1270mm Hitachi 4HI Single Stand Cold Rolling Mill

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Summary

Rolling Mills 4 High Rolling Mill
Builder:  Hitachi
Year 1974 (Upgraded in 2009)
 
Upgrades:
Automatic Gage Control Cylinder by GE December 1985
New x- Ray Gage (Toshiba) Dec

Specifications

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Builder:  Hitachi
Year 1974 (Upgraded in 2009)
 
Upgrades:
Automatic Gage Control Cylinder by GE December 1985
New x- Ray Gage (Toshiba) December 1985
Exit Section Automatic Flatness Control (ABB) September 1993
Vacuum Filter (180-200 mesh) September 1993
X-Ray Thickness Gage System upgrade (Toshiba) February 2001
Entry Section Automatic Flatness Gage (ABB) September 2001
DEM Filter (DAIDO STEEL) June 2003
NEW AGC Innovation Controller (GE) January 2006
Entry and Exit trension reels and gear boxes (Seoul Engg) 2010
HAGC Cylinders Revamp (Seoul Engg) 2010
 
Speed: 800 mpm
Coil Weight: 3 to 22.5 tons
Input: 1.6 - 4.5 mm
Exit: 0.15 – 2.3 mm
Coil ID Entry 562/610 mm
Exit 508 mm
Coil OD 1000 mm to 1950 mm
Work Roll: 460 dia x 1400 mm
Back Roll: 1360 dia x 1370 mm