Georg Sahm GmbH & Co. KG, based in the German town of Eschwege, is a technology leader in the automatic winding of all kinds of technical yarns. Its portfolio includes automatic and manual precision winding machines, automatic bobbin removal devices and transport systems. For extremely precise winding of the high-performance fibres and technical yarns, SAHM uses the TWINSTAR II automatic precision cross winder. The stringent quality requirements of its customers demand high-quality technologies such as Controlled Pneumatics and standard pneumatics from Festo.
The TWINSTAR II winder meets these requirements very reliable, thanks in part to Controlled Pneumatics from Festo. The proportional pressure regulator VEAB controls the yarn tension very precisely and dynamically. When controlling the contact pressure on the bobbin, high accuracy and linearity are key factors. Both ensure the bobbin winding result is more precise, even at a maximum winding speed of up to 2500 metres per minute.