Four Rolls Plate Bending Machine - Plate Rolling Machine - Hi-sea

Four Rolls Plate Bending Machine

Four Rolls Plate Bending Machine

1. Four Rolls Plate Bending Machine Description

The four rolls plate bending machine can pre-bend the ends of plate, feed steel plate just one time, and then to pre-bend the ends of plate, roll the workspace to drums shape, don’t need to return. The working up roller is the main drive roller, the down rollers and side roller use hydraulic drive to do elevate movement. And move controlled by computer, horizontal adjust automatic, show by screen, the synchromesh accuracy attached ±0.2mm. Turnover and resume of flip-bearing used hydraulic to drive. Installed balance system on the ends of up roller, so it’s easy to unload work piece. Adopt mobile independence operator table, so can operator at any time and any place, the machine has safety interlock device. For a world it has high technology, overall function, high accuracy and easy to operator. So it’s the model rolling machine, it’s the first choice in energy, transport, fossil oil, chemical, shipbuilding, steel and some other industries.
This machine composed of four working rollers, left and right rack of machine, base board, rolling rhombus tube function, turnover part, device part, sensor part, hydraulic system, electrical system and so on.
2. Four Rolls Plate Bending Machine Hydraulic System
The hydraulic system of this device has the following functions: drive oil vat do elevating movement, drive the sides rollers do inclined elevating movement, and drive the turnover oil vat do elevating movement. With the help of electrical liquid commutate valve to control the down rollers to do elevating movement and the sides’ rollers to do inclined elevating movement. So the working rollers can stop on arbitrary position.
The circuit of turnover oil vat installed one-way throttle valve, it can adjust the speed of executive mechanism. The hydraulic system design reasonable, work good and allocate high accuracy filter to ensure oil clear. The system pipeline arrange regularity, operator easy, act flexibility. All above these ensure the system no percolation.
The main valves of hydraulic system choose from Taiwan. The pump, filter, motor and seal element choose from native and foreign famous company, so all these have high performance and quality. All components done test, sift, lower the breakdown do our best.

3. Main Components of Four Rolls Plate Bending Machine


Component Name




Work roller

Up, bottom, side rollers

South steel


Ends roller of roller

Roller bearing


Main motor

YZR series motor



Hydraulic valve



Seal washer of oil vat

YX series seal washer



High voltage soft pipe







Touch screen




photoelectric encoder


4. Four Rolls Plate Bending Machine Technical Parameters

The technical parameter is optional, we can accommodate your requirements, please don’t hesitate to contact us!
The thickness of coiled plate: 10mm
Pre-bend thickness: 8 mm
The width of the coiled plate: 2500mm
Min diameter of the max model: 800mm
Yielding limit of plate: 245Mpa
Diameter of up roller: 330mm
Diameter of down roller: 310mm
Diameter of side roller: 230mm
Rolling speed: about 4m/min
Hydraulic system pressure: 18Mpa
Main motor power: 15Kw
Machine weight: 14.5T

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