Waterjet Cutting System Reduces Cutting Allowance

Nishijimax CNC carbide cutoff systems cut more parts per hour and more parts per blade than a standard production saw, developers say. Designed for fully automatic cycles, the saws feature auto-loaders and barstockers. After a bar length has reached the remnant end, the loading table introduces a new bar on the in-feed conveyor. The machine will continue to cycle as long as bars remain on the table or until a pre-determined number of cuts are made. A programmable saw spindle feed axis automatically sets a precise feed rate and maintains a shoulder milling cutters consistent chip load. The saw blade feed rate is controlled via an AC servomotor with encoder, a Mitsubishi programmable servodrive and a precision ballscrew. Other features include tungsten carbide inserts a powder metal saw blade brake designed to eliminate vibration when the blade enters the cut; a gearbox oil chiller to maintain constant gearbox temperature; and an easily accessible oil-pressure adjustment valve. According to the company, the rigid construction of the system contributes to its accurate operation and enables it to produce finishes from 40 to 80 rms. The saw head travels on hardened and ground linear rails and the saw blade housing is mounted to the massive saw head. Blade capacities range from 2.75" to 9".

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