The W12-50×3000 four-roll plate rolling machine uses controlled roll positioning to clamp, pre-bend and roll heavy plate. The plate remains securely held during the forming cycle, supporting accurate alignment and efficient handling of thick carbon-steel and stainless-steel workpieces.
Key Benefits
Top support arm for large-diameter plate rolling
50 mm carbon-steel and 40 mm stainless-steel maximum thickness ratings.
Four-roll geometry supports efficient alignment, pre-bending and rolling.
NC touch-screen control for roll-position monitoring and repeatable operation.
Hydraulic drop end and optional overhead support simplify large-cylinder handling.
Heavy welded frame and 42CrMo alloy-steel rolls for high forming loads.
Technical Specifications
Model
W12-50×3000
Maximum plate thickness
50 mm carbon steel; 40 mm stainless steel
Maximum pre-bending thickness
40 mm carbon steel; 35 mm stainless steel
Maximum plate width
3000 mm
Working roll length
3100 mm
Top roll diameter
610 mm
Bottom roll diameter
560 mm
Side roll diameter
480 mm
Minimum bending diameter
1150 mm
Reference yield strength
245 MPa
Bending speed
4 m/min
Main motor
55 kW
Standard power supply
380 V / 3 phase / 50 Hz
Working temperature
-20 to 45 C
Capacity values are based on the customer-supplied technical document. Final capability must be confirmed against material grade, yield strength, plate width, thickness and target diameter.
Working Principle
Four-roll plate rolling and pre-bending process diagram
The bottom roll lifts to clamp the plate against the powered top roll. The side rolls then move to pre-bend each edge and form the cylinder while the plate remains controlled between the rolls.
Typical Applications
Pressure vessels
Boilers and heavy tanks
Shipbuilding
Petroleum and chemical equipment
Power-generation structures
Large industrial cylinders
Main Components and Configuration
NC touch-screen interface for a four-roll plate rolling machine
42CrMo alloy-steel work rolls
Hydraulic motors and planetary gearboxes
PLC and NC touch-screen control
Hydraulic drop-end and plate-support systems
Automatic centralized lubrication
Named component brands and exact control configuration are subject to the final technical agreement and availability at the time of order.
How to Select the Right Plate Rolling Machine
For an accurate machine selection, provide the plate material, yield strength, maximum thickness, working width, minimum finished diameter, production volume and any cone-rolling or support-device requirements.
Frequently Asked Questions
Can this machine be configured for a specific cylinder diameter?
Yes. The roll geometry and tooling must be checked against the material, thickness, width and required finished diameter before production.
Is the machine suitable for stainless steel?
Stainless-steel capacity is listed where it is confirmed in the technical document. Contact Prima with the exact grade and dimensions so the final configuration can be verified.
Can feeding and workpiece supports be added?
Support devices and feeding options can be evaluated according to plate size, workpiece weight and production workflow.
W12 Hydraulics Plate Rolling Machine With 4 Rolls Performance Features
It’s easy to operate, rich shape bend;
CNC control, digital readout for position of each rollers. High accuracy and precision circle;
Full hydraulic drive, High eficiency and energy saving, the drive power is equivalent to the traditional 60%;
Once forming,the productivity is higher 50%- 80% than three roller bending machine;
Aligning the material is convenient and accurate, avoid the wrong side phenomenon;
Cone bending device;
Permanent lubrication (bearing life without refueling);
The top and bottom roller clamp the plate during rlling without slipping;
The minimum bending diameter of the cylinder can get to 1.1 times the diameter of the top roller, the surplus flat edge smaller than any type of other plate rolling machine;
The carrying device and feeding device and support device can be installed easily;
CE certificate.
W12 Hydraulics Plate Rolling Machine With 4 Rolls Working Principle
W12 Hydraulics Plate Rolling Machine With 4 Rolls Technical Parameters
Model
Max.Bending thickness
Pre-bending thickness
Max. Working length of rolls
Yield limit
Top roller diameter
Bottom roller diameter
Side roller diameter
Main power
(mm)
(mm)
(mm)
(Mpa)
(mm)
(mm)
(mm)
(Kw)
W12-4×2000
4
3.5
2050
245
160
140
120
3
W12-6×2000
6
5
2050
245
190
170
150
4
W12-8×2000
8
6.5
2050
245
210
190
170
5.5
W12-10×2000
10
8
2050
245
230
210
190
7.5
W12-12×2000
12
10
2050
245
270
250
210
11
W12-16×2000
16
13
2050
245
300
270
220
11
W12-20×2000
20
16
2050
245
330
300
240
11
W12-25×2000
25
20
2050
245
360
330
250
15
W12-30×2000
30
25
2050
245
390
360
300
18.5
W12-35×2000
35
28
2050
245
430
390
330
22
W12-40×2000
40
32
2050
245
460
420
360
30
W12-45×2000
45
36
2050
245
510
460
390
37
W12-50×2000
50
40
2050
245
550
510
420
45
W12-4×2500
4
3.5
2550
245
190
170
150
4
W12-6×2500
6
5
2550
245
210
190
170
5.5
W12-8×2500
8
6.5
2550
245
230
210
190
7.5
W12-10×2500
10
8
2550
245
270
250
210
11
W12-12×2500
12
10
2550
245
300
270
220
11
W12-16×2500
16
13
2550
245
330
300
240
11
W12-20×2500
20
16
2550
245
360
330
250
15
W12-25×2500
25
20
2550
245
390
360
300
18.5
W12-30×2500
30
25
2550
245
430
390
330
22
W12-35×2500
35
28
2550
245
460
420
360
30
W12-40×2500
40
32
2550
245
510
460
390
37
W12-45×2500
45
36
2550
245
550
510
420
45
W12-4×3000
4
3.5
3100
245
210
190
170
5.5
W12-6×3000
6
5
3100
245
230
210
190
7.5
W12-8×3000
8
6.5
3100
245
270
250
210
11
W12-10×3000
10
8
3100
245
300
270
220
11
W12-12×3000
12
10
3100
245
330
300
240
11
W12-16×3000
16
13
3100
245
360
330
250
15
W12-20×3000
20
16
3100
245
390
360
300
18.5
W12-25×3000
25
20
3100
245
430
390
330
22
W12-30×3000
30
25
3100
245
460
420
360
30
W12-35×3000
35
28
3100
245
510
460
390
37
W12-40×3000
40
32
3100
245
550
510
420
45
W12-50×3000
50
40
3100
245
610
560
480
55
W12-60×3000
60
48
3100
245
670
620
520
75
W12-50×3000 Four-Roll Plate Rolling Machine
W12 plate rolling machine with overhead support
The W12-50×3000 four-roll plate rolling machine uses controlled roll positioning to clamp, pre-bend and roll heavy plate. The plate remains securely held during the forming cycle, supporting accurate alignment and efficient handling of thick carbon-steel and stainless-steel workpieces.
Key Benefits
Top support arm for large-diameter plate rolling
50 mm carbon-steel and 40 mm stainless-steel maximum thickness ratings.
Four-roll geometry supports efficient alignment, pre-bending and rolling.
NC touch-screen control for roll-position monitoring and repeatable operation.
Hydraulic drop end and optional overhead support simplify large-cylinder handling.
Heavy welded frame and 42CrMo alloy-steel rolls for high forming loads.
Technical Specifications
Model
W12-50×3000
Maximum plate thickness
50 mm carbon steel; 40 mm stainless steel
Maximum pre-bending thickness
40 mm carbon steel; 35 mm stainless steel
Maximum plate width
3000 mm
Working roll length
3100 mm
Top roll diameter
610 mm
Bottom roll diameter
560 mm
Side roll diameter
480 mm
Minimum bending diameter
1150 mm
Reference yield strength
245 MPa
Bending speed
4 m/min
Main motor
55 kW
Standard power supply
380 V / 3 phase / 50 Hz
Working temperature
-20 to 45 C
Capacity values are based on the customer-supplied technical document. Final capability must be confirmed against material grade, yield strength, plate width, thickness and target diameter.
Working Principle
Four-roll plate rolling and pre-bending process diagram
The bottom roll lifts to clamp the plate against the powered top roll. The side rolls then move to pre-bend each edge and form the cylinder while the plate remains controlled between the rolls.
Typical Applications
Pressure vessels
Boilers and heavy tanks
Shipbuilding
Petroleum and chemical equipment
Power-generation structures
Large industrial cylinders
Main Components and Configuration
NC touch-screen interface for a four-roll plate rolling machine
42CrMo alloy-steel work rolls
Hydraulic motors and planetary gearboxes
PLC and NC touch-screen control
Hydraulic drop-end and plate-support systems
Automatic centralized lubrication
Named component brands and exact control configuration are subject to the final technical agreement and availability at the time of order.
How to Select the Right Plate Rolling Machine
For an accurate machine selection, provide the plate material, yield strength, maximum thickness, working width, minimum finished diameter, production volume and any cone-rolling or support-device requirements.
Frequently Asked Questions
Can this machine be configured for a specific cylinder diameter?
Yes. The roll geometry and tooling must be checked against the material, thickness, width and required finished diameter before production.
Is the machine suitable for stainless steel?
Stainless-steel capacity is listed where it is confirmed in the technical document. Contact Prima with the exact grade and dimensions so the final configuration can be verified.
Can feeding and workpiece supports be added?
Support devices and feeding options can be evaluated according to plate size, workpiece weight and production workflow.
W12 Hydraulics Plate Rolling Machine With 4 Rolls Performance Features
W12 Hydraulics Plate Rolling Machine With 4 Rolls Performance Features
