Description:

20 HI SENDZIMIR 1000MM WIDTH CRM YEAR 1967

Used Secondhand 20 Hi sendzimir 1000mm width CRM

Used Secondhand 20 Hi x 1000 Cold mill. Its specs are given below. It has been modernized very recently and is as good as NEW.
Type of Mill : 20hi 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 Mfg : 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 x1114 mm length
Back up roll : 8 nos with 40 nos bearing set
Roll barrel : (300 mm dia x172 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 : 1x35 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 with 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 : 1no.
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/750dual 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.