More and more fabrics for industrial applications are being woven on air-jet weaving machines, and in larger widths as well.
Following this trend, DORNIER presents for the first time at the exhibition an air-jet weaving machine in 540 cm width to continue the previous success of DORNIER’s air-jet weaving machines in the technical textile sector with airbags, awnings, coating fabrics etc.


Technical fabrics for geotextiles, coatings, advertising banners as well as project fabrics for textile curtains and carpet backings are gaining “width“. With DORNIER being a leader in the technical textiles sector it was only natural for the company to offer a wider machine for this sector.

The key factor in developing this machine was the use of the proven basic concept of DORNIER’s sturdy rapier weaving machine. The latter has been in use in all areas of technical textiles since the Seventies and is indispensable when processing especially thick and heavy fabrics as well as filling threads that no other filling insertion system can cope with. Thus the DORNIER air-jet weaving machine combines all the experience and machine design criteria to meet the technological challenge of 540 cm nominal widths.
The pneumatic filling insertion has been modified to cope with the higher demands. The main nozzle on the DORNIER air-jet weaving machine is the primary component that determines thread acceleration and speed during filling insertion. Optimum force application without affecting filling yarn properties demands a precise air stream attained through special developments in internal main nozzle geometry. Mobile tandem main nozzles were developed to double the main nozzle effect. This demands a stable slay construction, a stable double-sided drive with complementary cam assemblies and mass compensating machine dynamics.

Decisively for larger widths the powerful mobile main and tandem nozzles are now combined with our patented ServoControl® system providing faster air regulation. Here just one servo-valve supports pressure control and regulation for up to 8 main and tandem nozzles. Pressure changes up to 2 bar can be controlled, pick by pick, in the highest resolution. The servo-valve is compact and located close to the consumers to ensure short reaction times. Pressure is displayed as absolute values, numeric and graphic, on the machine Dialog Panel. Special jet design for the relay nozzles supports processing filament yarns in yarn count range 167 dtex to 2500 dtex and fiber yarns from Ne 3 to Ne 12.

The machine equipment was specially designed to meet the specific demands of technical fabrics. Filling threads are monitored by the patented Triple Weft Sensor (TWS) controlling fiber and filament yarns as well. Leno, hot melt or pneumatic tucker devices are available for selvedge formation. Apart from cam, dobby and Jacquard machines, as shedding motions, the new EasyLeno® technology can also be used for leno as well as plain weaves.