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This paper describes the design of the new Ingersoll-Rand Mobile Waterjet Cutting equipment which provides an accurate cutting system for general construction applications. The innovative design of accessories permits remote cutting using up to 3060 Bar (45,000 psi) and 8.3 Llmin. (2.2 GPM) of water. Abrasive materials are added to cut hard materials. The waterjet cutting unit is powered by a diesel engine and is mounted on a mobile chassis which may be towed to the construction site. ABRASIVE WATERJET EQUIPMENT operating at pressures of 3060 BAR (45,000 psi) can cut every known material including reinforced concrete, steel and stone (1, 2)*. This paper describes the development and operation of a new mobile diesel powered high pressure waterjet cutting machine. The equipment has been used to cut up to 175 mm thick steel and 600 mm thick concrete. A hydraulic driven intensifier is used to generate the high water pressure.

The continuing need to provide innovation and cost efficiency set the stage for a clean sheet approach to designing a double drum vibratory roller for the ten-ton (9 metric ton) class. This is an account of the process, from concept to production, undertaken at Ingersoll-Rand to arrive at the best solution: The DA-48 vibratory compactor.