EuroWire January 2015

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News
Technology
January 2015 34
The most recent innovation of Niehoff’s BMV type series of rotary
braiding machines is the BMI 124 model. The striking feature of this
24-spool machine is its inclined braiding rotor.
The inclination means a cable deflection of just 45° (instead of 90°)
on each deflection pulley, resulting in reduced cable deformation
and improved braiding quality.
If a caterpillar haul-off is used, the machine can be applied to
manufacture cables with diameters up to 40mm. Like the other four
models in the BMV series, which are designed for 12, 16 or 24 spools
in vertical operation, the BMI 124 also offers infinitely variable
electronic control of the braiding speed and pitch and an automatic
central lubrication system.
The BMI 124 also features fully automatic electrohydraulic slideway
lubrication. The BMI 124 enables bundles of braiding wire to be
produced withmaximumbundle cross-sections of 24 x 1.5mm².
All process steps, from the pay-off of the cable to be braided to the
individual wires and bundles of wires and the final take-up of the
braided cable, are monitored by a quality control system. An empty
bobbin detection system can also be installed which ensures that
the machine is stopped automatically before a braiding bobbin is
completely empty.
This system minimises waste and the amount of residual wire left
on the bobbin. For greater operational safety and reliability, the
temperature of slideways is overseen by a monitoring system. The
operator can use this system for adjusting the lubrication frequency
and amount of lubricant to optimise lubricant consumption. BMV
machines can be operated for a long time without an operator.
The vertical BMV machines can be combined with different types of
taping systems so that braiding and taping can be performed in a
single operation. This simplifies the manufacturing process, reduces
the amount of space required and increases the product quality
compared with using individual process steps.
The experience of many cable manufacturers has shown that one
BMV machine can replace two or three older types of braiding
machine. The mentioned braiders can be used for the processing
of bare or coated round and flat wire made of copper, aluminium
and stainless steel with single-wire diameters of 0.05 to 0.3mm, as
well as yarns and fibres made of plastic.
The machines can be used for the production of data cables,
control cables and coaxial cables as well as for braiding for battery
cables, strand braids and for mechanical reinforcement for
pressure hoses.
Maschinenfabrik NiehoffGmbH& Co KG – Germany
Website:
The new BMI 124 rotary braiding machine
▲ ▲ The new BMI 124 from Niehoff
Longer die life
Electricity is the lifeline of developed and developing nations.
It has tied the cable and wire die industries together, and wire
dies are an essential cost factor and a major key to boost any
wire plant’s economy.
Substandard quality of the die can affect both the quality and
production of the drawn wire and the necessary profit of the
wire plant.
At Ajex & Turner, from selecting the precise quality raw
material for the die, taking care of all the dimensions and
manufacturing until executing quality control parameters and
reviewing dies in real-time 3D, the company makes sure that
products meet the standard and are also error-free.
The company manufactures wire drawing dies for multi-wire
and compacting in PCD/ND/carbide/vitrified nanocrystaline
dies for copper, aluminium and CO2 wire.
Ajex and Turner – India Website: