EuroWire January 2015

News Technology

The new BMI 124 rotary braiding machine

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 : www.niehoff.de 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 CO 2 wire. Ajex and Turner – India Website : www.ajexturner.com

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

▲ ▲ The new BMI 124 from Niehoff

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January 2015