A waterjet cutting installation is only as good as its high-pressure pump, as STM, an exhibitor and expert in the field, points out.
The newly developed STM-JET high-pressure pump 4200.45 delivers a maximum operating pressure of 4000 bar and delivers 4.6 l/min, as it is called. They also impress with more power, less wear and tear and high energy efficiency.
(Photo: STM)
This is why the newly developed 4200.45 high-pressure pump comes with a maximum operating pressure of 4000 bar and a flowrate of 4.6 l/min: not only is the performance higher, but wear is also low and the operation is energy-efficient. A particular aim in the design was to achieve constant pressure for top cut quality, the firm tells us. Functionality has been boosted by the optionally available “Pressuresaver” pressure reduction, which enables individual high-speed pressure adjustment at each individual output.
With a power of 45 kW for 0.40 mm waterjets, the new pump provides, because of the XL pressure transducer, roughly 35 % more cutting power than with 37 kW models, STM tells us. At the same time, the longer stroke results in 20 % fewer double strokes and therefore longer service lifetimes for seals and non-return valves – and all for the same cutting power. This is said to reduce stress on the entire high-pressure system. Further advantages result from the especially low holding current when the cutting valve is closed and the 1.5-fold starting current, we are told.
STM Waterjet at the Metav 2018: Hall 16, Booth D125
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