1975 used 2200mm 2hi+ 4hi reverse hot rolling mill steel plate

used hot rolling mill

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1975 used 2200mm hot rolling mill steel plate

Stock No.: 544, it is written on 29/05/2023

product description
Technical Parameters

machine is made in 1975

2004 renovated

2015-016 stopped running

2hi reverse hot rolling mill electric pressing down

work roll size: OD1100/OD980*2350mm

max. rolling force: 20000KN

main motor: TBP3500-12/2800, 3500kw

input billet size:

80*(1100-2500)*(6000-10000)mm

input billet weight: less than 5.5ton

4hi reverse fin hot rolling mill electric pressing down

rolling force: 50000KN

rolling torque: max. 2*1700KN-M

rolling speed: 0±5.8m/s

the max. openness: 130mm

main motor: N=2*4000kw (AC) n=0±80/120 rpm

Rolling mill static pressure relies on rigidity: 8000KN/mm

back up roll size: Φ1660/Φ1800*2700mm

work roll size: Φ800/Φ850*2800mm

hydraulic AGC

hydraulic AGC cylinder working force: 25MPa

back up roll balance cylinder working pressure: 16MPa

work roll balance cylinder working pressure: 16MPa

work roll bending cylinder working pressure: 25MPa

high pressure descaler system pressure: 18MPa

Rolling elevation: +900mm

main drive type: Cross head universal joint shaft

Rotary diameter: Φ890mm

Maximum working angle: 4︒

Stand roller type: separate transmission (two in front and two in front and two in rear)

scope of supply:

Front extension roller table, Rolling mill front working roller table, Rolling mill front pushing machine, stand roll, 4hi reverse rolling mill, stand 2 pcs, hydraulic AGC, Subscript height adjustment device, Descaling and guide device, balance device, Rolling mill piping, Proximity switch device, Main drive and balancing device of rolling mill, Work roll changing machine, back up roll changing machine, Rear working roller table of rolling mill, Rolling mill front and rear push bed, Rolling mill rear extension roller table

4hi reverse hot rolling mill hydraulic AGC specification:

Rolling force: max 50000KN

Opening degree: 130mm

Pressure gauge: 2x30000 KN

Rolling speed: 0~3.56~5.33 m/s

Support roller specifications: φ 1800/ φ 1660 × 2700mm

Support roller material: 45Cr5NiMoV

Dynamic pressure oil film bearing of support roller: 64 ″ -75KL

Work roll specifications: φ 850/ φ 800 × 2800mm

Work roll material: Infinite chilled cast iron roll

Section area of stand: 8300cm2

Rolling mill stiffness: approx. 8000 kN/mm

Pressing speed: 15/30mm/s

Hydraulic AGC cylinder diameter: Φ /Φ Mm

Pressing stroke: 150 mm

Pressing speed: mm/s

Working pressure: 25 MPa

High pressure water in front of the machine: descaling pressure 18 MPa

Axle clamping cylinder (suspension type): Φ 250/ Φ 140x100 mm

Shaft end baffle cylinder: Φ 80/ Φ 45x80 mm

Working pressure of hydraulic cylinder: 16 MPa

Roller balance cylinder: Upper working roller balance: Φ 200/ Φ 140x500 mm

Lower work roll balance: Φ 170/ Φ 125x200 mm

Upper support roller balance cylinder: Φ 450 mm (plunger)

Working pressure of balance cylinder: 16 MPa

Working pressure of bending roller cylinder: 25MPa

Main motor 2 × 5000KW 0-80-120rpm

below weight is all approximate.

No.	name	weight ton	qty	sub-total ton
1	2500 mm 4hi roughing mill	760	1	760
2	Rolling mill main transmission device	100	1	100
3	Rolling mill stand roll	30	1	30
4	Rolling mill intermediate shaft	54	1	54
5	Roll changing machine	400	1	400
6	Extension roller table before and after rolling mill	110	2	220
7	Front and rear working roller table of the rolling mill	110	2	220
8	Rolling mill front and rear push bed	86	2	172
				1,956

output product parameter:

plate thickness	≥6-10	＞10-25	＞25-40
Ordinary carbon and general strength ship plates width mm	1700-2200	1700-2500	1700-2200
Low alloy and high-strength ship plates width mm	1700-2200	1700-2500	1700-2200
Special-use plate width mm	1700-2200	1700-2500
NOTE: 1. thickness 6-10mm,max. plate length is 10,500mm; the rest length are 12,000mm 2.Thickness of rough edge plate: 60mm

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