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1. Competitive price 2.Innovative design, 3. High-quality machine, 4. Attentive service, 5. A strong technique team - details see: https://www.machineto.com/cnc-4-roller-hrdraulic-rolling-machine-plate-bending-machine-10123298

Working principle:

1. The top roller makes rotation movement drove by hydraulic motor

2. The down roller makes rotation drove by hydraulic motor as well as making up-down movement drove by hydraulic cylinder.

3. The side rollers make arc swing movement drove by hydraulic oil cylinder.

Rolling shapes:

Technical features

1. Adopt the unique beforehand decompression technology, effectively avoid hydraulic impact, improve the lifetime of pipeline and the seal.

2. Hydraulic element selects the import high quality products, guarantee the stability of the hydraulic system.

3. All hydraulic system input, outlet are set with corresponding control point, easy for maintenance and fault inspection. Oil pump adopt underneath type, positive pressure oil absorption. At the same time the filter and liquid ometer are equipped with hair-device, it can automatic alarm the disturbance display. The hydraulic station is set independent outside of machine, easy for maintenance, also it’s away from the heat source.

4. Production system strictly obey the international, line standard. The radius of bent tube is reasonable, and not less than 90 °, smooth transition, effectively avoid the impact and vibration

5. System design full consideration of high efficiency and energy saving, reducing power waste, reduce heat source.

6. Equipped with high precision oil absorption and oil return filter, in order to ensure the cleanliness of the oil system.

7. Provide rolling machine hydraulic system common fault phenomenon and elimination method.

8. In order to ensure the manufacturing quality of hydraulic system, the system produce according to the hydraulic professional manufacturers and National GB3766-83 "hydraulic system general technical conditions”

9.The tank is cleaned by the shot blasting, pickling and surface cleaning, the walls is coated oil varnish to make sure the cleaning of tank. There is the air filter in the fuel oil tank place to make sure the function of the oil filter and ventilation. There is equipped with the fine filter on the oil suction pipe end and way for tubing.

10. Hydraulic system normal operating temperature range is15°C~65°C. It can be automatic heating through the electric heater when the temperature is less than15°C. It can control, the oil temperature through the cooler when the temperature is more than65°C. It’s suitable for the requirements of the system.

Technology characteristics

1.Swing guides

The system is based on the side rolls movement that is “hinged” on a strong central pin, the movement is there fore a circular movement around this central hinged point, without any linear friction.Structure diagram below graph:

2. No frame deformation

Adopt the planet oscillating system, has enables the machine to “hold” the traction forces inside the structure. No friction, high strength and precision. High roll motion rigid and stability, fluent arc movement, small friction, guarantee absolute accuracy. Structure diagram below graph:

3.Small diameter shell

Side roll with a long arc section pressure plate upward to the upper roller, that make "tightly wrapped" the upper roller, in order to reduce springback of plate. But straight line guide bending of arc section is shorter so that can rolling smaller diameter of the cylinder (including the cone). Structure diagram is as below:

4.Free lubrication

5. High efficiency and energy saving technology

Low efficiency system is replaced by the new efficient approach (reduction gear, copper collar, gear belt, universal shaft, linear guide), hydraulic planetary drive direct coupling in press roller, no friction swing guide, no friction auto collimation bearing, multiple hydraulic power system. These the superlative technology application greatly reduce energy loss (idle work) so as to ensure energy (useful work) really used to coil. Energy saving technology is fully fit with international high standard.

6.Best pre-bending (shortest flat end)

The side roll “rounds” the plate edge starting their stroke from a more external position, swinging up during the raising phase as it nears the top roll. The plate edge is therefore“pre-bent” and“rounded” with a higher leverage arm, getting more strength on the material to be formed, more prebending power, greatly reducing the remaining flat end. The edge is therefore free from angles, peaks or straight line segments between bends, thanks to the longer rounded section. The flat end remaining will be aproximatley 40-50% shorter than on other rolls with linear guides.

7.Greater Power is available (bending capacity of the machine)

Bending power increase is distributed homo geneously irrespective of shell diameters, even during pre-bending.

During the swinging movement the roll raises up with a beneficial and constant positive leverage. This geometric movement multiplies the power of the hydraulic cylinder thanks to the effect of leverage that concentrates all the bending power in the pre-bending area thus reducing the length of the flat end.

Technical parameters

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