ROBERTSON, NON REVERSING ALUMINIUM COLD ROLLING MILL
Mfc.: Robertson Built: 1948 Upgraded: 1973 / 1980 / 1990
Mill type: 4 Hi Non - reversing Cold Rolling Mill
Material to be rolled: 3xxx-8xxx-&-5xxx series with 5% Mg max.)
Pass reduction: 10 —60 %
Maximum entry thickness: 7.0 mm Minimum exit thickness: 0.5 mm
Maximum coil dimensions: OD 1210 mm Strip width: 650 - 1340 mm.
Weight: 2700 kg
C.C.I. Spool dimensions: ID.: 355 mm - OD 400 mm — Length: 1300/1500 mm
Rolls dimension: Work rolls Ø 355 x 1473 mm Back up rolls: Ø 736 x 1473 mm
Mill Main Motor: 1 x 750 HP; DC Rolling speed (max): 220 m/min.
Mill gap control: Mechanical (screw down system). Rolling load (max): 1000 Ton
Unwinder: 2 DC Motor 85 HP each Clamping cones
Unwinding tension: Max. 4000 Kg
Rewinder: 1 DC Motor 275 HP Clamping cones
Coolant system: Rolling coolant flow: max 2000 L/min.
Coolant filter:
a) Return line: Continuous paper filter: Q=2000 L/min.
b) Schneider filter: 11 boxes Q=1200 L/min.
Coolant nozzles: 29 zones distribution, 8 headers of 29 nozzles each.
One header by BUR and three headers by WR
Total nozzles: 232 commanded through pneumatic servo valves located on one top and one
bottom mill frame main collectors
System new in 1990,
Lubrication:
Forced bearing lubrication system (by oil circulation):
Heated oil lubrication tank: 600 liters; Heating System: 3 x 2 kW
2 (Two) Pumps, Q=150 L/min., P = 4 kg/cm²
Others:
Bending and equilibrating work rolls system.
1 (one) PAUL Pump, Q = 19 L/min., P = 120 kg/cm², motor CA 12 HP; 950 rpm
Equilibrating back up rolls system
Group hydro – pneumatic MATAIRCO Hydraulic pressure: 120/250 kg/cm²
Pneumatic pressure: 2.6 kg/cm²
Screw down system. Electric motors
Gear box lubrication System
Main hydraulic system; 1 (one) VICKERS Pump; Q = 65 L/min., P=45 / 75 kg/cm²,
motor CA 20 HP; 1500 rpm
Electrics:
Converting Ward Leonard Group: Mill: 1 (one) asynchronic motor 675 kW; 750 rpm.
1 (one) Generator 600 kW; 440 V DC
Converting Ward Leonard Group Rewinder: 1 (one) asynchronic motor 345 kW, 1500 RPM,
1 (one) Generator 262 kW, 440 V DC
Unwinder: Two generators on serial connection of 64 kW each. (220 V - 337 A; 590/1600 RPM),
Fume exhaust system: 1 fan 40 HP --- 1400 rpm, 1 Injector electrical room 30 HP; 1400 rpm,
1 extractor electrical room, 20 HP; 1400 rpm.
Start-up date: 1965
Ref. 9122
LINDEMANN, 2500 MT, OIL HYDRAULIC DIRECT WITH PIERCER EXTRUSION LINE
Type oil-hydraulic direct with Piercer
Billet diameter 218 / 292 mm
Billet length 830 mm
Drive 3 x 200 kW
Run-out length length 25 m
Stretcher 100 ton
including induction billet heater, run-out and
cooling tables, stretcher and finishing saw
Year of Manifact.:1961
Technical Data:
Extrusion press:
Manufacturer:Lindemann
Type:oilhydr. direct
Extrusion force:25MN
Block Ø:218 & 292mm
Container Ø:225 & 300mm
Container length:1000mm
Main pumps:3 x Oilgear
Main motors:3 x 200kW
Billet Heater:
Manufacturer:BBC
Type:Induction type
Billet (log):830mm
Run-out System:
Manufacturer:Lein
Type:Waliking beam
Run-out table length:25m
Puller:no
Stretcher:100
Ref. 91237
INNOCENTI 1650 TONS ALUMINIUM DIRECT EXTRUSION PRESS LINE
Direct Extrusion Press 1650 tons Pressure: 210 bars, oil
Mfc.: INNOCENTI Built: 1968
Capacity: 900 kg/h Tie rods no.: 3
Container diameter: 198 mm Billet diameter: 192 mm
Ingot length min.: 400 mm Ingot length max.: 800 mm
Ingot weight max.: 63 kg Extrusion press: approx. 22.5 mm/sec.
Fixed dummy block qty. 3 columns (tie rod)
Fixed extrusion stem, back loading Dead time including burp cycle 25 s
Main pumps – qty. 2 Mfc.: Oil Gear completely renewed!
Main oil tank capacity: 4000 L Roller table Mfc.: OMAV
Gas billet furnace Mfc.: Junker Hot shear
Puller Mfc.: Eduards Force: 160 kg
Electric linear motor loader Mfc.: ERI Dead cycle time: 25 sec.
Stretcher Mfc.: OMAV Force: 25 ton
Stretcher's length min.: 11000 mm Stretcher's length max. 45000 mm
Cold saw length with stacker min. 2000 mm Cold saw length with stacker max. 8200 mm
Cold saw length without stacker min. 1400 mm Cold saw length without stacker max. 8200 mm
Stacker automatic Mfc.: ERI
Note: Die heater is not included!
Main break downs:
"- Cracks in the main cylinder (3 times and last one in 2007)
- 3 tie rods in 1999 and one in 2003
- Container holder in 2007"
Ref. 91238
ALUMINIUM PROCESSING EQUIPMENT FOR SALE
Modern 1250MM Wide Stretch Leveller
YOM 2006
Decommissioned and Dismantled 2010
Excellent Condition
All European Drives, Controls & Bearings
Full Range of Spares Inc Tension Rolls and Levelling Rolls
Drawings & Technical Documentation
Detailed Particulars in Course of Preparation
MINO 2Hi Reversing Hot Mill
Installed in China in 1997
Various Upgrades
Mill Motors Excluded
Nearly New Gearbox
2 Coilers With Belt Wrappers
2 x Hydraulic Shears
Slab Size 5100 x 1150 x 410mm
Range of Spares Including 8 Work Rolls
Drawing and Technical Documentation Available
Detailed particulars in course of preparation
Ref. 5121
