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used cold rolling mill

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Used 1380mm 6-hi reverse cold rolling mill

  • product description
  • Technical Parameters

made in 2013--2014

include one year warranty 

2、 main specs

2.1、 material coil: Hot rolling coil after pickling(trimming or not trimming)

2.1.1、 material type: low carbon steel、middle carbon steel、low alloy。

2.1.2、 grade: Q195-Q235;08Al;SPHC、SPHD、SPHE

2.1.3、 performance:   σs=140~360N/mm²

2.1.4、 thickness:   2.5~4.0mm

2.1.5、 width:   1000~1250mm

2.1.6、 coil ID:   φ610mm

2.1.7、 coil OD:   φ800~φ1800 mm

2.1.8、 max coil weight:       22t

2.1.9、 fit GB standard。

2.2、 finished product:

2.2.1、 thickness:     0.2~0.3mm

2.2.2、 width:   1000~1250mm

2.2.3、 coil ID:   φ610mm  

2.2.4、 coil OD:     φ800~φ1800mm

2.2.5、 max coil weight:       22t    

2.2.6、 accumulative max deformation:vary on different material types

Q195≤91%      Q235≤90%     Q345≤85%

2.3、 finished product accuracy: (δ is rolling thickness)

2.3.1、 length way thickness error:  static rolling:  ≤±2%δ;

   accelerate and decelerate rolling: ≤±3%δ;

2.4、 mill main specs:

2.4.1、 max rolling force:    14000kN  

2.4.2、 max rolling torque: 120kNm

2.4.3、 max rolling speed: 720m/min (design speed)

2.4.4、 threading speed: 30m/min  

2.4.5、 max uncoiling speed: 300m/min

2.4.6、 max recoiling speed: 720m/min

2.4.7、 uncoiling tension:  Max 70kN

2.4.8、 recoiling tension:           Max 170kN

2.4.9、 working roll dimension: φ280/φ255×1380mm

2.4.10、 middle roll dimension: φ380/φ350×1350mm

2.4.11、 back up roll dimension: φ1050/φ990×1350mm

2.4.12、 uncoiler cone diameter:φ620/φ570mm(φ610mm)                                      

2.4.13、 recoiler cone diameter:      φ610/φ585mm

2.4.14、 stand colomn section:540×640=3456cm2

2.4.15、 working roll min openess: 20mm

2.4.16、 working roll positive/negative bending force: +300 kN/-180kN(single roll single side)

2.4.17、 middle roll positive bending force: 500kN(single roll single side)

2.4.18、 middle roll horizontal moving amount: ±150mm

2.4.19、 low pressure hydraulic system pressure: 10MPa

2.4.20、 roll bending hydraulic system pressure: 18.5MPa

2.4.21、 AGC系统压力system pressure: 21MPa


5、 main motors

5.1、 main rolling mill motor:N=2000kW, 2 units

5.2、 left and right recoiler: N=1250kW         4 units

5.3、 uncoiler motor:N=475kW,  1 unit


scope of supply

1.1、 entry car

1.2、 uncoiler

1.3、 straightening machine

1.4、 left recoiler

1.5、 run out before mill

1.6、 guiding device before mill

1.7、 squeeze and anti-fluctuation roll before mill  

1.8、 6-roll reverse cold rolling mill

1.9、 accident shear

1.10、 protection device before and after mill

1.11、 squeeze and anti-fluctuation roll after mill

1.12、 guiding device after mill

1.13、 right recoiler

1.14、 run out after mill

1.15、 back up roll changing device

1.16、 working roll and middle rolling changing device

1.17、 connecting shaft device

1.18、 compound reducer

1.19、 motor taker

1.20、 foundation bolts

2、 fluid equipment

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