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4-roll HRB-4 (hydraulic)

DURMA HRB-4 Series Roll Bending Machine

“Fast, Accurate and Easy to Operate”
Four plate rolls are more precise, productive, versatile, faster,
safer and easier to operate than three roll machines.
They are less dependent on operator competence.
Ideal for bending plates up to 200 mm thick.

Robust machine body and construction ensure long machine life and low maintenance. High torque drive system allows HRB to achieve shorter cycle times. User friendly control units makes it possible to be less dependant on operator competence.

HRB-4 Roll Bending today, tomorrow and forever with you.





    Up to 8000 mm Bending Lenghts
    Up to 200 mm Bending Thickness
    Accurate, Easy to Operate, Fast and Reliable
    Flat zone of the part is minimized
    Pre-bending, conical bending and ellipse bending can be done easily
    Double pre-bends (both ends) in one pass
    The sheet reference is maintained by tightening of top and bottom rolls
    Most desirable bending operation for CNC applications
    More efficient for cycle times
    Hydraulic and electrical systems have been safeguarded from overloading and require minimum maintenance.
    Hydraulic and electrical components are modual and designed according to world standards

    PLC control system
    Conical bending
    Induction hardened rolls
    Stress relieved steel construction body
    High tensile carbon steel rolls
    Sealed spherical roller bearings
    2 rolls drive system (Upper roll Ø 200 mm – Ø 430 mm)
    4 rolls drive system (Upper roll <Ø 430 mm)
    Fixed top roll (Upper roll Ø 200 mm – Ø 430 mm)
    Hydraulic opening cover
    Welding possibility on the machine
    Electronic synchronized rolls
    Mechanical synchronized bottom rolls
    Adjustable pinching pressure
    Overload protection
    Safety wire around the machine and emergency stop button on control panel
    Manual lubrication
    User manual

    NC Control Unit
    CNC Control Unit
    Polished rolls
    Adjustable turning speed (NC, CNC Standard)
    Vertical or horizontal working position
    Hydraulic vertical support preparation (Full / Mechanical)
    Hydraulic vertical support
    Side support preparation (Full / Mechanical)
    Hydraulic side supports
    Hydraulic side supports with double joint
    NC included side and vertical supports
    Interchangable top roll
    Longer rolls for profile bending and special bending rolls
    Oil cooling
    Oil heating
    Automatic centralized lubrication system
    Hydraulic roll crowning system
    Plate feeding platform with alignment unit
    Special plate support systems
    Loading, unloading systems
    Seperate power cabinet
    Special solutions for wind tower projects

    MODEL
    TYPE
                                            Bending Lenght  Min. Int. Dia
    Ø Dmin
    Top Roll Bottom Roll Side Rolls Lenght Width Height Working Height Weight Motor Power Hydraulic Tank Capacity
    Ødx5 Ødx1,5 Ødx5 Ødx1,5
     Bending Capacities Bending Capacities Pre-Bending Capacities Pre-Bending Capacities
    L (mm) s (mm) s (mm) S (mm) S (mm) Ød (mm) Ø (mm) Ø (mm) U (mm) G (mm) Y (mm) C (mm) (kg) (kW) l
    HRB-4 15150 1550 6 5 5 4 150 150 130 3100 970 1140 875 2490 5,5 90
    HRB-4 15170 1550 8 6 6 5 170 170 150 3100 970 1140 865 2850 5,5 90
    HRB-4 20150 2050 5 4 4 3 150 150 130 3600 970 1140 875 2600 4 90
    HRB-4 20170 2050 6 5 5 4 170 170 150 3600 970 1140 865 2750 5,5 90
    HRB-4 20200 2050 8 6 6 5 200 200 190 3830 1160 1200 840 4350 7,5 160
    HRB-4 20220 2050 10 8 8 6 220 220 180 3830 1160 1200 830 4650 7,5 160
    HRB-4 20240 2050 13 10 10 8 240 240 190 3830 1160 1200 820 5000 11 160
    HRB-4 20260 2050 16 13 13 10 260 260 230 4260 1660 1600 1160 7800 15 400
    HRB-4 20270 2050 18 15 15 12 270 270 230 4260 1660 1600 1155 8050 15 400
    HRB-4 20280 2050 20 16 16 13 280 280 240 4260 1660 1600 1150 8300 18,5 400
    HRB-4 20300 2050 23 18 18 15 300 300 240 4260 1660 1600 1140 8800 18,5 400
    HRB-4 20320 2050 25 20 20 16 320 320 250 4260 1660 1600 1130 9100 22 400
    HRB-4 20340 2050 28 23 23 18 340 340 260 4260 1660 1600 1120 9800 22 400
    HRB-4 20360 2050 30 25 25 20 360 360 270 4510 2060 2050 1510 14200 30 600
    HRB-4 20380 2050 40 30 30 25 380 380 290 4510 2060 2050 1500 15100 30 600
    HRB-4 20400 2050 45 35 35 30 400 400 300 4510 2060 2050 1490 16000 37 600
    HRB-4 20460 2050 50 40 40 35 460 460 380 4710 2210 2170 1590 18000 45 800
    HRB-4 25200 2550 6 5 5 4 200 200 190 4330 1160 1200 840 5000 7,5 160
    HRB-4 25220 2550 8 6 6 5 220 220 180 4330 1160 1200 830 5350 7,5 160
    HRB-4 25240 2550 10 8 8 6 240 240 190 4330 1160 1200 820 5700 11 160
    HRB-4 25260 2550 13 10 10 8 260 260 230 4760 1660 1600 1160 8650 15 400
    HRB-4 25270 2550 15 12 12 10 270 270 230 4760 1660 1600 1155 8950 15 400
    HRB-4 25280 2550 16 14 14 12 280 280 240 4760 1660 1600 1150 9300 18,5 400
    HRB-4 25300 2550 20 16 16 13 300 300 240 4760 1660 1600 1140 9800 18,5 400
    HRB-4 25320 2550 23 18 18 15 320 320 250 4760 1660 1600 1130 10500 22 400
    HRB-4 25340 2550 25 20 20 16 340 340 260 4760 1660 1600 1120 11200 22 400
    HRB-4 25360 2550 28 23 23 18 360 360 270 5010 2060 2050 1510 15200 30 600
    HRB-4 25380 2550 30 25 25 20 380 380 290 5010 2060 2050 1500 16050 30 600
    HRB-4 25400 2550 40 30 30 25 400 400 300 5010 2060 2050 1490 16600 37 600
    HRB-4 25460 2550 45 35 35 30 460 460 380 5210 2210 2170 1590 20000 45 600
    HRB-4 30220 3100 6 5 5 4 220 220 180 4880 1160 1200 830 5900 7,5 160
    HRB-4 30240 3100 8 6 6 5 240 240 190 4880 1160 1200 820 6450 11 160
    HRB-4 30260 3100 10 8 8 6 260 260 230 5310 1660 1600 1160 9700 15 400
    HRB-4 30270 3100 13 10 10 8 270 270 230 5310 1660 1600 1155 10050 15 400
    HRB-4 30280 3100 15 12 12 10 280 280 240 5310 1660 1600 1150 10550 18,5 400
    HRB-4 30300 3100 16 16 14 12 300 300 240 5310 1660 1600 1140 11100 18,5 400
    HRB-4 30320 3100 20 16 16 13 320 320 250 5310 1660 1600 1130 11400 22 400
    HRB-4 30340 3100 23 18 18 15 340 340 260 5310 1660 1600 1120 12000 22 400
    HRB-4 30360 3100 25 20 20 16 360 360 270 5560 2060 2050 1510 16750 30 600
    HRB-4 30380 3100 28 23 23 18 380 380 290 5560 2060 2050 1500 18000 30 600
    HRB-4 30400 3100 30 25 25 20 400 400 300 5560 2060 2050 1490 18800 37 600
    HRB-4 30460 3100 40 30 30 25 460 460 380 5760 2210 2170 1590 22000 45 600
    HRB-4R 30460 3100 45 35 35 30 460 440 360 5690 2280 2375 1770 31500 37+22 850
    HRB-4R 30480 3100 50 40 40 35 480 455 370 5690 2280 2375 1760 35000 45+22 850
    HRB-4R 30520 3100 60 45 45 40 520 500 410 6085 2630 2790 2045 45000 2×37+30 1100
    HRB-4R 30580 3100 70 55 55 45 580 560 440 6085 2630 2790 2015 50000 2×37+30 1100
    HRB-4R 30650 3100 80 60 60 50 650 610 500 6370 3240 3660 2825 72000 2×45+11 1700
    HRB-4R 30760 3100 100 80 80 70 760 720 600 7100 3800 4290 3333 110000 2×55+11 2200
    HRB-4 40280 4100 8 6 6 4 280 280 240 6310 1660 1600 1150 11600 15 400
    HRB-4 40320 4100 10 8 8 6 320 320 250 6310 1660 1600 1130 14000 18,5 400
    HRB-4 40360 4100 12 10 10 8 360 360 270 6560 2060 2050 1510 19500 22 600
    HRB-4 40380 4100 16 12 12 10 380 380 290 6560 2060 2050 1500 20500 30 600
    HRB-4 40400 4100 20 16 16 12 400 400 300 6560 2060 2050 1490 22000 37 600
    HRB-4 40460 4100 25 20 20 16 460 460 380 6760 2210 2170 1590 25000 45 600
    HRB-4R 40460 4100 30 25 25 20 460 440 360 6690 2280 2375 1770 39000 37+22 850
    HRB-4R 40480 4100 40 30 30 25 480 455 370 6690 2280 2375 1760 43000 45+22 850
    HRB-4R 40520 4100 45 35 35 30 520 500 410 7085 2630 2790 2045 50000 2×37+30 1100
    Bending capacies valid for multisteps bending method.
    Technical datas can be changed by DURMAZLAR MAK.SAN.TIC.A.S. without notice . Reproducing and releasing without getting permission from DURMAZLAR MAK.SAN.TIC.A.S. are prohibited.
    The mentioned values above is only works for 240 N/mm²
    Different material and widths ; can be calculated by DURMA Roll Bending Calculator
    Conic bending capacities depends on the angle and half value of mentioned values above
    Weight and motor powers optionally goes higher levels with additionals

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