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Cable Production
Equipment
52
Wire & Cable ASIA – May/June 2007
Irrespective of the kind of cable they
manufacture, cable manufacturers
are confronted with the challenge of
a keen competition with increasing
quality requirements.
Therefore,
cable
manufacturers
need production equipment which
guarantees a high grade of precision,
production safety, reproducibility,
economic efficiency, and flexibility.
Maschinenfabrik Niehoff GmbH &
Co KG has developed production
equipment which covers all steps from
copper wire drawing to power cables,
building wire, automotive wire, data
cables, LAN cables and special cables
manufacturing.
Bunching and stranding
Some examples of the Niehoff cable
manufacturing product range are
the D series double-twist bunching
machines and the DSI series
double-twist stranding machines.
The special features of these
machines include the one bow con-
struction which significantly reduces
both drive energy requirements and
noise emissions, together with the
contactless transfer of machine data
within the machine and individual
AC drives, which greatly lowers
maintenance requirements and costs.
The D series of bunching machines
comprises four differently sized
models which are designed for cross
sections from 0.05mm² to 16mm² and
spool sizes from 400-800mm flange
diameter.
The DSI type double-twist stranding
machines (DSI631 and DSI1001)
are designed to combine insulated
conductors into pairs or quadruples
and to strand conductor pairs into
LAN cables and other special cables.
The machines can be used for a
maximum strand diameter of 8mm
or 15mm, while the lay length can be
freely adjusted between 8-180mm with
a very narrow tolerance band.
The lay length consistency is < ±0.5%
of the effective lay length. The DSI
type machines can be combined
with various additional equipment in
order to produce all types of data and
special cables including LAN cables
of all categories – even the still non-
specified ones – with the highest
precision.
Winding and braiding
The semi-automatic and automatic
winding machines ‘System Hacoba’
built by Niehoff are designed to
process single and multi-wire spools
onto braiding bobbins.
Excellent tension control and an easy
wire path promote the processing of
fine wires consistently and accurately
onto the bobbins. The resulting high
quality package allows these bobbins
to be processed into the braiding
process at high braiding speeds with
lower wire break rates.
Therefore, these machines play a key
role in ensuring that Niehoff’s high-
speed braiding machines of the BMV
series can unfold their full potential.
Designed for 16 braiding bobbins
respectively 24 braiding bobbins, the
BMV type machines can process bare
or coated copper wire, aluminium wire
and stainless steel wire with diameters
ranging from 0.05-0.3mm, as well as
artificial yarn and fibres.
Versatile, precise and flexible