Cutters and Spacers

Blastrac scarifiers are versatile surface preparation tools used for concrete, asphalt and even steel surfaces. Models can be connected to an appropriate dust collection system for virtually dust-free operation. Ideal for the painting or flooring contractor hired to apply, or remove and repair, a coating on a concrete floor, scarifying can help achieve the proper surface preparation and correct surface profile that is critical to a successful and long lasting coating job—the key to preventing call backs.

Scarifiers use various shapes of steel or carbide tipped cutters, or solid tungsten milling cutters (depending on the application), that are loaded onto shafts placed around the perimeter of a cylindrical drum. As the drum rotates, the cutters impact the surface at a high speed, fracturing the coating and/or contaminants and abrading the concrete surface. Scarifiers are used to remove contaminants, adhesives, paint, and other coatings. They are also very useful for preparing problem areas on concrete slabs: over-troweled burned areas, high spots, curled expansion joints, excessive trowel marks, and weather damage, etc. They are efficiently used for transitioning uneven surfaces and trip hazards. The cutters and spacers can be configured on the drum shafts in a variety of ways for additional applications, including the cutting of safety grooves in concrete ramps, walkways and loading docks.

Scarifiers can remove oil, compounded contaminants, traffic lines, epoxy coatings or paint from asphalt or concrete. The solid tungsten milling cutters are superb for removing thermal-plastic traffic lines and markings or other thick membrane-type overlayments. Smaller scarifiers with drums of tungsten stars are excellent for removing difficult glues and mastics in residential re-flooring work.