On jobsites where electricity is not available or worker mobility is desired, Northrock’s new line of backpack vibrators run off a two-cycle, 50-cc, 2.5-horsepower engine. These units come with a choice of 7-, 10- or 14-foot shafts and vibrator heads up to 2 inches in diameter. The engine swivels 260 degrees to minimize fatigue and allow you to use the vibrator from either the right or left side. For vibrator heads you have a choice of six models from 3/4 inch to 2 inches and a special 4-inch-long shaft is available for slab compaction, tilt up and other precast work. Optional coated and rubber tipped heads can be ordered for use around rebar and expensive forms.
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