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Concrete Power Trowel
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Concrete Power Trowel

The KZE walk behind power trowel imparts a smooth surface finish to the freshly-poured concrete slabs while improving the efficiency of surface treatment. At our company, you can find an assortment of such power trowels that are able to work on large concrete slabs with a radius varying from 3m to 6m. The use of a special adjustment system is essentially to ensure the flatness of the concrete surface. The large gearbox is intended for applications where large rotational torque and high speed finishing are required. The size of work area is an important factor to consider since our trowel is ideally suited for use on large slabs. To buy a proper troweling machine suitable for your job, you also need to consider the type of concrete mix and job site weather conditions, or if there are obstructions and narrow walkways on the site.

The power trowel is used to flatten the concrete slab to create a shiny, polished surface. It is commonly seen on concrete pouring sites where the concrete needs to be properly settled to form an interior floor or patio for a deck. The trowel features a single blade or multiple blades that rotate in a safety cage. Depending on the size of your job size, you can either choose a walk behind version or ride-on type. Rotating blades are generally 24 to 46 inches long. They take three forms: floating, finishing, or combined.

1. Extra large gearbox withstands long time of use.
2. Heavy-weight design ensures a flat surface with a smooth finish.
3. The operating lever is adjustable in terms of its height. Dead mans switch assures operator safety and easy control.
4. The power trowel has the lifting bar as standard to allow the equipment to be carried to the job site by only two men.
5. The centrifugal safety delay switch shuts down the engine immediately in the event of operators losing grip on the operating lever.
6. The screw control makes sure the blade precisely adjusted.
7. For operating safety, the guard ring is utilized.
8. Lifting hook and throttle control are both available as options.

How to Operate the Power Trowel?
Step 1 - Choose the Right One
For a poured concrete area no more than 1000m2, a walk behind model with 24- to 36-inch long blades is fit for purpose. Prepare the floating-type and finishing-type blades, or a combination of the two for doing this job.

When the work area exceeds 1000m2, a ride-on version becomes a necessity. It can speed up the finishing process before the concrete sets too firmly. The blades needed for performing this job should be 36- to 48-inch long. If there are corners or edges on the slab, switch to the 24-inch blade to handle them. Choose either the floating version or finishing version blades for this job. The combined type is also an ideal fit.

Step 2 - Examine the Concrete Slab prior to Troweling
Leave the concrete to hardening for a few hours until it is strong enough to support your body and power trowel. You can test the strength of the concrete by doing a footprint test. Step onto the concrete slab and measure the depth of your footprint. If you sink down 1/8 inch more or less, the concrete is at the right hardness

Step 3 - Float the Concrete to Remove "Hills and Valleys"
1. Use the floating blades or the combined blades to level the concrete surface on your first pass. The floating motion flattens the protrusions and fills the hollows.
2. Run the trowel at a speed approaching 3/4 of the rated value. In this way, the weight of the machine can be evenly distributed over the concrete slab, thus avoiding the machine digging into the concrete.
3. The rotational speed is kept at a proper level, preventing splatter of concrete pours being thrown forward to block the machine's passage.
4. Overlap the previous pass by 1/2 the length of the trowel blades as you run the machine from one side to the other of the concrete slab.
5. When you have finished floating the entire slab once, turn the machine at 90 degrees to your first rows. This crossover floating technique allows you to focus on the spots that are missed in the first finishing session.

Step 4 - Finish the Concrete to Seal, Close and Polish
1. Change the trowel blade to finishing blades. Or you can resume the finishing work with the combined blades to create a shiny, polished surface, with special attention to seal the bug holes on the slab.
2. Run the machine at a speed approaching its rated capacity. Lower the blades to come close to the slab surface, in order to apply maximum pressure to the slab.
3. Make a second pass if necessary, focusing on the protrusions, hollows, or corners.

Safety Tips
1. Prior to operation, users should put on goggles, ear protection and boots with steel toe and soleplate.
2. Wear heavy leather work gloves while changing power trowel blades.
3. Move slowly when turning corners to keep the trowel from tipping.
4. Turn off the machine to clean or change blades.
5. Enclose the area, for safety and to prevent marring the concrete.

Related Names
Concrete Surface Finisher | Power Float | Construction Tools

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