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What Size Concrete Floor Grinder Do You Need?

The past few years have seen a $72 billion increase in property improvement work compared to a few years prior.

Yet, how many projects have gone unfinished or wasted because of errors?

Residential and commercial properties take a lot of money and energy when refurbishing. Concrete floors are a great example of an improvement project that amplifies the space and is money well-spent.

The right project at the best price means understanding a concrete floor grinder and the different sizes that will make your project a success.

Continue reading for our guide to the different sizes of concrete floor grinders and how to select the best choice.

 

 

Outlining Your Floor Project

Outlining Your Floor Project

Concrete floor grinders are useful for several different polishing or refurbishing jobs. Grinders can clean chemical spills or strong adhesives leftover from tile or carpeting. They can also even and smooth out disjointed floors or create a high-shine gloss for a sophisticated look.

It is a powerful machine when used correctly.

So many uses mean there a lot of different sizes of concrete floor grinders. Each project needs a different size to achieve the best result for your property.

Starting your work by outlining the concrete floor project you are undertaking is key to selecting the best-sized concrete floor grinder. The various aspects of the project will all affect your choice of machine.

Beginning with this clarity is crucial, so you must ask yourself some questions.

What is the goal of the work? Are you smoothing out a rough surface or removing spills and stains?

What is the square footage of the space you will work on? Is this a smaller job (under 1,000 square feet) or bigger (above 1,000 square feet)?

Are there a lot of edges and corners to clean in the space? Is it more of an open floor plan that needs work?

These machines can accomplish big and small projects, but your work can extend in length and frustration if you choose the wrong size at the start of the project. Answering each of these questions before you begin will make finding the best size grinder easy and keep you on your deadline. 

 

 

Picking the Right Size Concrete Floor Grinder

Now that you have outlined your project, picking the perfect size grinder becomes about finding which machine will accomplish your goals.

There are three main concrete floor grinder sizes to understand. Each has particular projects it is perfect for, so understanding all three is vital. 

 

The Hand-Held Option

The Hand-Held Option

Hand-held grinders are the smallest size concrete grinder out of all options. These compact machines tend to be used for edging the space and getting flush with the wall. They also tend to be the primary choice for getting hard-to-reach places with even strokes.

Hand-held machines take more manual labor than the other types of concrete floor grinders. You will be doing most of your project on your hands and knees with this one. This will extend your work and take more energy to maneuver around with equal and even pressure.

These grinders are perfect for smaller projects such as patching up an area on the floor, smoothing concrete counters, or completing a bathroom floor.

Popular sizes for hand-held grinders include 4-5 inches or 7-9 inches.

 

The Stand-up or Walk-Behind Option

The Stand-up or Walk-Behind Option

The walk-behind or stand-up grinders are one of the most popular for business or residential projects. These machines cover a much larger surface area than the hand-helds. They also take considerably less energy to operate, so you can complete your projects on time.

This concrete floor grinder comes in various sizes. What will work best depends upon your project's square footage. They can be as small as 1.5 feet and as large as 3 feet.

A small stand-up machine is perfect for small-scale residential projects, like a garage. You can use a medium-sized grinder for larger residential projects or commercial builds like an outside restaurant patio. You would use a larger walk-behind for higher square footage polishes and evening.

Stand up machines are a go-to for removing epoxy, glue, and paint from concrete floors.

 

The Ride-on Selection

The Ride-on Selection

Your final choice of concrete floor grinder sizes is the ride-on option. You bring a lot of power and mechanical torque when utilizing this option.

Ride-on grinders are the largest and most powerful of the three options. These are typically reserved for large-scale, commercial projects. You would use this option for grinding and polishing a warehouse, shopping mall, or complex.

One pass on a ride-on machine will evenly grind 3+ feet of surface area. 

 

 

RPMs and Power Ranges

RPMs and Power Ranges

The sizes of concrete floor grinders each come with different RPMs and power ranges that make them more or less powerful, depending on your project.

Grinders can be powered by electricity, gas, or propane. Larger machines, such as ride-on ones, need more power to run, so gas or propane is standard.

Diamond shoes are attached to discs of the concrete floor grinder. Some machines have one large plate with several discs attached (known as planetary). Some have several rotating discs that move from the force of gears (known as rotary).

All of the discs on the grinders move at different revolutions per minute or RPMs. A more powerful machine will have a higher RPM and be more aggressive in its grinding abilities.

A low RPM would be around 300 spins on average, while a high RPM would be about 1,300 spins.

You need to be careful about knowing the RPM for the size machine you are going for, as a lower or higher RPM will produce different results. Cleaning a spill at the top of the concrete would need a lower RPM so it doesn't grind too much concrete away. A deeper removal would benefit from a higher RPM.

 

 

Your Concrete Floor Grinder Buying Guide

The size of a concrete floor grinder should be based on your project specifications. The square footage and goal of residential or commercial property will guide you to choosing the best size.

Hand-helds, walk behinds, and ride-on machines bring different RPMs and power to grind and polish any scale project. Understanding these options is key to finding the best types of concrete floor grinders for your needs.

Do you know what your concrete floor requires? Browse through our inventory of floor grinders to find the best size.

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