- Pressemitteilung BoxID 520360
Available in large, small and now also in medium - the Wefttronic® RS offers even more working widths
The Wefttronic® RS has an exceptional performance profile and now even more working widths
Applications with high demands
The main end-uses of weft-inserted fabrics, which come in a variety of designs, are as advertising substrates and printed grounds, tarpaulins, protective textiles, awnings, abrasive elements and plaster grids.
In general, competition is fierce on the markets for stable textiles. Any manufacturer who wants to be successful needs production machines which combine an exceptional price:performance ratio with a high product quality, are easy to operate, and offer a sufficient level of flexibility thanks to their different working widths. These requirements spurred KARL MAYER Malimo on to develop a completely new basic concept for its raschel machines with parallel weft insertion. The result of this extensive development work was the Wefttronic® RS (Fig.). This innovative range was unveiled for the first time at ITMA ASIA + CITME 2010, and its working width has been constantly expanded since then.
High efficiency and quality
The modifications in the construction, which led to the development of the Wefttronic® RS, focused mainly on increasing the speed and productivity. Consequently, the entire machine space and basic construction were adapted to the higher dynamics of the warp knitting process in order to increase the speed. In addition to increasing the production speed, the working width was also extended. This enabled the performance to be increased by up to 20%.
Another improvement in efficiency offered by the new weft-insertion machine has been achieved by improving the components used in weft insertion. For example, the guide system of the circulating chain has been re-designed, and the weft insertion system has been optimised. The weft carriage now contains 30 yarns instead of the previous 24.
The modified weft insertion system, with its 1/2-inch spacing, also guarantees fault-free yarn laying without the yarns sticking together, which also increases the product quality. In order to produce a perfect textile, the entire yarn handling sequence on the machine was analysed and improved. These changes in the construction resulted in uniform zero inlay run-ins in the delivery unit and at the guide rollers, thanks to central supports and short yarn paths for the knitting yarns in the ground guide bars.
Different working widths give greater flexibility
The recent developments have concentrated on complementing the range of working widths available. Whereas the first Wefttronic® machine, which appeared in 2010, had a width of 268", a version having a width of 138" was already available for ShanghaiTex 2011. A Wefttronic® RS in a width of 213" was being exhibited at ITMA Asia 2012. This intermediate width is complemented by a machine having a width of 176", which was launched at the same time.
The different working widths of the Wefttronic® RS for the simultaneous production of several fabric webs next to each other can be fully utilised to achieve a high level of operating efficiency.
All the technical features of the Wefttronic® RS are housed in a space-saving machine configuration. The compact construction minimises floor space requirements and the short distances promote easy operation. Touchscreens for man:machine communication, the location of the ladder on the right-hand side of the machine, the drive, the patterning mechanism, and optimum width adjustment by a maximum of 60" round off the package of features that minimise the time and effort involved in operating the machine.
The Wefttronic® RS can be integrated in the company's own network or linked to the Internet to simplify data transfer. Linking the machine to the World Wide Web enables KARL MAYER's Teleservice Plus to be accessed. Among other things, this service speeds up fault analysis and communication, and enables the service centre to access the machine on-site in real time.
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