World of Steel® - Used Hi reversing Cold Rolling Mills

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4 Hi reversing Cold Rolling Mill

Description	Specification
Material to be Rolled	Low Carbon Steel
Actual Max. Speed of the Mill	175 mpm
Max. Width of Strip	1040 mm
Max. Thickness of Strip	3.5
Min. Thickness of Output Strip	0.29 mm
Coil ID at Solid Drum	558 mm
Max. Coil ID at Solid Drum	1674 mm
Max.Coil Weight	18 MT
Mill Motor	1500 HP, 0-250-500 RPM, 600 V DC
Pinion Gear Box Ratio	1:01
Reel Motor	500 HP, 0-250 - 875 RPM
Reel Gear Box Ratio	5.72:1
Pay Line Speed (Max)	100 mpm
Coil ID at Pay Off	610 mm
Max. Coil OD at Pay Off	1830 mm
Pay Off Motor Rating	100 HP, 0-500-1650 RPM
Rewinding Line Speed	100 mpm
Recoiler Motor Rating	100 HP, 0-500-1650 RPM
Coil ID at Recoiler	610 mm
Coil OD at Recoiler	1830 mm
Max. Reel Tension at Max. Speed	7000 Kg
Roll Separating Force	600 - 700 MT
Screw Down Motor	42 HP
Type of Screw Down	Electro Mechanical
Screw Down Gear Ratio	263.78:1
Work Roll Dia (Max)	304.8 mm
Work Roll Dia (Min)	275 mm
Work Roll Total Length	2071 mm
Work Roll Barrel Length	1110 mm
Back Up Roll Dia (Max)	35 Inches
Back Up Roll Dia (Min)	33 Inches
Back Up Roll Total Length	3048 mm
Back Up Roll Barrel Length	1066 mm
Deflector Roll dia	275 mm
Roll Coolant	2 to 5% Water based emulsion(Quaker oil)
Roll Coolant Flow Rate	2500 LPM
Type of Filteration System	Paper Band & Magnetic drum filteration
Quality of Filteration	50 Micron & 200 PPM
Morgoil Flow Rate	200 LPM
M. G. Set for D C supply

20 Hi reversing Cold Rolling Mill No.1

Description	Specification
20 Hi Sendzmir Mill	23" - 43"
Material to be rolled	Low carbon Steel
Max. Speed of the Mill (Designed)	167 mpm
Max. Speed of the Mill (After modification)	290 mpm
Max. Width of the Strip	1070 mpm
Min. Width of the Strip	575 mm
Max. thickness of the strip	3.5 mm
Min. thickness of the output Strip	0.15 mm
Coil I.D. at Reel	0.15 mm
Coil O.D. at Reel	710 mm
Reel Motor	500 HP (0-300-1200 RPM)
Reel Gear Box Ratio	9.09:1
Mill Gear Box Ratio	1.103:1
Mill Motor	1200 HP (0-500-800)
Max. Tension at 160 mpm	14 MT
Mqx. Tension at 290 mpm	7.75 MT
Work Roll Dia	45 mm
Back Up Shaft Dia	100 mm ( 4 Nos.)
Ist Intermediate Roll	72 mm (6 Nos.)
IInd Intermediate Roll	129 mm (8 Nos)
Back Up bearing	100 /225/120 (56 Nos)
Type of Roll Coolant	Rollmat 40 (Mineral Oil)
Flow Rate of Coolant	2500 LPM
Lubricant Bearing	Rollmat 40 1500 LPM
Type of Roll Coolant Filteration System	Offline Filteration System (Centrifuge)
	Clean Oil Tank capacity: 50000 Ltrs
	Dirty Oil Tank capacity: 25000 Ltrs
Deflector Roll Dia	400 mm
Thickness measurement device	Radiometric thickness gauge
	ECIL make
	Radioactive source Americium-241
	Source Strength 1 curie
	Accuracy 5 Microns
Centralised Lubrication System	Flow Rate 415 LPM at 6 Bar
	Lubricant is ISO VG 320
Pay Off Line Max. Speed	100 mpm
Coil ID at Pay Off	610 mm
Max. Coil O.D.	1830 mm
Pay Off Motor Rating	100 HP (0-600 -1650)
Rewinding Line Speed	100 mpm
Blower for Mill & Reel Motors ventilation	80,000 M3/ Hr at 200 mm WG Pressure
Monthly Prodn. at an Avg. Gauge of 0.20 mm	1500 MT

20 Hi reversing Cold Rolling Mill No2

Description	Specification
Type of Mill	Reversible, Single Stand 20 HI Mill
	Model - ZR - 22 A - 48
Rolling Matl	Mild Steel
Entry Thickness	3.5 mm. - 1.6 mm
Exit Thickness	1.20 mm - 0.12 mm
Coil O/ D	1800 mm. Max.
Coil I/ D	508 mm
Coil Width	750-1150 mm
Coil Wt.	18 kg/mm of width
Work Roll (2 No.)
OD	62 mm. Max 52 mm Min
Total Length	1300 mm
First Intermediate Rolls (4 No.)
OD	104 mm. Max 96 mm Min
Total Length	1330 mm
Drive Roll (4 No.)
OD	174 mm. Max 168 mm Min
Total Length	1250 mm.
Idler Roll (2 No.)
OD	174 mm. Max 168 mm Min
Total Length	1250 mm
Back Up Bearing (8 No.)
OD	300 mm
Total No of Bearing in a Shaft	8
Back-Up Roll Brg. no.
Timken Type TQO 10516 ( ID. 25.492"X OD 40.5" X 22" ) 647.7X 1028.7 X565.15 mm.
Mill Rolling Speed	Operating - 250 MPM(420 MPM Max.)
Mill Gear Box Ratio	1 : 1
Mill Motor	1000 kw (1200 HP ) X 2 Nos.
ETR / DTR Motor	750 Kw RPM 0-533-1600
MAX. Tension	18 MT.
Pay -off Drum	Mandrel 610 MM
Mill Roll load System	HAGC
Coolant Oil	Make - ROLMAT 40
	Natural Oil Base

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