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Steel Plate Roll Machine Manufacturer

PRT 3-Roll Plate Rolling Machine

A small lower roller center distance is conducive to the pre-bending of a thin plate with a small diameter, which can meet the pre-bending of various diameters, the upper roller can be used as a traditional bending machine, which can achieve the cylinder alignment, in the same way, the thick plate cone can be made through several times rolling. The workpiece unloading is easier after completion.

3 Roll Top Roll Horizontal Movement Bending Roll PRT

PRT Top Roll Horizontal Movement Plate Bending Machine adopts Top Roll Horizontal Movement (mechanical transmission), and Vertical Movement (hydraulic transmission), driven by the lower rolls, electric centralized control operation system. The NC PRT 3 roll bending rolls can complete the pre-bending and roll of both ends of the metal plate in one roll bending process after feeding the workpiece, and in the work of making cylindrical and arc-shaped workpieces, it can also perform certain shaping and leveling on the metal sheet, which has the effect of direct pre-bending, saving trouble and material, and is equipped with NC system control to improve the degree of automation.

The PRT 3 Roll Plate Rolling Machine is the best solution for bending plates with thicknesses between 50 mm and 200 mm and widths from 1000 mm to 10000 mm.

  • Bending Thickness: 50-200mm
  • Pre-bending Thickness: 40-160mm
  • Bending Width: 1000-10000mm
3-roll plate bending machine
PRT Top Roll Horizontal Movement 3 Roll NC Plate Bending Machine
plate rolling machine
plate rolling machine

Features

  • NC Control: The amount of Top Roll Ram Down is automatically calculated by inputting application data, which reduces workers’ operation.
  • High-Precision Pre-Bending: Being formed in the procedure that Top Roll moves Front/Rear direction, the ends of the material plate are firmly bent as well as the one done by the ordinal press.
  • Precise Circularity and Cylindricity: Top Roll Crowning and adjustment of Back-Up Roll help correct deflection of both Top Roll and Back-Up Rolls to be more precise circularity and cylindricality of applications, which reduces the time of post-procedure.
  • High Rigid Mechanical Structure: The frame is rigidly designed based on pressure capacity and width of application materials. Top roll ram-down mechanism and rigid & compact lower frame simplify foundation construction.
  • Abundant bending shapes: It has different shapes such as rolled O-shaped, U-shaped, multi-section R, etc.
steel plate rolling machine
steel plate rolling machine
steel plate rolling machine
steel plate rolling machine
steel plate rolling machine
steel plate rolling machine

Top 7 Benefits

  • Double-speed working system.
  • The workpiece unloading is easier after the completion plate rolling process of the PRT 3-roll plate rolling machine.
  • The upper roller can be used as a traditional bending machine, which can achieve the cylinder alignment, in the same way, the thick plate cone can be made through several times rolling. Conical bending device.
  • A small lower roller center distance is conducive to the pre-bending of a thin plate with a small diameter, which can meet the pre-bending of various diameters.
  • During the pre-bending and rolling, the plates always keep in a horizontal position so that the material can be moved more easily.
    Solid and special geometry structure makes it more suitable for use.
  • A large working stroke is good to get a better plating rolling effect and can roll thicker plates than similar 3-roller or 4-roller plate rolling machines. Induction hardening forged rollers or SAE1050 rolling steel rollers.
  • The horizontal movement of two lower rollers and a lower working height requires a smaller foundation pit and a smaller foundation bolt load (the minimum machine doesn’t need a foundation).

Working Principle

PRT 3 roll bending machine is a special cold bending equipment that uses the principle of three points to form a circle. Under normal temperature, the metal plate is rolled from a flat plate into an arc-shaped, cylindrical and conical workpiece.
  1. The top roll rises and falls vertically. Power: hydraulic cylinder. Function: Apply pressure to the plate to bend the plate.
  2. The top roll moves horizontally. Power: Electric motor. Function: Adjust the horizontal distance between the upper and lower work rolls, so that the upper and lower work rolls are arranged asymmetrically, so as to realize the pre-bending of the end of the sheet and reduce the length of the straight edge. ​​
  3. The lower rolls rotate. Power: Electric motor. Function: Provide torque for rolled sheet.
  4. Overturning the bearing body is overturned and reset. Power: hydraulic cylinder. Function: Unload the rolled work.
Top roll horizontal movement 3-roll bending machine

Technical Parameter

ModelPressure of Top Roller
(T)
Max. Bending Thickness
(mm)
Pre-bending Thickness
(mm)
Max. Bending Width
(mm)
Top Roller Diameter
(mm)
Bottom Roller Diameter
(mm)
Central Distance
(mm)
Main Motor(Kw)
Drive,Hydraulic,Movement
PRT-04252543.5250020012516042.21.1
PRT-06253065250021012516042.21.1
PRT-08203786.5200021013518042.21.1
PRT-088253786.525002351351805.52.21.1
PRT-102003710820002351351805.52.21.1
PRT-10255510825002501452007.541.1
PRT-122065121020002501452007.541.1
PRT-122575121025002651452007.541.5
PRT-123075121030002901502451141.5
PRT-162075161320002651502457.541.5
PRT-162510016132500300165270155.51.5
PRT-163013016133000330180300155.52.2
PRT-202010020162000300165270155.51.5
PRT-202513020162500330180300155.52.2
PRT-20×301602016300038020033018.57.52.2
PRT-20×402302016400044023538030114
PRT-252519025202500380220360227.54
PRT-25302302520300041023538030114
PRT-25402702520400049025040030114
PRT-30252303025250041023538030114
PRT-30302703025300045025040030114
PRT-30403803025400055027546045225.5
PRT-35253203528250045025040030114
PRT-35303803528300051027546045225.5
PRT-40253804032250050027546045225.6
PRT-40304304032300054029050055227.5
PRT-404054040324000630340610552211
PRT-453054045363000590340610552211
PRT-50254305040250058029050055227.5
PRT-503054050403000600340610552211
PRT-504069050404000700380700753015
PRT-553061055453000620360650753015
PRT-554085055454000750420780903715
PRT-603069060503000650380700753015
PRT-604093060504000780440820903715
PRT-703085070563000710420780753715
PRT-70401150705640008404809201104518.5
PRT-753093075603000740440820903715
PRT-8030105080653000770460880903718.5
PRT-90301150907530008204809201104518.5
PRT-1003013501008030008604809201104522
PRT-11040180011090400095060011201325537
PRT-120301800120100300092058011201325537
PRT-120402300120100400099064012802757537
PRT-1503023001501203000105066012802×757545
PRT-1603025001601303000108070013602×757545
PRT-1604028001601304000126072013802×909045

Read More: Best Guide to Plate Rolling Process: Formula, 2 Tips, 11 Keys