Whereas the first injection molding machine was built in 1954 for in-house use, ARBURG set off down the successful path to becoming a machine constructor with its first series production machine in 1956. The next milestone was the ALLROUNDER principle, developed and patented in 1961, which made it possible to operate in various working positions on a single injection molding machine.
This principle is still available today for ALLROUNDERs from various series, in the form of the “swivelling mold clamp” option. In this way four different working positions can be achieved. In the first working position the injection molding machine’s injection unit and clamping unit are both in the conventional horizontal position. With the second working position, the injection unit is positioned vertically and the clamping unit remains in the horizontal position. With the third working position, the mold clamping unit of the injection molding machine is pivoted and both the injection unit and the clamping unit are positioned vertically. With the fourth working position, the injection unit is horizontal whereas the clamping unit is positioned vertically.
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