Description

Leveller (also called Leveling Machine or Straightener) used to remove coil set, waviness, & internal stresses from metal strips or sheets. It ensures the material becomes flat, straight, & ready for additional processing such as roll forming, slitting or cutting.

Main Functions
Eliminate coil curvature (coil set)
Remove center buckle, edge waves, & camber
Improve flatness & surface quality
Prepare material for precision operations

Working Principle
Rollers apply controlled bending & reverse bending forces
Process relieves internal stresses and flattens the material
Metal strip passes through a series of upper & lower rollers arranged alternately
Number of rollers & pressure settings depend on material thickness and strength

Types of Levellers
Precision
Heavy Duty
2-Hi / 4-Hi / 6-Hi
Servo / CNC

Key Components
Backup Rollers Provide support to work rollers (in precision levellers)
Adjustment Mechanism Screw or hydraulic system for gap control
Entry & Exit Guides Ensure proper strip alignment
Work Rollers Upper and lower rollers for levelling
Drive System Motor, gearbox, and coupling
Frame Structure Heavy-duty body for stability
Control System Manual or PLC-based

Applications
Roll forming lines
Coil slitting lines
Cut-to-length lines
Steel service centers
Sheet metal fabrication
Automotive and appliance industries

Selection of Levellers has crucial role on performance of Cut to Length Machines
Two Levellers in One Line also increases thickness range covered in one line
Success of Cut to Length Line depends on properly designed Robust Constructed 5 Hi, 4 Hi or 6 Hi Precision Shape Correction Leveller