01 / ROLLING
Cold Rolling Force Calculator
Estimate rolling force, torque, mill stretch and pressure distribution with strip tension and work hardening.
Open calculator →Sergafat engineering tools
Engineering Toolbox
Practical calculators for rolling mill engineers, process specialists and steel production teams.
02 / COIL GEOMETRY
Coil Size & Weight Calculator
Calculate coil weight or outside diameter, strip length and turns. Supports steel, copper, aluminum and Zn/AlSi coatings.
Open calculator →03 / PRODUCTION TIME
Rolling Pass Time Calculator
Estimate pass duration using coil geometry, reduction, threading, adjustment, acceleration, body speed and staged slowdown. Includes a speed-time chart and phase summary.
Open calculator →04 / MULTI-PASS PLANNING
Multi-Pass Rolling Planner
Find the minimum feasible pass count with force, torque, power, gearbox and tension limits. Favor heavier early reductions and progressively lighter final passes. Version 5.4.
Open planner →05 / GAUGE DISTURBANCES
Thickness Disturbance Simulator
Explore how entry gauge, strip tension, friction, material strength and HGC gap disturbances shift rolling force and exit thickness. Working-point curves and sampled disturbance envelope.
Open simulator →06 / FLATNESS & BUCKLING
4-Hi Roll Stack & Flatness Lab
Explore WR/BUR deflection, crown and campaign wear, DS/NDS bending, HGC tilt, transverse stress and predicted center, edge or quarter buckling. Includes optimization and live strip visualization. v0.5.4.
Open flatness lab →