'SMS' 20-Hi ZM Cold Strip Mill – TENOVA AGC, RH Line

‘SMS-DEMAG-SACK’ 20-Hi Sendzimir Reversing Cold Strip Mill

Make: Mannesmann Demag Sack
Model: ZR22 B-52”
Type: 20-Hi Sendzimir Reversing Cold Strip Mill
Year of manufacture: 1989
Revamping / upgrades: AGC fitted by I2S in 1994
Mothballed since: Ceased production in September 2023
Application: Designed for the cold rolling of various steel grades, including stainless steel and high-strength steels, to achieve high precision and surface finish.
Equipment weight (estimated): approx. 350 tons
Line overall length: approx. 22 meters
Rolling direction: Right to left (right hand line)
Processed material: Austenitic and ferritic steels
                                   AISI 300 and 400 series
Strip width: max. 1,320 mm
                    min. 510 mm
Strip thickness: 3 – 6 mm entry
                            0.3 – 3.5 mm exit
Coil inside diameter:610 mm    
Coil outside diameter: 1,850 mm
(with paper and sleeves) max. 1,950 mm
                                           min. 1,000 mm
Coil weight: max. 20,000 kg
                    spec. 15 kg/mm strip width

Unwinder:
Drive: N = 224 kW (300 HP)
           n = 0-408/1200 rpm
Unwinding speed: v = 200 m/min
Gear ration: I = 11.76
Nominal mandrel dia.: 610 mm
Expansion range: 560/620 mm
Strip tension: max. 70 kN
                       min.   7 kN           
                      
     
Leveller:
Drive: N = 27 kW
           n = 900 rpm
Levelling speed: v = 20 m/min
Gear ratio: i = 25
Levelling roll dia.: 200 mm

Mill
Drive: N = 2260 kW (15 % continuous overload)
           n = 0-331/825 rpm

Rolling Speed: V = 0/180/450 m/min
Gear ratio: i = 1

Roll sizes:
Nominal roll dia.: 63.5 mm
Nominal 1st intermediate                        
roll dia.: 102 mm
Nominal 2nd intermediate                      
roll dia.: 173 mm
Backing bearing dia.: 300 mm
Backing bearing width: 172.64 mm
Number of backing bearings: 48

Winder:
Drive: N = 2500 kW (15 % continuous overload)
           n = 0-265-331/1058 rpm
Gear ratio: i = 4,505
Winder mandrel dia.: 610 mm
Max. strip tension: 400 kN – 360 m/min.
                                  314 kN – 450 m/min.

Auxiliary equipment:
Hydraulic system: P = 130 bar
                               Q = 420 l/min.
Servo hydraulics: P = 210 bar
                              Q = 40 l/min.
Roll cooling oil system: Q = 7000 l/min.
Central lubrication oil system    
for gear units: Q = 550 l/min.
Sump pumping station: Q = 500 l/min.
Mist exhaust system: V = 100.000 m3/h

Sendzimir Mills Roll Shop:
–            (4) Roll Grinders KT425 (SHIBAURA-TOSHIBA) approx. 1000 x diam 410 mm

Mechanical equipment List:

Item 1.0 Entry Section
1.1        Pay-off coil loading skids
1.2        Pay-off coil car
1.3        Pay-off reel
1.4        Paper winder
1.5        Leveller

Item 2.0 Mill and winders
2.1        Sendzimir mill ZR 22 B – 52”
(ZERO CROWN HOUSING https://sendzimir.com/zero-crown-housing/)
2.2        Rolls
2.3        Backing bearing assemblies
2.4        Roll changing rig
2.5        Crown adjustment
2.6        Hydraulic roll positioning
2.7        Adjustments for the lower backing bearing assemblies
2.8        Adjustments for the outside backing bearing assemblies
2.9        Intermediate roll lateral adjustment
2.10      Strip entry guide
2.11      Oil wipers
2.12      Deflector rolls
2.13      Feed rolls
2.14      Mill stand drive
2.15      Base for mill housing
2.16      Mill platform
2.17      Guiding tables
2.18      Winder No. I and No. II
2.19      Multi-tooth intermediate shaft coupling
2.20      Hold down rolls
2.21      Dua paper winder
2.22      Coil striper
2.23      Coil car
2.24      Coil loading skids
2.25      Belt wrapper

 
Item 3.0 Simple parts
3.1        Floor plates proper
3.2        Edge capping strips
3.3        Hand railing
3.4        Anchoring bolts and plates

Item 4.0 Auxiliary equipment
4.1        Hydraulic system, 130 bar
4.2        Servo-hydraulic system, 210 bar
4.3        Interconnecting piping for hydraulic
4.4        Roll cooling oil system – precoat filter
4.5        Central oil lubrication system
4.6        Interconnecting piping for media
4.7        Dust exhausting system

E&A equipment and motor list:

– PLC Oil Filter A2N (MITSUBISHI, 2006)
– PLC AGC GE 90-70 (GE, 2011)
– PLC AFC (SUNDWIG, 2012)
– PLC Control DCS5000 (RELIANCE, 2008)
– Drive (RELIANCE, 2008) x 13
– Automax Rack x 2 (RELIANCE)
– DCS Rack x 26 (RELIANCE)
– Transformer 4370 KVA x 3
– Transformer 3800 KVA x 3
– Transformer 1000 KVA x 4
– Transformer 500 KVA x 2
– Transformer 300 KVA x 2
– Transformer 50 KVA x 2
– Transformer 15 KVA x 4
– EPC (NORTH AMERICAN)
– Main DC Motor 1250KW x 12
– P.O.R. DC Motor 225 KW x 2
– Leveller DC Motor 27 KW x 2
– Paper Winder DC Motor 3 KW x 10
– AC Motor x 102

This lot is part of a combination lot: A Complete Stainless Steel Cold Rolling Facility(Combination)