinder can remove depends on the tooling and the amount of time spent on the surface.

How Much Can a Concrete Grinder Remove?

The capability of a concrete grinder in terms of material removal largely depends on several factors, including the type of grinder, the tooling used and the concrete’s hardness. Typically, a standard concrete grinder can remove up to 1.5 mm of the surface in a single pass. However, with more aggressive tooling or grinding discs embedded with coarse diamond segment grains, it’s possible to achieve deeper cuts, sometimes even up to 3 mm inch or more. 

Standard Tools: From Diamond Segments to Polishing Pads

Selecting the right tool is paramount in Grinding. Diamond-Segments, with their sharp edges, are the preferred choice. Their size and grit play a pivotal role in determining the finish. For instance, a lower grit diamond will be more aggressive, and suitable for jobs requiring more material removal. When used with so-called Polycrystalline Diamond (PCD) segments a  Concrete Grinder removes easily high spots and is the perfect tool to achieve higher removal speed. On the other hand Polishing pads are a good idea when used to achieve that glossy, mirror-like finish.

Special accessories

  • ROLLER-TEC System: Designed for efficient and precise removal of markings such as parking lines and pedestrian strips, this system ensures floor-friendly yet thorough cleaning. Beyond that, it excels at stripping away coatings, paint, and stubborn dirt deposits, offering fine and clean milling capabilities.
  • FLIPAIR ASSISTANCE SYSTEM: This innovative system boosts the exhaust air speed, directing sanding dust straight to an industrial vacuum. The enhanced exhaust air flow not only ensures efficient dust collection but also minimizes the risk of dust particles escaping sideways.
  • Ceramic Grinding Pads: Engineered for optimal performance, these pads minimize heat development, thereby extending tool life. They are especially effective on synthetic surfaces, delivering superior results.
  Each of these specialized attachments offers unique advantages, enhancing the machine’s versatility and efficiency in tackling a range of tasks.
Rollertec 2 for Marking removal with a concrete floor grinding Machine

ROLLER-TEC bushhammering tools ideal for removing markings.

Accelerates the dust exhaust air to the Industrial Vac.
Ceramic Pads for Concrete Grinding

Ceramic Tool for easy removal of Coatings and Paint without heat development.


Concrete grinding is more than just a procedure; it’s an art that requires the right tools, expertise, and precision. Whether you’re renovating a commercial space or your home, understanding the nuances of grinding ensures a durable and aesthetically pleasing result. With advancements in technology and the right expertise, achieving the perfect ground concrete surface is possible and a must.