4 Roll Plate Bending Machine
4 Roll Plate Bending Machine
4 Roll Plate Bending Machine
4 Roll Plate Bending Machine
4 Roll Plate Bending Machine
4 Roll Plate Bending Machine
4 Roll Plate Bending Machine
4 Roll Plate Bending Machine

4 Roll Plate Bending Machine

The 4 roll hydraulic plate bending machine is suitable for plates of a 2-100mm thickness and a 1000-6000mm width.
This roll plate bending machine is widely used in manufacturing barrels for pressure vessels, various machinery, hydro power and construction, among other industries. It also comes with a roundness calibration function. The top roll is driven by a hydraulic motor. The friction between the metal plate and the top roll drives the bottom roll and lateral roll rotation, and supplies the torque for bending plates. The bottom roll, lateral roll and drop end are all driven by a hydraulic oil cylinder. The bottom roll moves up and down, and the side roll moves in an arc. The bottom roll rises to clamp the plate, and the side roll tilts up to pre-bend the end of the plate.

Features:
1. The machine is easy to operate, and has multiple bending methods.
2. CNC control, digital display of the movement of each roll, a high bending accuracy and excellent roundness all add to the overall efficiency of the plate bending machine.
3. A full hydraulic drive makes the machine energy efficient: the driving power is 60% that of a traditional machine.
4. One stage bending, the productivity reaches 50-80% higher than a 3 roll bending machine.
5. Material alignment is convenient and accurate, allowing users to easily avoid misalignments.
6. With a cone bending device, it is easy to bend the cones.
7. The plate bending machine comes with a permanent lubrication technology. There is no need to lubricate throughout the bearing’s service life.
8. The top and bottom rolls clamp the plate during the bending process with no slipping.
9. The minimum bending diameter of the cylinder is 1.1 times that of the diameter of the top roll. The surplus flat edge is smaller than it is on any other type of pate bending machine.
10. The carrying device, feeding device and support device are all easily installed.
11. This roll plate bending machine is CE certified.

Optional Equipment:
1. Lateral and overhead supports for metal sheets of large diameters
2. Material feeding table
3. Oil cooling system
4. Polished roll

Model Max. Bending Thickness (mm) Max. pre-bending Thickness (mm) Working Length of Rolls (mm) Yield Limit (Mpa) Top roll Diameter (mm) Main Motor Power (KW)
W12-4x2000 4 3.5 2050 245 160 3
W12-6x2000 6 5 2050 245 190 4
W12-8x2000 8 7 2050 245 210 5.5
W12-10x2000 10 8 2050 245 230 7.5
W12-12x2000 12 10 2050 245 270 11
W12-16x2000 16 12 2050 245 300 11
W12-20x2000 20 16 2050 245 330 11
W12-25x2000 25 20 2050 245 360 15
W12-30x2000 30 25 2050 245 390 18.5
W12-35x2000 35 28 2050 245 430 22
W12-40x2000 40 32 2050 245 460 30
W12-45x2000 45 36 2050 245 510 37
W12-50x2000 50 40 2050 245 550 45
W12-4x2500 4 3.5 2550 245 190 4
W12-6x2500 6 5 2550 245 210 5.5
W12-8x2500 8 7 2550 245 230 7.5
W12-10x2500 10 8 2550 245 270 11
W12-12x2500 12 10 2550 245 300 11
W12-16x2500 16 12 2550 245 330 11
W12-20x2500 20 18 2550 245 360 15
W12-25x2500 25 20 2550 245 390 18.5
W12-30x2500 30 25 2550 245 430 22
W12-35x2500 35 28 2550 245 460 30
W12-40x2500 40 32 2550 245 510 37
W12-45x2500 45 36 2550 245 550 45
W12-4x3000 4 3.5 3100 245 210 5.5
W12-6x3000 6 5 3100 245 230 7.5
W12-8x3000 8 7 3100 245 270 11
W12-10x3000 10 8 3100 245 300 11
W12-12x3000 12 10 3100 245 330 11
W12-16x3000 16 12 3100 245 360 15
W12-20x3000 20 16 3100 245 390 18.5
W12-25x3000 25 20 3100 245 430 22
W12-30x3000 30 25 3100 245 460 30
W12-35x3000 35 28 3100 245 510 37
W12-40x3000 40 32 3100 245 550 45
W12-50x3000 50 40 3100 245 610 55
W12-60x3000 60 48 3100 245 670 75
  • Hydraulic system
  • Optional polished roll
  • Hydrocylinder
  • Hydraulic drop end

Maintenance and Inspection
1. Daily inspection items
Inspection of the hydraulic power box’s appearance
Inspection of oil in the power control box
Leakage of the pipeline system
Leakage of the pumps, valves, cylinders and the others

2. Periodic inspection items: 500-600 hours (60-75 days)
Detailed examination of the daily inspection items
Inspection of the hydraulic system actions, the functions at the maximum working pressure

3. Replace the working medium
Along with inspection of the oil in the power control box and adding oil according to the above daily inspection requirements, users should also change the oil completely each year. Before changing the oil, remove the cover of the hydraulic power box and clean the oil pump filter and the inside of the power control box.

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