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How to Choose the Right Concrete Floor Grinder

Updated February 2022

Concrete is a viral flooring material for many reasons. It's durable, waterproof, and can be customized to fit any design.

Concrete floor grinders are a great way to get rid of the bumps and dips in your concrete where they have been caused by people walking across them over time. 

A grinder will remove the high points from the surface with a rotating drum covered with diamond-embedded teeth. There are many different grinders out there, so it can be difficult to figure out which one is best for you.

Some people think that the cheapest grinder is the best option, but this isn't always true. This blog post will help you choose the right one for your needs.  

How Does A Concrete Floor Grinder Work?

A floor grinder is basically a powerful rotating disc that can connect to an electric drill.

The machine works by removing the top layer of the concrete or tiled surface with diamond-tipped cutting disks, to expose the substrate beneath.

Concrete grinding creates a very rough surface, and it’s fine if you choose to leave it like this for increased slip resistance. Or, you can follow up with a floor sander machine to make it smooth.

There are many concrete floor grinders on the market, but most are either too powerful or too weak for the average user.

If you choose an industrial grinder that is way too strong, it will take away all the substrate and leave the floor with a thin coat.

What Is A Concrete Floor Grinder Used For?

A concrete floor grinder is equipment used for grinding purposes. The most common use of the concrete grinder is to provide smoothness on the surface of a concrete slab or any other concrete floor to help provide slip resistance.

This means that users will not find it difficult to walk on the floor in wet conditions. This is very important, especially if your business is a restaurant, as you would want all your employees and customers to have a safe experience.

In addition to this benefit, using equipment such as a concrete grinder can also help prolong the floor's life.

The edger grinder, which looks like an upright disc, can get rid of bumps around obstacles such as pipes and columns.

The concrete grinder, however, is not only used for commercial purposes. It can also be utilized anywhere, such as in homes and industrial jobs, to grind the concrete floor surfaces.

 

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What Types Of Concrete Floor Grinders Are There? 

The different types of concrete floor surface grinders are as follows:     

Edger Grinder

The edger grinder is a very versatile tool that can be used for grinding purposes, not just on floor surfaces but also on walls and ceilings, as well as to produce beveled edges.

This equipment is available in different sizes with various horsepower depending upon the size of your project, making it one of the most expensive units.

Corner Grinder

On the other hand, the corner grinder is designed specifically to handle all those tough edges and corners as well as to remove paint from walls. It can also be used to grind down door frames.

Roller Track Grinder

As the name implies, the roller track grinder has rollers on its base that helps you move the equipment.

Moreover, it is equipped with a direct belt drive, which means you can adjust its speed depending on the work. This type of concrete floor grinder is less expensive compared to other types available in the market today.

Tile And Stone Floor Grinder

The tile and stone floor grinder, as the name suggests, is used for grinding tiles and stones. This unit is designed with a small base to help get into corners as much as possible.

It can also be used for grinding marble or any other type of stone surface.

Marble Floor Grinder

The marble floor grinder works the same way the tile and stone grinder, but this one is specifically designed for marbles and stones. This machine is lighter but more expensive than the tile and stone grinder.

Oscillating Floor Machine

On the other hand, the oscillating floor machine is capable of removing coatings from various surfaces such as wood.

In addition to this, it can also be used for polishing purposes. The concrete burnishing machine that comes with a diamond head can also help remove coatings from surfaces.       

Diamond Grinder

The diamond grinder is considered the most expensive among all concrete floor grinders that exist today.         

This unit can be utilized more on harder surfaces such as marble, travertine, granite, and terrazzo. There are also different diamond grinders available today, with the most common being the barrel head, round table, and flat table.

Factors To Consider When Choosing The Right Concrete Floor Grinder

Concrete floor grinders are versatile tools commonly used for coarse finishing on concrete floors. Concrete floor grinders can be used on any hard surface, not just concrete.

They're also known as "floor prep" machines because they remove the top layer of surface contaminants to prepare the substrate for sealant or coating at a construction site, parking lot, or retail store.

Here are some factors to consider when choosing the right floor grinder for the job.

1. Budget

The price range for floor grinders typically starts at $200 and can go up to $20,000 or more. It's imperative to set a budget for the type of machine you plan on using.

Decide whether it will be used for personal or business use. Floor grinding machines can handle chipping away cement, stripping paint, and removing rust and tile adhesive

2. Grinding Heads

Various types of grinding heads come with different floor grinders. Some models will be able to pull out so you can attach the grinder head to the bottom of the machine for other types of surfaces. The type of blades should fit your needs, as different blades can be used for concrete, stone, and tile.

3. GFCI Protection

A GFCI breaker prevents a power tool from becoming a shock hazard. The breaker has the ability to immediately shut down the flow of electricity if it detects a difference in electrical resistance or current leakage. You'll need this on a machine if it's to be used near water.

If you are working on wood, tile, stone, or other surfaces where the grinder will come in contact with electrical cords, you'll want to make sure it has GFCI protection.

4. Softer Surfaces

Smaller machines with less power are more effective on softer surfaces, such as hardwoods or laminates.

5. Corded or Cordless

Corded machines need to be plugged into an electrical outlet and allow continuous use without running down the battery.

If you're working in an area with no electricity, go for cordless units which operate on either lithium-ion or nickel-cadmium battery packs.

6. Wet or Dry Cartridges

Corded units are the only types that allow for a wet cartridge, which is good if you work in wet or moist conditions. If your grinding unit is cordless, however, it will probably be able to handle dry cartridges as well.

7. Noise Reduction

When grinding hard surfaces, noise can be a big factor. Look for units with built-in sound-reducing features designed to help muffle the machine's noises.

8. Spindle Lock

Some models come with spindle locks that allow you to remove the blade and attach it to the bottom of the floor grinder so you can use it to strip paint and chip away cement and other surfaces.

9. Work Light

Some models come with an LED light that can give you better visibility of your work surface.

10. On/Off Stomp Switch

The stomp switch or trigger controls should allow you to turn on the machine without having to hold it down for continuous on-demand use.

This is a great feature while working on concrete, as you'll likely have gloves or other protective gear that would prohibit you from holding down the trigger.

11. Tool-less Blade Change

If your blades need to be replaced often, look for a model with a tool-less blade change feature that lets you remove the blade with a twist of your hand.

12. Padded Handles

Padded handles not only look nice, but they're also more comfortable and more slip-resistant than bare metal. 

13. Concrete/Grind Finish

Different types of paint or concrete finishes will call for different finishing grits and blades. The type of finish on your concrete will determine the blade and finishing grit you'll need for the best results.

14. Shipping Mode

Many models come with a shipping mode which keeps the machine from becoming active during transport and storage.

15. Warranty

Look for a warranty that includes both parts and labor, as well as a good return policy to ensure your satisfaction with the machine.

Conclusion

Choosing the right concrete floor grinder can be a daunting task. There are so many brands and models on the market that it is difficult to decide which one will work best for your needs. 

A floor grinding machine includes surface preparation when working on a concrete surface. The concrete grinders are helpful in all situations. You can use a planetary grinder for diamond tooling as the best concrete floor grinder.

This blog post will give you all of the information you need to make an informed decision, as well as some helpful tips about choosing a concrete floor grinder for your project!

 

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