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Machine 13477
Type of Mill : 20-HI Reversing Single Stand cold rolling mill
Material to be Rolled : Hot rolled and pickled coil of low carbon steel
Mill Origin : Demag - Sendzimir, Germany
Present status : Running in good condition
Year of Manufacturing : 1967
Phase wise up gradation:
2001: Erection & commissioning with sophisticated L&T drive, Modicon PLC,
Spradecom thickness gauge & AGC Alstom PLC.
2004: Thickness gauge up gradation with M/S Jasch Engg. pvt Ltd.
2005: Coil rolling capacity increased 10 ton to 18 ton mechanically and
electrically drive upgraded with M/S control technique to get optimum Tension
and AGC revamped with M/s Pitel Engg. pvt Ltd., India
2010: PLC & HMI system upgraded with Siemens (latest version).
2015: Drive system revamping with ABB ACS 800 (latest version), Germany and
Siemens PLC & HMI
Incoming coil data:
Strip width : 1000 mm max.
Strip thickness (input) : 2.0 mm max.
Coil size : 508 I.D x 1850 O.D
Coil weight : 18 ton max.
Outgoing coil data:
Strip thickness (finished) : 0.095 mm min.
Coil size : 508 I.D x 1850 O.D
Coil weight : 18 ton max.
Other Specification:
Mill hand : Right to Left
Mill speed : 530 mpm max.
Work rolls : 2 nos 60 mm dia x 1114 mm length
Back up roll : 8 nos with 40 nos bearing set
Roll barrel : (300 mm dia x 172 mm width)
Drive roll : 4 nos 170-173 mm dia, 1221 mm length
Idler Roll : 2 nos 170-173 mm dia, 1258 mm length
IMR : 4 nos 98 mm to 104 mm dia, 1185 mm length
Motors
Main mill : 2 x 1750 HP DC, 0 - 450 - 760 rpm
ETR : 2 x 900 HP DC, 0 - 230 - 730 rpm
DTR : 2 x 900 HP DC, 0 - 230 - 730 rpm
Pay off reel : 1 x 25 HP AC (for threading only)
Leveler and feeding motor : 1 x 35 HP AC
Gear box ratios
Main mill : 1:1
Coiler : 2.18:1
Drum diameter
Coiler : 508 mm
Pay off reel : Cone Type
Strip tension : 16000 kg max.
Strip winding : Under winding
Strip thickness control : Automatic gauge control system (AGC)
Pitel Engg. Pvt Ltd., New Delhi, India w/Hydraulic cylinder operated system
Strip Thickness Measuring : Non contact type thickness measuring Gauges at
Mill entry and delivery side
Type : Isotope, 3 curie
Movement : by hydraulic cylinder
Supplier : Jash Industries Ltd., Mumbai, India
Roll Separating force : 50 ton.
Measurements:
Pass line height : 900 mm
Deflector roll diameter : 400 mm
Roll coolant:
Roll coolant : VELROLL
Grade : VELROLL 26
Concentration : 2.5 - 3 %
COT pump motor : 110 KW
DOT pump motor : 45 KW
Fume exhaust system : Installed with Mill hood
Motor ventilation Blower : 1 no.
Motor power : 350 kw AC, 970 rpm
Lubrication system : One no centralized lubrication for Entry, Exit
Tension reel GB and Mill pinion stand.
Motor Bearing : White metal bearing
Motor bearing lubrication : Pedestal cooling
Tension Reels : Expanding/Collapsing Single expansion type
Mandrel.
Transformer Specification:
Mill Transformer : 11 kv/750 dual winding V, 50 Hz, DdOYN11, 4100 kva,
Voltamp, India
DTR transformer : 11 kv/750 V, 50 Hz, DYN11, 2000 kva, Voltamp, India
ETR Transformer : 11 kv/750 V, 50 Hz, DYN11, 2000 kva, Voltamp, India
Auxiliary Transformer : 11 kv/440 V, 50 Hz, DYN11, 2000 kva, Energy pac,
Bangladesh
VCB Specification :
Incomer : 1250 A, Drawout type, Energy pac, Bangladesh
ETR Transformer : 630 A, Drawout type, Energy pac, Bangladesh
DTR Transformer : 630 A, Drawout type, Energy pac, Bangladesh
Mill Transformer : 630 A, Drawout type, Energy pac, Bangladesh
Auxiliary Transformer : 630 A, Drawout type, Energy pac, Bangladesh
Automation device:
Drive system : DC drive, ABB, Germany
Commissioning done by Control care, India
PLC : S7 300 and 315, Siemens
AGC : Thickness control with auto gauge control and
ASD : M/S Pitel Engg. pvt Ltd., New Delhi, India
HMI system : Semantic, Siemens, Control care India Ltd.
**Temporary Specifications Subject to Revisions**
**PRICE QUOTED AS IS WHERE IS SUBJECT TO PRIOR SALE**
**ALL SPECIFICATIONS ARE SUBJECT TO VERIFICATION BY PURCHASER**
| Machinery International Corporation | Contact Us | Email Sales Department | 203.484.0400 |
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