EoW May 2012

F c s Italy

More to green than just the colour!

twist machines, where a single rotating arm is used instead of the traditional two-arm design. By using only one bow or arm, the inertia is reduced and the energy needed to rotate is also reduced. The bow path is designed in a very efficient aerodynamic shape to reduce the wind resistance. The single bow concept is also adopted in the company’s latest 1,250mm single twist machine, MTO1250-CT. The use of an aerodynamic, carbon fibre, single-arm design not only allows higher rotating speeds, but also saves energy. O cine Meccaniche di Lesmo SpA – Italy Website : www.omlesmo.com

OM Lesmo Group has been manufacturing rotating equipment in Italy since 1962. Its chosen machine colour is green, but there is more to the machines than the colour green. Since the production of the very first rotating machine, OM Lesmo engineers have incorporated energy savings as an intricate part of their machine design. OM Lesmo claims to be the first company to introduce and patent single bow design in its double twist machines instead of the traditional design with two bows. This design not only allows higher rotating speeds, but also results in energy savings.

The single bow technology is also used in some of the single

A new concept in backtwist feeders Wire cleaning l technology

WTM, based in Padova, Italy, specialises in equipment for the wire industry, and has enhanced the process of single stranding with its single twisting machines coupled with its new-concept concentric backtwist feeders. The formation of high quality, sophisticated cables (highest CAT number) is made easier: the rotating dancers control with high accuracy the tension of the cable to be twisted, at the outlet of the backtwist feeder. The pre-torsioned cables go in stranding directly without touching anything else, ie pulleys, dancers, etc. In this way the lay-length is constant and without any disruption, thus achieving the highest level of final strands. One of the most relevant characteristics of this new concept of single twisting line is the productivity increase, claimed to be more than two times that of traditional ‘cage’ backwist feeders. The single torsion unit can work up to 1,200 rpm (torsions); in combination with the newly developed backtwist feeder, it is possible to obtain 100% backtwisted strand at 600-700 rpm. Another advantage is the compactness of the system, which allows a complete 12+1 twisting line in less than 17m, saving precious space in the workshop. All of the machines composing the twisting lines have no electric parts in rotation, and every motor, control and regulation card is placed in a stable, fixed base, reducing any possible maintenance. The line can be completed with other WTM equipment, such as tape applicators, binders and compacting dies. Mechanical tests of the cables can also be carried out using WTM’s testing equipment. WTM Srl – Italy Website : www.wtmachinery.com

Serindgamma produces washing-salting and pickling plants, and specialises in in-line cleaning machines with both mechanical and chemical operations. The machines are entirely manufactured in the company’s factory in Magenta, Milan. The flexibility of the company’s technical departments to study and manufacture customised solutions, using tested technology in order to solve problems linked to wire and cable production, has brought the company commissions from all over the world. The plants are normally equipped with the latest generation ultrasound technology, controlled by microprocessor, that works with several frequencies for simultaneous cleaning of aluminium and stainless steel wires without any risk of damaging the surface. multi-tank washing-solutions; the number and dimension of the tanks is determined by the treatment and chemical process required, and the process speed. Additional air blowing and/or heating treatment for drying the wires ensures a perfectly cleaned surface, in order that the wire reaches the post-operations completely dried. The machines are able to treat up to 26 wires in-line. Serindgamma Srl – Italy Website : www.serindgamma.com These plants are composed of

61

EuroWire – May 2012