Winding Calculators

roll geometry · web speed · tension & drives

Roll geometry & reel dimensions

Diameter, length, caliper, weight, turns, slitting layout and core sizes. Results update as you type.

Web speed, RPM & timing

Surface speed and shaft RPM, winder speed range, draw, accumulator storage, run time and gearing.

Tension, torque, nip & drives

Web tension, winding torque, drive power, nip load, taper tension, roll inertia and acceleration torque.