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| Φ800×1350 two-roll skinpass machine set with mirror polisher |
Type and usage
1.1 Type:for Φ700×1350 two-roll skinpass machine set with mirror polisher
1.2 Usage:Used for skin pass, pulling & straightening and mirror polishing of stainless steel strip
1、Process flow
loader→uncoiler→1# pinch roller→1# hydraulic shear→welding machine→1#support roller→1# tension S roller set→two-roller skin pass machine→Double pulling & double straightening machine→2# tension S roller set→2# support roller→2# hydraulic shear→2# pinch roller→Floating recoiler→Unloader
2、Work scope
Material: soft stainless steel201、304
Specification: 0.25～1.2×1250 mm
3、Input tolerance confirm to Chinese standard
Coil size: Max. outside diameter: 1800mm
Inner diameter: 510mm
Max, coil weight: 30Tons
Max. rolling force: 8000KN
Skin pass speed: ≤180 m/min
Recoiling speed: ≤180 m/min
Recoiling force: 70 KN
Recoiling drum’s sizing diameter: max, 510mm Min. 480mm
Operative line direction: from left to right
Total installed capacity: about 1300KW
4、Composing
4.1 Loader and unloader two pcs
Max load: 30t
Max. stroke of horizontal movement: 2200mm
Speed of horizontal movement: 70mm/s
Lift stroke: 700mm
Lift speed: 70mm/s
The horizontal movement of the loader is perforemed by the motor, and the lift is performed by the oil cylinder.
4.2 Uncoiler one pc
Un-coiler is the slider structure, which is set on the left side. Mainly consists of the body, the DC motor, pressing device, cantilever support, base and etc.
Un-coiling motor type: Z4-315-32
Power: 252 KW
Speed: 750/2250 rpm
Voltage/current: 440 V/698 A
Reducer: central distance: 1000 mm
Drum size: Ø520～Ø490×1350 mm
4.3 pinch roller one pc
The pinch rollers is the two-roll structure, mainly consists of the pinch rollers, machine frame, bearing housings, oil cylinder, oil motor, base and etc.
Upper pinch roller specifications: Ø 220 × 1350 mm (polyurethane wrapped)
The lower pinch roller specification: Ø300×1350 mm (polyurethane wrapped)
Hardness: HS85-90
4.4 1# hydraulic shear one pc
Mainly used for shearing head and tail of the strip, and removing & separating between coil and coil.
Shear thickness：0.25～1.2mm
Shear width: 1250mm
Blade width：1350mm
4.5 Welding machine one pc
Used for connection between head and tail
4.6 tension S roller set one pc
Set at inlet side, to increase tension at the inlet side of the machine, and to ensure smooth effect of strip. Mainly consists of S roller, reducer, DC motors, pressing rollers, base and etc.
S roller size: Ø900×1350 mm (polyurethane wrapped) 2pcs
Rubber hardness: HS85-90
Upper S roller’s motor type: Z4-250-31
Power: 132 KW
Speed: 1000/2000 rpm
Voltage/current: 440 V/334 A
Reducer（I）: NGW 102
Lower S roller motor（II): type: Z4-280-21
Power: 200KW
Speed: 1000/2000 rpm
Voltage/current: 440 V
Reducer Ⅱ type:NGW112
Pressing roller size: Ø150×1350 mm (polyurethane wrapped) 1pc
Rubber hardness: HS85-90
4.7 Two roll skin pass machine
2-roll skin pass mill is a core of system. It works with S-type tension rolls 1# and 2# to flatten strips under the action of tension. It mainly consists of working rolls, frame, hydraulic APC pressure unit, carrier roll, roll cleaner (for roll cleanness), universal spindle, reduction box, DC motor, hydraulic roll changing unit, seat and other components.
Main motor: type: Z4-315-42
Power: 355 KW
Speed: 600/1600 rpm
Voltage/current: 440 V
Reducer type: ZLY500
Drive mode: by lower work roll
Work roll: body diameter: 800mm
Body length: 1350mm
Material:9Cr2Mo
Hardness: HRC63～65
Oil cylinder: cylinder diameter: 460mm
Stroke: 60mm
System pressure: 25 MPa
Working pressure: 21 MPa
Machine frame size: 400×450 mm2
4.8、Double pulling & double straightening machine one pc
1.Double bending roller system
Upper bending roller set
Φ30work roll 1350 mm 2pcs
Φ40 intermediate roll 1350 mm 4pcs
Bending support roller: diameter of backing bearing：60mm
Adjusting mode: mechanically
Φ30 work roll 1350 mm 2pcs
Φ40 intermediate roll 1350 mm 4pcs
Upper roller: worm gear, gear reducer drive.
Lower roller: worm gear, gear reducer drive.
2.Double straightening roller system
Upper straightening roller system
Φ75 work roll 1350 mm 1pc
Backup roll assembly few of
Adjusting mode: Motor drives the worm gear and worm screw for adjustment of lifter
Lower straightening roller seat
Φ55 work roll 1350 mm 1pc
Φ40 intermediate roll 1350 mm 2pcs
Backup roll assembly few of
Adjusting mode: Motor drives the worm gear and worm screw for adjustment of lifter
4.9、tension S roller set one set
Set at outlet side, to increase tension at the outlet side of the machine, and to ensure smooth effect of strip. Mainly consists of S roller, reducer, DC motors, pressing rollers, base and etc.
S roller size: Ø900×1350 mm (polyurethane wrapped) 2pcs
Rubber hardness: HS85-90
Upper S roller motor: type: Z4-250-42
Power: 132 KW
Speed: 1000/2000 rpm
oltage/current: 440 V
Reducer Ⅰ type：NGW 102
S roller motor II model：Z4-280-21
Power: 200kw
Speed: 1000/2000 rpm
Voltage/current: 440 V
Reducer Ⅱ type:NGW112
Pressing roller size: Ø150×1150 mm (polyurethane wrapped) one pc
4.10、 pinch rollerbone pc
The pinch rollers is the two-roll structure, mainly consists of the pinch rollers,racks, housings, oil cylinder, oil motor, base and etc.
Pinch roller size: Ø210×1350 mm (polyurethane wrapped)
The lower pinch roller specification: Ø300×1350 mm (polyurethane wrapped)
4.11、 hydraulic shear one pc
Mainly used for shearing head and tail of the strip, and removing & separating between coil and coil.
Shear thickness:
Blade width：1350mm
Shear width: 1350mm
4.12、steering roller one pc
The steering roller is a single roller steering structure, to help re-coiler with recoiling
Steering roller size: Ø295×1350 mm (Chrome plated)
4.13、 Re-coiler one pc
Set at the outlet side, and played the role of recoiling, and perform recoiling of strip with cooperation of 3 # tension S roller. At the same time, it make establishment of front tension, constant tension and speed trace display.
Re-coiler is seamless hydraulic sizing structure, mainly consists of re-coiler body, DC motors, EPC device, pressing device, pusher, floating base, cantilevered support and other components.
Re-coiling motor: type: Z4-280-32
Power: 160 KW
Rotation speed: 680/1600 rpm
Voltage/ Current:440 V
Reducer central distance: 1000 mm
Solid drum specification:Ø520～Ø490×1350 mm
EPC system accuracy: not more than ±1 mm
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