Efficient BCF yarn tangling
RoTac³ tangling unit with comprehensive modifications
Major technological changes to Oerlikon
Neumag’s RoTac³ tangling unit produce efficient BCF yarn
tangling. On the one hand, the tangling nozzle has been
flow-optimized, allowing the air pressure to be lowered by
approximately 10 percent compared to its predecessor, while
maintaining the same knot strength. Furthermore, the nozzle
bearing arrangements have been improved. Consequently, either
higher speeds or nozzle rings with greater numbers of holes can
be used, generating more knots in the yarn.
Even at high production speeds, tangling
knots can be set considerably more evenly with the RoTac³ than
in the case of other conventional tangling units. Frequent
tangling dropouts are now a thing of the past. This ensures
better yarn quality and has a positive impact on further
processing. The result: the carpet has a visibly more even
The modified RoTac³ is part of the BCF S8’s standard
scope of delivery.
Stable and efficient yarn production is
important to yarn manufacturers. Not only does the evenness of
the tangling knots make the investment interesting, so too does
the energy efficiency of the RoTac3. The tangling unit requires
up to 50% less energy for generating compressed air. Against the
background of rising energy prices, this represents a
prerequisite for optimizing production costs.
Oerlikon Neumag has been able to secure
various retrofit contracts since the launch of the RoTac3 in
2015. New systems are predominantly equipped with RoTac³. The
RoTac³ is included in the standard scope of delivery for the
newer BCF S8 system. The tangling unit is available as an option
both for the single-end Sytec One system and the three-end S+
and it can also be retrofitted on request.