Concrete Mixer for Sale: How to Choose the Right One

Finding the right concrete mixer for sale is less about buying the biggest machine you can afford and more about matching the mixer to the amount and type of concrete you actually need to produce. A small patio, fence posts, walkway, or shed foundation can often be handled with a compact mixer, while a large driveway or slab may justify a larger machine—or make ready-mix delivery the smarter choice.

The mistake many first-time buyers make is focusing on drum size or price alone. A mixer needs enough usable capacity for your batches, enough power for the mix, and a design that makes sense for your job site. You also need to think about where you’ll store it, how you’ll move it, and whether buying makes more sense than renting.

This guide breaks down those decisions so you can compare a new or used concrete mixer for sale with a much better idea of what you’re actually getting.

What Size Concrete Mixer Do You Need?

Start with your batch size, not the size of the drum.

A concrete mixer’s advertised capacity refers to the volume of the drum, but you generally can’t fill the drum completely and expect a good batch. The ingredients need room to tumble and mix properly. A mixer with a 9-cubic-foot drum, for example, will produce considerably less than 9 cubic feet of finished concrete in a practical batch.

For a rough starting point:

Project	Mixer Size to Consider
Small repairs and a few bags	Hand mixing or compact mixer
Fence posts and small projects	2–3.5 cubic feet
Walkways and small patios	4–6 cubic feet
Shed foundations and larger DIY pours	6–8 cubic feet
Very large slabs or driveways	8+ cubic feet or ready-mix delivery

These aren’t rigid rules. The right choice depends on the number of batches, the space available, the concrete mix you’re using, and how quickly you need to finish.

Don’t Confuse Drum Capacity With Finished Concrete

This is one of the easiest details to overlook when shopping for a concrete mixer for sale.

A mixer has a maximum drum volume, but its practical working capacity is lower. If you try to fill it to the brim, the ingredients won’t have enough room to move through the drum. The result can be poorly mixed concrete and unnecessary strain on the machine.

A smaller mixer used within its working capacity can produce better results than a large mixer that is constantly overloaded.

How Much Concrete Are You Planning to Mix?

Think about your project in terms of total concrete and batches.

For a few small repairs or isolated post holes, buying a mixer may not make financial sense at all. A bucket and appropriate mixing paddle can be enough for a limited amount of material.

Once you’re dealing with repeated batches, however, a mixer becomes much more attractive. Mixing ten or fifteen bags manually is tiring, and the bigger problem isn’t just the physical work. Maintaining a consistent mix becomes harder when every batch is prepared by hand.

For example, imagine you’re building a small walkway. If the project requires multiple batches, you want each batch to have roughly the same proportions and mixing time. A drum mixer makes that repeatability much easier.

For a large driveway or substantial slab, don’t automatically assume that a huge mixer is the answer. Ready-mix concrete delivered by truck can sometimes be the more practical option because you avoid spending hours producing batch after batch on site.

Electric vs. Gas Concrete Mixers

The two most common choices for portable mixers are electric and gas-powered models. Neither is automatically better. The job site usually determines which makes sense.

Electric Concrete Mixers

Electric mixers are popular with homeowners because they’re relatively simple to operate and don’t require fuel.

They make sense when:

You have dependable electrical power nearby.
The mixer will be used around a home, garage, or workshop.
You prefer less engine maintenance.
Noise is a concern.
You don’t want to store gasoline.

The main limitation is access to electricity. A long extension cord can introduce voltage-drop and safety issues, particularly with higher-powered equipment. You should follow the manufacturer’s requirements for the cord and electrical supply rather than simply using whatever extension cord happens to be available.

For a backyard project with a suitable outlet close by, an electric mixer can be a very convenient choice.

Gas-Powered Concrete Mixers

Gas mixers are useful when your project is far from an electrical outlet.

They’re particularly practical for:

Remote construction areas
Large yards
Farm and rural projects
Jobs where moving an extension cord is inconvenient
Frequent outdoor use

The trade-off is more maintenance, fuel requirements, noise, and generally greater weight.

If you expect to use the mixer in different locations, a gas-powered towable model may be worth considering. If all your work is close to your house, the simplicity of electric power can outweigh the flexibility of gas.

Concrete Mixer vs. Mortar Mixer: Don’t Buy the Wrong Machine

A concrete mixer and a mortar mixer aren’t interchangeable for every job.

Concrete contains aggregate such as gravel, while mortar is primarily a mixture designed for masonry work. Mortar mixers are built around that different material and mixing requirement.

If you’re pouring slabs, footings, walkways, or similar concrete work, look for a machine designed specifically for concrete.

If your project involves brick, block, stone veneer, or other masonry applications, a mortar mixer may be the better tool.

This distinction matters because buying a machine based only on the word “mixer” in the listing can leave you with equipment that isn’t suited to your material.

New or Used: Which Concrete Mixer for Sale Is Better?

A new mixer gives you the most predictable buying experience. You get a machine with no unknown operating history and, depending on the seller and manufacturer, a warranty.

A used mixer can be much cheaper, though, and may make more sense for a homeowner who only needs it for occasional projects.

Advantages of Buying New

Warranty coverage may be available.
Less concern about hidden damage.
New drums and components should have minimal wear.
You know the machine’s history.
Replacement parts and documentation may be easier to obtain.

Advantages of Buying Used

Lower purchase price
Potentially better value for occasional DIY work
Commercial-quality equipment can sometimes become affordable secondhand
You may be able to resell it after completing your project

The important point is not simply “new is better” or “used is cheaper.” Compare the total cost.

A $300 used mixer that needs $150 in parts isn’t really a $300 purchase. Likewise, a $700 new mixer may be poor value if you only need it for one small project and could rent an appropriate machine for considerably less.

What to Inspect Before Buying a Used Mixer

If you’re looking at a used concrete mixer for sale, don’t buy it based on photographs alone.

Whenever possible, inspect and operate the machine before paying.

1. Check the Drum

Look inside the drum for hardened concrete.

A little residue is normal on an older mixer. Large chunks of hardened concrete are more concerning because they reduce usable capacity and can interfere with proper mixing.

Also inspect the drum for serious corrosion, cracks, or obvious damage.

2. Run the Motor

Ask the seller to start the machine.

Listen for unusual grinding, squealing, knocking, or inconsistent operation. The drum should rotate smoothly without excessive wobbling.

Don’t be afraid to let it run for several minutes. A machine that sounds fine for ten seconds may behave differently after operating continuously.

3. Inspect the Frame and Welds

Look closely at welds and structural joints.

Pay particular attention to areas carrying heavy loads, including the frame, drum supports, wheels, and axle assembly on towable models.

Surface rust isn’t automatically a deal breaker. Cracked metal or badly weakened structural components are much more serious.

4. Examine Tires and Wheels

For a towable mixer, inspect the tires carefully.

Look for cracking, excessive wear, and signs of dry rot. Check the wheels and make sure the trailer components appear sound.

A mixer can be mechanically excellent and still be inconvenient—or unsafe to tow—if its running gear has been neglected.

5. Ask About Its History

Ask how old the mixer is, how often it was used, and why it’s being sold.

A homeowner selling a mixer after completing a patio may have a completely different maintenance history from a machine that spent years on a busy construction site.

The seller’s explanation isn’t proof of condition, but it gives you useful context.

Features Worth Paying Attention To

Once you’ve narrowed down the capacity and power source, look at the practical details.

Drum Material

Steel drums are common and durable, but they need proper cleaning and storage to avoid corrosion.

Drum Rotation and Controls

Controls should be easy to reach and the drum should rotate consistently. Simple controls are often preferable to unnecessary complexity on a machine intended for occasional DIY use.

Wheels and Portability

Think about where you’ll actually use the mixer.

A machine that’s easy to roll across a flat driveway may be much harder to move through soft soil or over uneven ground. Check the wheel design and overall weight before assuming a model is portable.

Towable Design

If you’ll move the mixer between properties or around a larger work site, a towable model may save significant effort.

However, don’t buy a towable mixer simply because it looks more professional. If your projects are all around your house, a compact portable model may be easier to handle and store.

How to Keep Your Concrete Mixer Working Longer

Concrete doesn’t become easier to remove after it hardens.

The most useful maintenance habit is also the simplest: clean the drum immediately after use.

Rinse the drum before leftover concrete has time to set. Use a suitable brush to remove material from the interior, following the manufacturer’s cleaning recommendations.

Waiting until the next day can turn a quick cleanup into a difficult scraping job.

You should also periodically inspect:

Belts
Gears
Drum supports
Paddles or mixing components
Guards
Wheels and tires
Electrical connections on electric models

For gas-powered equipment, follow the engine manufacturer’s recommendations for fuel, oil, storage, and seasonal maintenance.

Store the mixer somewhere protected from unnecessary exposure to rain and moisture. Good storage is particularly important for equipment with steel components.

Common Concrete Mixer Buying Mistakes

Buying Too Large

Bigger isn’t always better. A large mixer can be heavier, harder to move, harder to store, and more expensive than necessary.

Choose capacity based on your realistic batch requirements.

Buying Too Small

The opposite mistake is equally frustrating. If you’re mixing large quantities repeatedly, a tiny mixer can turn a manageable project into an exhausting series of batches.

Consider both the size of one batch and the number of batches you’ll need.

Ignoring Power Requirements

Don’t assume every electric mixer can plug into any convenient outlet. Check the manufacturer’s voltage, amperage, and extension-cord requirements before buying.

Forgetting Transportation

A mixer may look compact at a dealer or in a listing photograph but be surprisingly awkward to load into a vehicle.

Measure your available storage and transportation space before purchasing.

Buying Used Without Testing It

Never assume a low price means a good deal. If possible, see the mixer running before handing over your money.

Overloading the Drum

Overfilling reduces the space available for the materials to tumble and can lead to poor mixing. Follow the manufacturer’s recommended working capacity instead of treating the advertised drum volume as the amount you should load.

Should You Rent or Buy a Concrete Mixer?

For a one-time project, renting is often worth considering.

Rental avoids:

Long-term storage
Maintenance
Resale
Upfront purchase cost

Buying becomes more attractive when you’ll use the machine repeatedly.

Think about your next few projects rather than only today’s job. If you’re planning a patio now, a fence later, and additional concrete work afterward, ownership may make more sense.

On the other hand, if this is your first and only concrete project, renting can be the simpler choice.

The best comparison is:

Purchase price + expected repairs + storage + maintenance − resale value

versus

Rental cost × number of days you’ll need the equipment

You should also consider your time. Picking up, returning, and transporting a rental has its own inconvenience.

Where to Look for a Concrete Mixer for Sale

You have several options when shopping.

Home Improvement Stores

Large home improvement retailers are useful for new homeowner-grade mixers. You can compare specifications, warranty information, and return policies.

Online Marketplaces

Local marketplaces can be a good source of used mixers. The main advantage is price, but inspection becomes even more important.

Search listings using terms such as:

Concrete mixer
Cement mixer
Portable concrete mixer
Electric concrete mixer
Towable concrete mixer
Used concrete mixer

Remember that sellers sometimes use “cement mixer” and “concrete mixer” interchangeably in listings, even though concrete and cement aren’t technically the same thing.

Equipment Dealers

Equipment dealers are worth considering when you need a heavier-duty machine or towable commercial equipment.

They may also be a better source when parts availability and service support matter more than finding the absolute lowest purchase price.

A Simple Way to Choose the Right Mixer

If you’re still unsure which concrete mixer for sale to choose, work through these questions in order:

1. What am I mixing?
Concrete, mortar, stucco, or another material?

2. How much do I need per batch?
Estimate the amount of finished material and leave room for proper mixing.

3. How many batches will I make?
A small mixer may work for one batch but become frustrating if you need dozens.

4. Do I have suitable electricity?
If yes, electric may be convenient. If not, consider gas.

5. How will I move it?
Check weight, wheels, and whether towing is necessary.

6. Where will I store it?
Measure the available space before buying.

7. How often will I use it?
Frequent projects favor ownership; one small job may favor rental.

8. Am I buying used?
If so, inspect the drum, motor, frame, wheels, and overall operation before paying.

This approach is much more reliable than starting with a price filter and choosing whichever machine appears first.

Final Buying Advice

The best concrete mixer for sale isn’t necessarily the cheapest model or the largest machine. It’s the one that fits your actual workload.

Start by calculating how much concrete your project requires. Then choose a practical drum size, decide whether electric or gas power suits the job site, and consider how you’ll transport and store the machine.

If you’re buying used, inspect it carefully and run it before paying. If you’re only completing one small project, compare the purchase price with local rental costs before committing to ownership.

A little planning at the buying stage can save you from the two most common problems: struggling through dozens of undersized batches or ending up with an oversized machine that spends most of its life taking up space. Choose according to the work you actually expect to do, and your mixer will be a useful tool rather than another piece of equipment you regret buying.

How many bags of concrete do I need a mixer for?

There isn’t a single number that makes a mixer necessary. For a very small number of bags, hand mixing may be practical. As the number of bags and batches increases, a concrete mixer can save substantial physical effort and make it easier to produce consistent batches.

The type of bag and the final volume you need also matter, so calculate the project’s concrete requirement rather than choosing a mixer based only on bag count.

What size concrete mixer is best for a patio?

For many small residential patio projects, a mixer in the 4- to 6-cubic-foot range can be a practical starting point. The exact size depends on the patio’s dimensions, concrete thickness, access to the work area, and how many batches you’re prepared to make.

For a particularly large patio, compare the total labor and number of batches against the cost of ready-mix delivery.

Is it cheaper to buy or rent a concrete mixer?

It depends on how often you’ll use it.

Renting usually makes more sense for a one-off project because you don’t have to pay for long-term storage or maintenance. Buying can make more sense if you have several concrete projects planned or can find a reliable used mixer at a good price.

Always compare the complete ownership cost rather than just the purchase price.

How long can a concrete mixer last?

A well-maintained mixer can provide many years of service, but lifespan varies considerably with construction quality, frequency of use, cleaning, storage, and maintenance.

A homeowner’s mixer used occasionally may experience far less wear than a commercial machine operating every day.

Regular cleaning and prompt attention to worn components can make a major difference.

Can I use a concrete mixer for mortar?

Not necessarily. Concrete and mortar have different material compositions and mixing requirements.

If your project is primarily brick, block, or masonry work, check whether a dedicated mortar mixer is more appropriate. Always follow the equipment manufacturer’s instructions regarding approved materials.

Are electric concrete mixers good for homeowners?

Yes, electric mixers can be a convenient choice for many homeowners, especially when reliable electrical power is available.

They’re generally attractive for residential work because you don’t have to deal with gasoline or engine maintenance. However, larger projects or remote locations may make a gas-powered machine more practical.

What should I check when buying a used concrete mixer?

At minimum, inspect the drum for excessive hardened concrete and corrosion, run the motor, listen for unusual noises, check the drum’s rotation, inspect the frame and welds, and examine wheels and tires on towable models.

If possible, test the machine under operation before buying it.

Is a 9-cubic-foot concrete mixer really able to mix 9 cubic feet?

The drum’s advertised capacity doesn’t necessarily equal the amount of finished concrete you should produce in one batch. A mixer needs adequate room for the ingredients to tumble and combine.

Always check the manufacturer’s stated mixing or working capacity rather than assuming the total drum volume is the recommended batch size.