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ROLLING MILLS, 2 HI

40" x 96" Blaw Knox / Birdsboro, reversing blooming mill, 4000 HP per roll, #21711

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40" x 96" Blaw Knox / Birdsboro, reversing blooming mill, 4000 HP per roll, #21711
Reference #: 21711
Manufacturer: Blaw Knox/Birdsboro

Work roll diameter: 40.0"
Work roll face: 96.0"
Roll drive motors (2): 4,000.0hp ea (direct drive)
Billet size range: 5-1/4" x 5-1/4" - 7.0" x 7.0"
Blooms size range: 8.0" x 8.0" - 10.0" x 13.0"
Typical products: 8.25" x 8.25", 7.0" x 7.0", 6.5" x 6.5"
Yearly capability: 900,000 Tpy


General Specs:
Each roll powered by a 4,000hp 700V motor (8,000hp total)
Roll size: (1,016mm) 40" dia x (2,438mm) 96" wide
Max starting ingot/bloom size: 28" x 28" (711 x 711mm)
Typical breakdown: 20" x 15" bloom down to a 7" x 7" billet in (17) passes
Typical products: 8-1/4" x 8-1/4" to 6-1/2" x 6-1/2" billets
Mill will breakdown a 20" x 15" bloom to a 6-1/2" billet in 3-1/2 minutes

Mill is Complete with:
(2) 4,000hp Roll Drive Motors
General Electric DC motors type MCF, 50/120 RPM, 700V, 36,000 CFM required
3,200kW DC Current Generator General Electric DC Generator type MCF, 340/400 RPM, 700V full load
Entry Table: w/(12) rolls, 3’ centerline, 33’ long, table speed: 650/1300 FPM, (2) 75/100hp motors
Front Reversing Table: w/(9) 18” dia x 96” rolls, 3’ centerline, 24’ long 29.2/58.4hp motors (3) entry & (2) exit 18” x 96” Feed rolls, 30” centerline 29.2/58.4hp motors
Back Reversing Table: w/(9) 18” dia x 96” Rolls, 3’ centerline, 24’ long 29.2/58.4hp motors
Exit Table: w/(12) rolls, 3’ centerline, 33’ long, table speed 650/1300 FPM, (2) 75/100 HP, motors
Front & Back Manipulators w/Side Frames & Lifters on each side: w/(2) 75hp side frame drives, (1) 100hp lift drive Each Side
Electromechanical Screwdowns: w/(2) 100hp 485 RPM motors
Electromechanical Roll Changing Rig: 75hp motor w/counter weight roll balance
Additional Items:
Eight (8) rolls with chocks attached, Four (4) rolls without chocks attached, Four (4) Chocks not assembled on rolls, full electrical, electrical and mechanical spares, extensive documentation, Re:21711

Yearly production capacity of this Mill is 900,000 tons per year (TPy)

Mill is still installed and available for immediate inspection and delivery.






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