Some machines, like EDCO's Chip-Dek scabbler, can remove up to 1/4 inch of concrete in a single pass.
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"They're a perfect choice for rental. Selecting the right machine for your inventory should be based on "performance, versatility, reputation and price," says John Edwards with Smith Manufacturing Co."A multi-purpose machine that serves most or all of your customers surface preparation requirements is a good choice," he says.So who uses these machines?
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As with grinders, scarifiers are available with a choice of power options (including gas, electric, diesel and air) and with hookups for attaching a vacuum to collect dust and debris.The cutting wheels themselves are mounted on shafts on a removable drum.
"Polishing concrete, stone and terrazzo with a high speed tool is a different approach that's much faster and provides a superior finish. Slowly move the machine over the concrete in a steady fashion. "The rotary machines are heavier and operate at much higher rpm," says McCutchen.
Conversion to edge grinding is easy – just remove the lid cover (or covers if you want to do edge grinding on both sides at once) and flip the blade disc to an upright position.The company states that this machine is “lightweight,” and, compared to a school bus, it is, at 154 pounds. This unit includes a simple crank to set the depth at whatever you want. They are often used for creating a more aggressive profile or removing material.
The Bosch brand is well known in the tool and construction industry, and most job sites will have any number of Bosch tools on the job. )Looking for a good concrete cutting saw? Bosch calls its speed control system Constant Response circuitry, which means that this grinder’s motor can handle extended operational load. Jstanczyk. "The 10- and 20-inch rotary machines are ideal for residential and light commercial surface preparation applications. Their design allows them to move in a straight line across the floor with relative ease, which means greater flexibility and less struggle for operators. Thanks to their lightweight design, planetary grinders work best on less aggressive jobs, such as smoothing out a concrete floor or preparing a residential garage floor for an epoxy coating. Production rates range from 350 to 1,500 square feet per hour (depending on machine size and horsepower) for a 1/8-inch removal depth of 3,500-psi concrete.For customers, machine choice is based completely on the desired outcome of the floor, says McCutchen.
Vibration is another contributing factor, and in that regard, this grinder does its part in fighting back with Metabo Vibratech, a damping system that drastically reduces the amount of vibration that is transmitted to the user.The side handle can be set in three different positions for user preference, and the main handle on top swivels.
Rubber spacers at stress points absorb a good portion of the shock waves, sparing the person using the machine. Opt for a planer with a pivoting handle that will allow it to be used on the opposite side.Silica is just another name for quartz, and it’s found in sand, concrete, masonry work, rock and other places on construction sites.
She received a bachelor's degree in economics and management from Goucher College in Towson, Maryland. This is truly one of the best concrete grinders on the market.Moving on to the hand-held planers, this is one of the best you can find – the Bosch CSG15. That might knock it out of consideration for you, but if you can satisfy its craving for power, you’re going to end up with a very nice, dependable machine.If you’re not familiar with the brand Husqvarna, you should be.
It’s suitable for concrete grading, alleviating trip hazards, surface prep and other tough concrete applications.
Now, as to the noise: well, the engine runs fairly quietly, but there’s not a whole lot that can be done about the blades slamming into solid concrete. If you don’t pour a lot of slabs, but the slabs you do pour are big ones, you should get a walk-behind.For everyone else, a walk-behind is probably overkill.Hand-held units go anywhere and are easy to transport.