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4-roller Plate Rolling Machine

Four roll plate rolls are more precise, productive, versatile, faster, safer and easier to operate than three roll machines.

Product Details

4-roller plate rolling machine

Model: W12 Hydraulic 4 Roller Plate Rolling Machine
Description
Bending Lengths: 1000mm-3000mm
Bending Thicknesses: 6mm-60mm
Four roll plate rolls 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 60mm thick.
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.

Advantages
1. Flat zone of the part is minimized
2. Pre-bending, conical bending and ellipse bending can be done easily
3. Double pre-bends (both bends) in one pass
4. Hydraulic and electrical systems have been safeguarded from overloading and require minimum maintenance. Hydraulic and electrical components are modular and designed according to world standards.
5. The sheet reference is maintained by tightening of top and bottom rolls
6. Most desirable bending operation for PLC applications
7. More efficient for cycle times
8. User friendly operation with less dependence on operator competence

Features
1. 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.
2. 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.
3. 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 (see
Figure 1 in diagram). This eliminates the need for someone to assist the operator.
4. 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.
5. Four roll machines do not require the operator to remove, flip, and then try to square and reposition 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% more efficient than three roll IP machines, and allows a cylinder to be rolled to the required diameter immediately following pre-bending.
6. Bending the back edge takes place after the cylinder is rolled, for a one direction, single pass operation.
7. 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. (Standard feature on JMT rolls.)
8. Four roll machines are the only type of plate rolls that can effectively make use of NC and CNC controls because of the constant clamping and driving of the material during all steps of rolling. Bending difficult shapes like polycentric or elliptic work pieces can be easily done with SIECC four roll machines.

Details

    

    

    

    

Parameter

Type

Max. Rolling Thickness

Max. Rolling Width

Yield Limit

Rolling Spped

Min. Diameter full-loaded

Up 

Roll Diameter

Down Roller Diameter

Max.

Diameter of Side Roller

Max. Stroke of Side Roller

Adjustment Speed of Side Roller

Main Motor Power

mm

mm

mm

m/min

mm

mm

mm

mm

mm

Kw

Kw

W12-25× 2000

25

2000

245

4

800

350

320

280

240

80

22

W12-20× 2500

20

2500

245

4

640

350

320

280

240

80

30

W12-30×2000

30

2000

245

4

1000

400

360

300

240

80

37

W12-25×2500

25

2500

245

4

800

400

360

300

240

80

37

W12-35×2000

35

2000

245

4

1200

420

380

330

210

80

37

W12-30×2500

30

2500

245

4

1000

400

360

320

230

80

37

W12-40×2000

40

2000

245

4

1400

480

400

340

420

80

45

W12-45×2000

45

2000

245

4

1600

500

450

400

380

80

45

W12-35×2500

35

2500

245

4

1200

480

400

340

420

80

45

W12-40×2500

40

2500

245

4

1400

500

450

400

380

80

45

W12-45×2500

45

2500

245

4

1600

530

480

420

450

80

63

W12-35×3000

35

3000

245

4

1200

500

450

400

380

80

45

W12-45×3000

45

3000

245

4

1600

560

500

450

450

80

63

W12-55×2500

55

2500

245

4

2000

600

550

480

500

78

75

W12-55×3000

55

3000

245

4

2000

620

560

490

500

78

75

W12-65×3000

65

3000

245

4

2400

670

600

530

550

78

110

Notes

Suggested for high number control needs, Detailed Material/ max capacity/ common capacity needed


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