Aquajet hydrodemolition machine fits small job site spaces

Aquajet Systems AB, a hydrodemolition machine manufacturer in  Holsbybrunn, Sweden, recently acquired by Brokk AB, introduces the Aqua Cutter 410V. The model combines the compact size of the Aqua Cutter 410A and the mast system of the Aqua Cutter 710V, allowing it to work in tight spaces with extended reach in horizontal, vertical and overhead applications. The 410V is designed for a wide variety of concrete removal tasks, such as renovation and bridge and road repair.

“We provide contractors the ability to work in confined spaces while improving safety and productivity,” says Roger Simonsson, Aquajet Systems managing director. “The Aqua Cutter 410V accomplishes that and more. This means less risk for contractors, higher ROI and more successful job sites.”

The 2,756-pound Aqua Cutter 410V uses 15,000 to 40,000 pounds per square inch water jets designed to remove as much as 9 cubic feet per hour of concrete. Contractors can adjust the robot’s stroke to control the depth of cuts and vary the water pressure depending on whether they are removing loose, deteriorated concrete from the sound concrete below, or sound concrete to a predetermined depth. The process has the added benefit of cleaning and descaling the rebar, the company says.

Operators can control the 410V from a safe distance using the unit’s radio remote control, either wirelessly or with a hard wire. The remote communicates with the robot’s wheeled power control module. Contractors can remove the module from the tracked portion to reduce the crawler to a third of its original size. This is designed to allow the crawler to drive into tight environments, such as small tunnels and flooded sewer pipes, while the module remains connected via a cord. 

In addition, the 410V is designed to remove concrete in corners that would be difficult to access with hand tools. 

Aquajet constructs the 410V’s steel mast in sections — an design aimed at allowing operators to raise the front power head up to 13.2 feet without additional support.

Aqua Cutter robots feature ceramic nozzles specifically designed for demanding hydrodemolition applications that last 300 to 350 hours, depending on the water quality. All robots also feature Aquajet Systems’ patented equal distance system (EDS). EDS maintains a preset distance from the nozzle to the concrete surface, regardless of the angle of the water jet.

The 410V robot fits into Aquajet Systems’ 23-foot power packs. These large metal containers include a high pressure pump by Hammelmann, Oelde, Germany, large capacity engine and control systems, along with a storage area for the robot, making for easy transportation to and from the jobsite and a secure location for the duration of the job.