New blown film surface winders from Davis-Standard switch to pneumatics instead of hydraulics for controlling the winding force.
     The SLC (SLiding Carriage) series joins the long-standing PAC series, and is capable of winding the same size – 1,500 mm – reels. It is available in widths from 1,118 to 3,400 mm and can wind rolls on 75 mm – 150 mm cores.
     The winder is AC-driven and introduces a number of engineering features for improved performance. The weight of the roll is supported by bearings located close to the wound roll edge and supported on a horizontal linear rail for greater shaft performance. The winding force is controlled with pneumatic cylinders with control feedback and taper capabilities. The finished roll unloading system is independent from the winding transfer cycle sequence, shortening and streamlining new roll changes. Roll carts and shaft handling are available to add automation to fit each plant’s needs.
     Other characteristics include a horizontal flat bed design, web tension control, touch screen controls for winder settings, and two centre slitters for multiple lane production. Options include additional slitters, a centre drive feature, gap winding, shaft accelerator, cord expander roll and shaft extractor/cart.