Concrete Mixer for Sale: What to Know Before You Buy (2026)
If you’re browsing listings for a concrete mixer for sale, you’re probably staring down a project bigger than a bucket and a hoe can handle. Whether it’s a new patio, a fence line of post holes, or a driveway repair, the right mixer saves your back and gives you a more consistent pour. This guide walks through sizing, types, new versus used, and where to actually find one, so you buy the right machine the first time instead of returning it.
What Should You Look for in a Concrete Mixer?
For most homeowner projects, a 3.5 to 6 cubic foot electric mixer with a steel drum covers everything from fence posts to a small patio slab. If you’re doing multiple pours a year or working without easy power access, step up to a gas-powered towable model in the 6 to 9 cubic foot range. Anything larger than that usually makes more sense to rent than own.
How Much Concrete Are You Actually Mixing?
Before you look at a single mixer, figure out your batch size, because that number decides everything else. A drum’s total volume and its usable batch capacity aren’t the same thing: a 9 cubic foot mixer typically only yields about 6 cubic feet of finished concrete per batch, since the drum needs headspace to tumble the mix properly.
Here’s roughly how projects break down:
- A few bags (patching, planters, small repairs): hand-mix with a bucket and a drill paddle, no mixer needed.
- 6 to 10 bags (stepping stones, a small countertop, post holes): a compact 2 to 3.5 cubic foot mixer handles this easily.
- 10+ bags (a walkway, a small patio, a shed foundation): look for a 4 to 6 cubic foot mixer.
- Large pours (a driveway, a room-sized slab): 8 cubic feet or more, or seriously consider ordering ready-mix concrete instead.
Overloading a drum past about 80% capacity is the single biggest mistake first-time buyers make. It leaves no room for the aggregate to cascade and mix, and you end up with a weak, uneven batch no matter how good the machine is.
Electric, Gas, or Manual: Which Type Fits Your Project
Concrete mixers split into three broad categories, and picking the wrong one is a common regret among first-time buyers.
Electric drum mixers are the default for homeowners. They’re quiet, need no fuel, and a 2 HP electric motor can do the work of a 10 HP gas engine because it doesn’t lose torque the same way. The catch is you need power at the site, and cord length becomes a real planning issue on bigger lots.
Gas-powered mixers free you from an outlet and generally handle stiffer, low-slump mixes better. They’re heavier, louder, and need fuel and basic small-engine maintenance, but if your job site is off-grid, gas is usually non-negotiable.
Manual and mortar mixers are a different animal, built for all-sand mixes like mortar and stucco rather than aggregate-heavy concrete. If your project is brick, block, or veneer work, a mortar mixer will outperform a standard drum mixer.
New vs Used Concrete Mixer for Sale: Which Saves You More
A brand-new homeowner-grade mixer typically runs $200 to $700 depending on drum size and power source, while towable commercial units climb into the thousands. A used concrete mixer for sale on Facebook Marketplace or Craigslist can cut that cost by 50% or more, and plenty of DIYers report buying a used $100 to $250 mixer that outlasted the project it was bought for.
The trade-off is risk. New machines come with a warranty and a clean drum, and you know exactly what you’re getting. Used ones need a real inspection before money changes hands, since a mixer’s condition can vary wildly depending on how the previous owner treated it. A steel drum with heavy rust or a motor that’s been rebuilt twice isn’t necessarily a bad buy, but it should come with a lower price to match, and you should factor in the cost of parts or repairs before you commit. This brings up the next question: what exactly should you be checking before handing over cash.
What to Check Before You Buy a Used Mixer
Bring these five checks to any in-person look, whether it’s a driveway sale or a dealer lot:
- Drum interior. Hardened concrete buildup reduces usable capacity and throws off future mixes. A thin coating is normal; chunks are a red flag.
- Motor and gears. Ask the seller to run it. It should sound smooth, not grinding, and the drum should rotate evenly without wobble.
- Welds and frame. Look for cracks or rust bleeding at the joints, especially near the axle on towable units.
- Tires and wheels on any towable mixer. Cracked or dry-rotted tires are cheap to notice and annoying to discover mid-tow.
- Age and hours, if the seller knows them. A well-maintained 10-year-old mixer can still have plenty of life left; a neglected 2-year-old one might not.
If it passes all five, you’re likely looking at a solid deal. It’s also worth asking the seller why they’re letting it go. “Finished the driveway, don’t need it anymore” is a much better answer than a vague shrug.
Keeping a Mixer Running for Years
Whether you buy new or used, a little maintenance goes a long way. Rinse the drum out immediately after every batch, before the concrete has a chance to harden on the interior walls. A stiff brush and a hose handle most of it if you’re quick about it; let it sit overnight and you’re chipping at it with a scraper instead.
Check belts, paddles, and drum guards periodically for wear, and keep gas models topped off with fresh fuel rather than letting old fuel sit in the tank between seasons. Store the mixer somewhere dry, ideally under cover, since a steel drum that sits wet all winter will rust from the inside out. None of this takes more than a few minutes per use, and it’s the difference between a mixer that lasts two seasons and one that lasts fifteen years.
Should You Rent or Buy a Concrete Mixer?
Rental rates generally run $40 to $150 a day for a homeowner-sized mixer, or roughly $150 to $250 for a full week. If you’re doing one project and never touching concrete again, renting keeps things simple. No storage, no maintenance, no resale hassle later.
Buying starts to win once you cross a handful of rental days a year, or once you know more projects are coming (a fence this spring, a patio next fall, garden edging after that). At that point, even a modest used mixer usually pays for itself within one or two rentals you would have otherwise paid for.
Where to Find a Concrete Mixer for Sale
- Home improvement retailers (Home Depot, Lowe’s) for new electric and gas mixers with manufacturer warranties, usually in stock or available for quick delivery.
- Facebook Marketplace and Craigslist for used mixers from homeowners who finished their project, often the best price per cubic foot if you’re willing to inspect in person.
- Equipment dealers and sites like Equipment Trader for commercial-grade and towable mixers, both new and used, when you need something beyond homeowner scale.
- Local rental yards if you decide renting makes more sense than buying after running the numbers above.
Wherever you shop, compare the drum capacity and motor power side by side rather than just the price tag. Two mixers listed at the same dollar amount can differ by several cubic feet of batch capacity, and that gap matters a lot more once you’re standing in the yard mixing your fifth batch of the day.
Final Thought
The best concrete mixer for sale is the one sized to your actual project, not the biggest one in the listing. Nail down your batch size first, decide between electric and gas based on your job site, and don’t skip the inspection if you’re buying used. Get that right and the mixer becomes one of those tools you’re glad you bought years after the original project wrapped up.
Common Questions About Buying a Concrete Mixer
How many bags of concrete justify buying a mixer instead of mixing by hand?
Most DIYers hit their limit around 8 to 12 bags. Below that, a bucket and a paddle mixer on a drill is manageable. Past a dozen 80-pound bags, a mixer saves real time and gives a more consistent batch.
What size concrete mixer do I need for a patio?
A mid-size patio project typically needs a 4 to 6 cubic foot mixer. That range balances batch size with portability, so you’re not hauling an oversized machine around a small backyard job.
Is it cheaper to rent or buy a concrete mixer?
For a single project, renting is usually cheaper upfront at $40 to $150 a day. If you’ll need a mixer for more than a few days across the year, buying, especially a used one, typically works out cheaper over time.
How long does a concrete mixer last?
A well-maintained mixer, cleaned after every use and stored dry, can last well over a decade for homeowner use. Commercial units see far more wear and depend heavily on maintenance schedule and usage hours, with heavy daily use shortening that lifespan considerably compared to occasional weekend projects.
Do I need a special outlet for an electric concrete mixer?
Most homeowner electric mixers run on a standard 120-volt outlet, the same as a shop vac or a power drill. Larger electric models, especially those in the 9 cubic foot range, may require a 240-volt connection, so check the specs before assuming your garage outlet will cut it.
