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Typical water jet cutting machines have a working envelope as small as a few square feet, or up to hundreds of square feet. Ultra-high-pressure water pumps are available from as low as 40,000 psi (280 MPa) up to 100,000 psi (690 MPa). [44] There has also been a growth in small, desktop-sized machines that operate at pressures under 10kpsi.
Ultra high pressure water jet cutters are used to cut a wide variety of materials including granite, concrete (see hydrodemolition), ceramics, fabric and even Kevlar. [15] One such cutter delivers 55,000 psi (380 MPa) through a nozzle 0.003 inches (76 μm) in diameter at 1 kilometre per second, which can cut a person at a close range.
Wasserwerfer 10000 pictured on the left beside its predecessor, the Wasserwerfer 9000. The need for new water cannons for the federal and state police of Germany was first discussed at the 2005 Innenministerkonferenz; some older Wasserwerfer 9000s, previously criticised for safety concerns, [3] were due to be retired following the 2006 FIFA World Cup that would take place across Germany. [4]
A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller ( axial-flow pump ), a centrifugal pump , or a mixed flow pump which is a combination of both centrifugal and axial designs.
Headquartered in Winnenden, Germany, it produces both cleaning equipment and full cleaning systems. The company is the world market leader in cleaning technology and employs more than 15,000 people worldwide. In 2022, it posted sales revenues of €3.1 billion ($3.38 billion) [3] and sold more than 13 million machines. Kärcher has 150 ...
A similar technology is the high pressure hybrid water-abrasive-ice jet treatment. Such technology is based on a high- pressure abrasive-water jet with addition of dry-ice pellets CO 2. Borkowski et al. [Bor03] show that effectiveness of surface treatment with the hybrid jet depends on the quality of ice particles.
Water jet may refer to: A jet of water under pressure, like in an ornamental fountain or drain cleaner; Pump-jet, a marine propulsion mechanism for jetskis and other types of boats; Water jet cutter, a tool for cutting and the machining of engineering materials; Water-jet printer, a printer that makes use of water instead of ink; Dental water ...
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