Coil Processing·Cold Rolling Mill

56" (1422mm) HITACHI 5 STAND 6 HI CONTINUOUS TANDEM COLD ROLLING MILL

Sold by National Machinery Exchange·Available·Last verified 3h ago

Manufacturer: Hitachi
Year: 1989
Condition: Used

Description

56" (1422mm) HITACHI 5 STAND 6 HI CONTINUOUS TANDEM COLD ROLLING MILL HIGHLIGHTS: Manufacturer: Hitachi Style: 5 Stand Tandem Mill Mill Stands: 6 HI on Each Stand w/ Quick Change Roll Cars Current Configuration: Tandem Mill with Flying Shear and Carousel Reel Continuously Coupled to Pickle Line at Entry Year of Manufacture: 1989 (Completely Rebuilt 2001 and Additional Upgrades) MATERIAL RANGE: Material Width: 56" (1422mm) Max Entry Thickness Range: 0.180" - 0.08" (4.572mm - 2.032mm) Exit Thickness Range: 0.008" - 0. 100" (0.203mm - 2.54mm) Exit Line Speed: 7000 FPM (2133 MPM) ID Exit: 34 Ton x 78.74" OD x 20" (34 Ton X 2000mm OD X 508mm) Roll Force: 2000 Tons Max Shapemeter Roll - Yes, Davy Type POWER Mill Stands: 35,872 HP (26,750 kW) Tension Reels: 9454 HP (7,050 kW) Entry Bridle: 900 HP (671 kW) Total Power: 46,227 HP (34,471 kW) GENERAL LINE SPECIFICATIONS: MILL ENTRY CONFIGURATION Entry Speed, design rated for 869 FPM Bridle top speed increased to 970 FPM Bridle #4 & Steering Unit (2) IMS Thickness Gauges (Installed 2021) (1) Traversing profile thickness gauge, serves as backup center thickness gauge (1) primary stationary center thickness gauge. Entry centering guides Three roll non-driven bridle, Gauge is equipped with a laser velocimeter enabling accurate mass flow control MILL STANDS HC mill in stands 1 to 4: -Intermediate roll (IMR) shifting but without IMR bending UC mill in stand 5: -Intermediate roll (IMR) shifting with IMR Bending Intermediate cooling between stands Work roll bending crown in and crown out cylinders on 5 stands Work roll diameter range: 18.7" to 16.35" x 60" face width Intermediate roll diameter range: 21.26" to 18.9" Backup roll diameter range: 53" to 48.43" All Backup, Intermediate, and work rolls are ground flat with zero crown Shape is achieved through roll bending and intermediate shifting. Automatic cooling spray header at 2" zone spacing and 30 zones integrated with shapemeter roll feedback to apply thermal expansion profile adjustments to work rolls and intermediate rolls Roll force by bottom hydraulic cylinder of the mill stand Hitachi HYROP forced motor valve is used to obtain responsive gap changes. Design Force Limit: 2000 tons Tension by cylinder control force limit (software) - Sheet: 1800 Ton / Tin: 1200 Ton Pass line adjustment by hydraulic step and wedge assembly at top of mill stand with integral load cells for measuring roll force Backup Roll Bearing: Morgoil Oil Film Bearing Work Roll and Intermediate Roll bearings: Spherical roller bearings with air- oil lubrication Top and Bottom Work Rolls Independently Driven MILL STAND POWER Stand 1 Top: DC 1475KW 142/426 rpm / Bottom: DC 1475 KW 142/426 rpm Stand 2 Top: DC 2600KW 250/750 rpm / Bottom: DC 2600 KW 250/750 rpm Stand 3 Top: (2x's) DC 1550KW 315/945 rpm / Bottom: (2x's) DC 1550 KW 315/945 rpm Stand 4 Top: (2x's) DC 1550KW 315/945 rpm / Bottom: (2x's) DC 1550 KW 315/945 rpm Stand 5 Top: (2x's) DC 1550KW 315/945 rpm / Bottom: (2x's) DC 1550 KW 315/945 rpm (5) ROLL CHANGE CARS; used to change work roll and intermediate rolls INTERSTAND Cobble guards: exit side of each mill stand to prevent strip break entanglement in the roll stack Thickness gauge between stand 1 and stand 2 for entry gauge control (Installed 2021, IMS). The gauge is equipped with a laser velocimeter enabling accurate mass flow control MILL EXIT 60" Davy Shapemeter Roll - Segmented air bearing, 2" wide rotors, 30 zones Flying shear - Strip Cutting Speed - 700 to 1000 FPM depending on thickness (2) IMS Exit thickness gauges (New 2021) Equipped with laser velocimeters enabling accurate mass flow control Allows each gauge to traverse offline to standardize without interrupting continuous operation EXIT CAROUSEL MANDREL TYPE RECOILER: Individual Drive Motors Mandrel #1: (3x's) DC 1175 KW 223/870 rpm Mandrel #2: (3x's) DC 1175 KW 223/870 rpm CAROUSEL TENSION REEL Coil to Coil, continuous operation, rotation of the carousel ramping to top speed EQUIPPED WITH: Belt wrapper Sleeve Loading Sleeve Dimensions: 19.8" ID; 21.3" OD x 40" width for the production of tinplate to prevent collapsed coil eyes. Inspection Station with inspection coil car Exit coil car Exit walking beam, banding station, scale, coil ID marking robot with RFID Two walking beams in series covering 16 coil saddles at 2300 mm spacing Full Complement of Backup Rolls; Intermediate Rolls; Work Rolls; Chocks & Bearings Complete Roll Count Provided on Request

Specifications

Backup Roll Diameter Max Inches	53
Backup Roll Diameter Min Inches	48.43
Bridle Top Speed Fpm	970
Carousel Saddles	16
Carousel Spacing (mm)	2,300
Entry Bridle Power (kW)	671
Entry Speed Design Fpm	869
Entry Thickness Max (mm)	4.572
Entry Thickness Min (mm)	2.032
Exit Line Speed Mpm	2,133
Exit Thickness Max (mm)	2.54
Exit Thickness Min (mm)	0.203
Flying Shear Speed Max Fpm	1,000
Flying Shear Speed Min Fpm	700
Hi Configuration	6 HI
Intermediate Roll Diameter Max Inches	21.26
Intermediate Roll Diameter Min Inches	18.9
Material Width (mm)	1,422
Mill Stands Power (kW)	26,750
Mill Style	tandem
Number Of Stands	5
Rebuilt Year	2,001
Roll Change Cars	5
Roll Force Max (tons)	2,000
Shapemeter Roll Width Inches	60
Sleeve Id Inches	19.8
Sleeve Od Inches	21.3
Sleeve Width Inches	40
Tension Force Limit Sheet (tons)	1,800
Tension Force Limit Tin (tons)	1,200
Tension Reels Power (kW)	7,050
Total Power (kW)	34,471
Work Roll Diameter Max Inches	18.7
Work Roll Diameter Min Inches	16.35
Work Roll Face Width Inches	60