1450mm 12-Roller Reversible Cold-Rolling Mill

1. Application of machine group
It is used to manufacture cold-rolling galvanization base plate, tin coating base plate and other precise cold-rolling material, 430 stainless steel and etc.

2. Specifications and parameters of machine group

2.1 Form of rolling mill of main technological parameters of the main mill:
12-roller single-machine full-hydraulic reversible cold-rolling machine
Size of the working roller: Φ 100~Φ 120× 1450mm
Material: Cr12MnVCo
High-speed steel: 9Cr2Mo
Size of middle roller: Φ 215~Φ 225× 1450mm
Material: 9Cr2Mo
Backing bearing roller:
(roller diameter× Quantity/each)Φ 406.4× 6× 4, Φ 406.4× 5× 2
Drive motor of main mill:
Power: 2000Kw, Rated voltage: 660Vdc,
Rated revolation: 350~900 rpm
Maximum rolling pressure: 9000KN
Rolling speed: ≤ 600m/min
Precision of speed: Stabilized state: ± 0.1%
Maximum acceleration: 0.4m/s2
Maximum deceleration for accident: 1.5m/s2
Deceleration for fast stop: 1.0m/s2
Deceleration for normal stop: 0.2m/s2
Deceleration ratio:
For low speed 1.818: 1, For high speed 1.066: 1

2.2 Main technological parameters of left/right coiling machines:
Tension of the coiling machine: ≤ 250KN
Tension precision:
Static state: ± 3%; Dynamic state: ± 5%
Drum of coiling machine: Φ 510mm
Driver motor of coiling machine
Power: 1500KW
Rated voltage: 660Vdc
Rated revolution: 350~1000rpm
Speed ratio of reducer:
For low speed: 5.79: 1
For high speed: 3.01415: 1

2.3 Decoiling machine
Decoiling tension: 60KN
Decoiling speed: 3m/s
Drum diameter: Φ 585~Φ 610m
Drum of decoiling machine with external support
Motor of decoiling machine: 355KW
Pressure of hydraulic system: 8MPa
Speed ratio of decoiling machine:
Seat for storing steel tape of the decoiling machine

2.4 Working mode of machine group: Coiling and reversible rolling

2.5 Precision of stopping the machine: ≤ 30mm

2.6 Technology lubrication: Emulsification liquid system