MONROE, WA— , a global leader in Hydrodemolition machine manufacturing, offers a lineup of Hydrodemolition robots and attachments for improved surface preparation. Aquajet’s series of attachments effectively clean, remove and roughen concrete, leaving a better bonding surface that meets international guidelines for the majority of concrete surface profiles (CSP). Rotolance attachments pair with the company’s , providing increased productivity and enhanced worker safety for surface preparation applications over manual methods such as sandblasting, hand lancing or pneumatic breaking.
Proper surface preparation is necessary for long-lasting concrete restoration
Subpar surface preparation can have a negative impact on the integrity of the structure and lead to premature failure, increasing repair intervals and overall costs. International Concrete Research Institute (ICRI) technical guideline 310.2R-2013 pertaining to selecting and specifying concrete surface preparation identifies Hydrodemolition, sometimes referred to as water blasting or water jetting, as one of few methods capable of achieving CSP 3 through 10. This versatility allows Hydrodemolition contractors to efficiently achieve CPS 3, suitable for some thin film and high build film coatings, all the way up to CPS 10, which is necessary for concrete overlays and repair materials greater than .25 inches (6 millimeters). Aquajet’s Rotolance attachments bring with the same machines for increased utilization and versatility, leading to enhanced overall return on investment.
Aquajet’s Rotolance attachments use a rotating spray bar with multiple nozzles. With hydraulic operation and rotation speeds up to 1000 RPM, the spray bar easily adjusts to meet surface preparation requirements for a number of profiles. Combined with the adjustable traverse speed of Aquajet’s Hydrodemolition robots, Rotolance attachments provide precise results in horizontal, vertical and overhead applications. Depending on pump flow, pressure and desired profile, Rotolance attachments can achieve production rates in excess of 500 square feet (46.5 square meters) per hour.
— the Rotolance 130 and Rotolance 130Smaintenance and removal applications at bridges, harbors, water treatment facilities, reservoirs and tanks. The attachments offer new versatility for the Ergo System and are compatible with the Ergo Climber and to provide access in confined or hard-to-reach places. The 130S is also equipped with a suspension system, allowing it to follow uneven or curved surfaces such as ship hulls and storage tanks.
The Rotolance 1000 and Rotolance 2500 pair with Aquajet’s Aqua Cutter robots and cover a surface diameter as wide as 14 inches (360 mm). A vacuum port allows contractors to connect a vacuum system for water recovery, ensuring safe, environmentally friendly operation. Additionally, both Rotolance attachments can replace the regular cutting heads on the Aqua Spine, allowing operators to remove concrete that would be difficult or impossible to reach with a robot alone. The Rotolance 1000 is rated for a maximum pressure of 1000 bar or 14,500 PSI, while the Rotolance 2500 is rated for 2500 bar or 36,250 PSI.