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A detailed buying guide: how to choose a cordless concrete vibrator.
This section covers cordless concrete vibrators — models with a flexible shaft and with a built-in poker, running on 18–20 V and 36–40 V batteries. They remove air bubbles from freshly poured concrete and compact the mix in foundations, slabs, columns, walls and formwork. Having no cable is convenient on site, in private house construction and wherever the power source is far away or a cable in a wet environment is dangerous. For choosing concrete vibrators in general, read how to choose a concrete vibrator.
Compact vibrators with a built-in poker suit slabs, stairs and small volumes, while flexible-shaft and backpack models are for foundations, columns and deep formwork. For large volumes, also compare engine-powered equipment. See how to choose engine-powered concrete equipment: mixer, vibrator, screed and power trowel.
Cordless vibrators usually have a 25–38 mm poker, a 1–2 m shaft and a frequency of 10,000–14,000 vpm. The poker must pass between the rebar and reach the bottom of the layer. Read concrete vibrator poker diameter, shaft length and frequency.
18–20 V models suit small pokers and home construction, while 36–40 V models hold frequency with larger pokers and long shafts. A 5–8 Ah battery is usually enough for one pour. Read cordless tool voltage (V) and battery capacity (Ah).
Check compatibility with your existing battery platform, whether the poker and shaft are included and whether they can be swapped for other sizes. See what is a unified battery platform.
A brushless motor keeps a stable frequency in stiff concrete, runs cooler and extends work per charge. Read what is a brushless motor.
The vibrator works around water and cement slurry, so choose a body and battery bay rated IP54 or higher and clean the poker after work. See what is an IP rating and how to protect a tool from dust and moisture.
Built-in poker models weigh 3–6 kg with a battery, and backpack models spread the weight across the back. A rubberised handle and a switch that is easy to use with gloves matter. See tool ergonomics, weight, and safety systems.
Do not run the poker in the air or pressed against rebar, wear waterproof gloves and boots and charge the battery only in a dry place. Read how to use cordless tools safely.
At ToolsArmenia you can compare cordless concrete vibrators by poker diameter, shaft length, frequency, voltage and protection rating and choose the right model for your jobs.
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