1450 4hi Reversible Single Stand Cold Rolling Mill/Production Line/Machine/Equipment

1. Brief Introduction of 1450 4hi reversible single stand  cold rolling mill/production line/machine/equipment
The production of this unit is to roll hot rolled coils with the thickness of 1.5~5.3mm into high precision cold rolled coils with the thickness of 0.2~2.0mm through several time of rolling. The scale of the cold rolling production line is a production of 250 thousand tons of cold rolled steel coils per year. It adopts the single-stand 4-roll reversible cold rolling mill. The work roll of the rolling mill is equipped with positive and negative bending. The uncoiler is equipped. Both front and rear frames are equipped with coiler, thickness gauge, laser velocimeter etc., which can realize large tension rolling and guarantee high-speed and stable production with specified thinness.





2. Technical specification

1)  Material:              ST22, STW22, ST3F…

Material:
   Carbon construction steel, low alloy steel
   Material performance:          σs≤360N/mm2 σb≤560N/mm2
Thickness:                               1.5~4.0 mm
Width:                                      700~1300 mm
Coil ID:                                     Φ610 mm
Coil OD:                                   Φ900~Φ2000 mm
Max coil weight:                        26t
Unit coil weight:                         Max23Kg/mm
Coil tower:                                 ≤30mm
Strip convexity:                          ≤60μm
Strip cross section wedge:         ≤40μm
Strip surface bulge:                    ≤12μm
Camber:                                     ≤5mm/2000mm
Width tolerance nominal width:    0~+10 mm
 
2) Output product

Thickness:                                   0.20~1.5mm
Width:                                          800~1250 mm
Coil ID:                                         Φ610mm
Coil OD:                                       Φ900~Φ2000 mm
Max coil weight:                            26t

3) Output product accury:
See technical file 12-seller guarantee item, key performance indicator and examine method
Line product mix (protocol)

3. Main technical data

1. 
   Rolling mill specification:            F 1250/F400´ 1450  mm
2. 
   Max rolling pressure:               18000 KN
3. 
   Max rolling torque:                140 KN.m
4. 
   Max threading speed:              30  m/min
5. 
   Max uncoiling speed:               500  m/min
6. 
   Max rolling speed:                 0~700~1200  m/min
7. 
   Uncoiling tension:                 100~10  KN
8.  

                                  120~12KN( II Gear V≥ 700m/min)
Coiling tension:         210~21KN(I gear V<700 m/min)
                                120~12KN(II gear V≥ 700m/min)

1. 
   Max coiling speed:                 1260  m/min
2. 
   Single side bending force of the work roll(positive/negative): 625/420  KN

4. Line main motor power

Main rolling mill motor 1400kw 400/1100 rpm total 4 sets
Left, right tension reel motor  1250kw 310/1050 rpm each two sets
Pay-off reel motor 510kw 375/1250 rpm one set
Straighter motor 30kw one set
Entry, exit deflector roll motor 30 kw each one set (AC motor)



For more information, please contact us at any time.