Cold Rolling Mills

4 Hi Mills

1 PAY OFF REEL 2 COIL CAR AT PAY OF REEL
3 PINCH ROLL CUM FLATTENER 4 TENSION REEL
5 COIL CAR AT TENSION REEL 6 DEFLECTOR ROLL WITH APRON
7 SHEAR 8 THICKNESS GAUGE
9 TENSIO METER 10 BELT WRAPPER
11 MILL STAND ASSEMBLY 12 HYDRAULIC AGC MECHANISM
13 WEDGE BLOCK SYSTEM    

4-HI Reversing Cold Mills

Magadh offers 4-Hi reversing cold mills for strip widths up to 1650 mm, minimum finished strip thicknesses down to 0.15 mm, and mill speeds up to 1400 MPM.

The main mill features are:

  • Balanced proportional design of the mill stand.
  • Quick response hydraulic AGC system.
  • High (+/-) work roll bending force per neck.
  • Hydraulic BUR change system.
  • Quick work roll change system with side shifter.
  • Constant pass line with bottom beam-mounted long stroke roll force cylinder.
  • Top-mounted wedge gear system for top roll wear compensation.
  • Air-oil / oil mist lubrication of roll neck bearings for high-speed applications.
  • Non-contact thickness gauge.
  • Shape control systems with zonal coolant control.

4-HI Temper Mills for Process Lines

Recent trends in the metal industry have led to increased use of temper mills as part of processing lines. Magadh provides temper mills for galvanizing lines, tension leveling lines, pickling lines, and cut-to-length lines, in addition to independent temper mills. The heart of our temper mill, ensuring high product quality, is the automatic elongation system. Using high-resolution digital tachometers, computer control, and double-acting roll force cylinders, we achieve a high degree of elongation accuracy. The elongation control system acquires comparison signals via two high-resolution tachometers located at the entry and exit sides. The elongation software calculates actual elongation by comparing the measured "length in" and "length out" signals.

Magadh temper mills offer features such as:

  • Mae-west blocks for ease of roll removal.
  • Double-acting roll bending cylinders.
  • Quick work roll change system with strip in the mill.
  • Hydraulic wedge system for pass line adjustment.
  • Anti-crimp rolls and crossbow rolls.
  • Online polishers and roll bite lubrication systems.