Aquajet Rotolance Lineup Excels at Surface Preparation for Most Concrete Surface Profiles

Published: 22/3, 2022

Aquajet’s series of Rotolance 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 Aqua Cutter 410 and 710 series robots, the new Aqua Cutter 750V, Ergo System, and Aqua Spine, providing increased productivity and enhanced worker safety for surface preparation applications over manual methods such as sandblasting, hand lancing, or pneumatic breaking.


ICRI identifies hydrodemolition

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, which pertains to selecting and specifying concrete surface preparation, identifies hydrodemolition 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 in (6mm).

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 ft2 (46.5 m2) per hour.

Contractors with a lightweight Ergo System can choose from two Rotolance attachments — the Rotolance 130 and Rotolance 130S — for maintenance 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 Ergo Spine 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 in (360 mm). A vacuum port allows contractors to connect a vacuum system for water recovery, ensuring safe, environmentally friendly operation. 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 14,500 psi (1,000 bar) while the Rotolance 2500 is rated for 36,250 psi (2,500 bar).

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