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4 Roll Plate Bending Machine

4 Roll Plate Bending Machine
4 roll plate roller

Model

Max pre-bending thickness(mm)

Max bending thickness

(mm)

Diameter of upper roller

(mm)

Max plate width

(mm)

Main motor power

(kw)

W12-10*1500

8

10

250

1500

11

W12-12*2000

10

12

260

2000

15

W12-16*2000

12

16

275

2000

18.5

W12-20*2000

16

20

280

2000

18.5

W12-25*2000

20

25

350

2000

22

W12-30*2000

25

30

380

2000

37

W12-25*2500

20

25

390

2500

37

W12-30*2500

25

30

390

2500

37

W12-30*3000

25

30

480

3000

45

W12-40*3000

32

40

550

3000

55

W12-50*3000

40

50

610

3000

55

W12-60*3000

50

60

670

3000

75

W12-70*3000

60

70

730

3000

75

W12-80*3000

65

8

780

3000

90

W12-90*3000

75

90

820

3000

90

W12-100*3000

80

100

880

3000

110

4 roll plate roller

Superiority

Hydraulic-driven, high efficiency(driving power equivalent 60% traditional)

4 roll plate roller
4 roll plate roller

Permanent lubrication(during bearing life period without refueling)

Clamping pressure is adjustable(non-existence of skidding, productivity is 50%-80% more than traditional)

Description:

4 roll plate roller are more precise, productive, versatile, faster, safer and easier to operate than three roll machines. They are less dependent on operator competence. They are ideal for bending plates up to 100mm thick.

4 roll plate roller
W12-25×3100 4 roll plate roller

The fastest and most accurate bends are made by four roll machines. The plate is held securely in place between the top and bottom rolls while the side rolls move vertically to create the bend. The bottom roll moves up to hold the plate edge securely against the top roll while the side roll is raised to form an accurate pre-bend, minimizing the flat zone on the plate edge. Pre-bending on a three roll machine requires that plates be tilted down as they are being fed. In contrast, plates are loaded horizontally at the feed level for pre-bending on a four roll machine, which allows the use of horizontal motorized roller tables to help feed the plate.

4 roll plate roller
W12-25×3100 4 roll plate roller

Plate feeding can take place on either side of a four roll machine. If fed from only one side, they can even be placed up against a wall to save floor space.

The side rolls are positioned to the right and left of the bottom roll and are on their own axes. The independent axis of each roll helps make a perfect bend. The back side roll (at the far side of the feeding point) also functions as a back gauge to square the plate for proper alignment .This eliminates the need for someone to assist the operator.

The plate is kept square without slipping during both pre-bending and rolling because of the constant secure clamping of the top and bottom rolls.

4 Roll Plate Bending Machine
W12-25×3100 4 Roll Plate Bending Machine

Four roll machines do not require the operator to remove, flip, and then try to square the plate a second time after pre-bending, as is the case with three roll IP machines. Keeping the material in the machine makes four rolls 50 percent more efficient than three roll IP machines, and allows a cylinder to be rolled to the required diameter immediately following pre-bending.Bending the back edge takes place after the cylinder is rolled, for a one direction, single pass operation.Cone rolling is easier on a four roll machine. The side rolls can be tilted to establish the cone angle and the bottom roll can also be tilted to clamp and drive the plate.

4 Roll Plate Bending Machine
W12-25×3100 4 Roll Plate Bending Machine

Video: