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Langzauner has introduced the LZK-OK 130; the first in a new series of high-precision presses which is capable of accommodating all pressing methods, and has the ability to easily create entire process programs.
Employing the latest variable-speed hydraulic drive technology, Langzauner says the LZK-OK 130 sets new standards of precision whilst reducing energy usage and lowering operating noise levels.
According to Langzauner, development of the new press marks a move away from conventional proportional valve technology for the hydraulic unit, to a variable-speed drive where an internal gear pump, driven by a servo motor, generates the precise amount of pressure ‘on-demand’. The whole pressing procedure is menu-controlled and control tasks are via an optimised operating system, with 15” touch-screen, which also records operating data to CSV files.
All the parameters and functions can be configured individually – from the pressing power and closing speed, to the strength and duration of heating. They say the newly-designed press is the first of its kind on the market that can handle all pressing techniques; including RTM, prepreg and injection moulding. The demand for accuracy is fully met thanks to a pressure deviation of around 1%, together with a capability of pressing to size at a tolerance of ±0.01mm.
The thermo-oil heating and cooling device is fully integrated and, via the flexible press ram and sliding table, directly and indirectly-heated moulds can be utilised or panels can be accommodated. Loading and unloading the press is performed externally using a driven sliding feed table. Personal safety protection around the press includes a vertical sliding door, with viewing panel, which closes once the work-piece is in position. The press is further protected by light barriers and fixed grills.
In the UK, Austrian manufacturer Langzauner is represented by CD (UK), with its machinery sales division led by Eric Whorne. Eric, who has spent most of his working life involved with press technology, believes the LZK-OK 130’s ability to provide high flexibility composite pressing will make it very attractive to the automotive and aerospace sectors, as well as for research and development facilities.
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