Durma HRB-4 Plate Roll
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Durma HRB-4 Plate Roll

Four-roll plate bending machine for precise, fast cylinder and cone rolling up to 200mm thick with minimal straight edge

Models
HRB-4 1505 to HRB-4 4035 (46 models)
Rolling Width
1550 to 4100 mm
Bending Thickness (mild steel, 240 N/mm²)
5 to 95 mm
Pre-Bending Thickness
3 to 70 mm
Top Roll Diameter
150 to 760 mm
Motor Power
4 to 55+55 kW
Machine Weight
2,490 to 110,000 kg
Roll Configuration
4-roll (top, bottom, and two side rolls)
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Applications

Where It Works

  • Rolling cylinders, cones, and curved sections from thin sheet through 200mm thick plate in one machine.
  • Tank, vessel, and structural fabrication where precise radius control and minimal straight edge matter.
  • Shops replacing three-roll machines for faster cycle times and less operator-dependent results.

Features

Built In

  • Four-roll design pinches the plate before bending starts, so there is no flat spot at the leading edge and less dependence on operator skill than a three-roll machine.
  • Spherical roller bearings and bronze housings in all roll guides need minimal lubrication and hold precision through years of production.
  • High torque drive system delivers shorter cycle times on heavy plate without sacrificing accuracy.

Specifications

Technical Specs

Capacity (Series Range)

Models
HRB-4 1505 to HRB-4 4035 (46 models)
Rolling Width
1550 to 4100 mm
Bending Thickness (mild steel, 240 N/mm²)
5 to 95 mm
Pre-Bending Thickness
3 to 70 mm
Top Roll Diameter
150 to 760 mm
Motor Power
4 to 55+55 kW
Machine Weight
2,490 to 110,000 kg
Roll Configuration
4-roll (top, bottom, and two side rolls)

Per-Model Specs

HRB-4 1505
Width 1550 mm · bending 6 mm / prebend 4 mm · rolls Ø150/150/130 · 5.5 kW · 2,490 kg · 3100×970×1140 mm
HRB-4 1507
Width 1550 mm · bending 8 mm / prebend 5 mm · rolls Ø170/170/140 · 5.5 kW · 2,660 kg · 3100×970×1140 mm
HRB-4 2004
Width 2050 mm · bending 5 mm / prebend 3 mm · rolls Ø150/150/130 · 4 kW · 2,690 kg · 3600×970×1140 mm
HRB-4 2006
Width 2050 mm · bending 7 mm / prebend 4 mm · rolls Ø170/170/140 · 5.5 kW · 2,920 kg · 3600×970×1140 mm
HRB-4 2008
Width 2050 mm · bending 10 mm / prebend 6 mm · rolls Ø200/200/190 · 7.5 kW · 4,340 kg · 3830×1160×1180 mm
HRB-4 2010
Width 2050 mm · bending 12 mm / prebend 8 mm · rolls Ø210/190/180 · 11 kW · 4,250 kg · 3830×1160×1180 mm
HRB-4 2013
Width 2050 mm · bending 15 mm / prebend 10 mm · rolls Ø230/210/190 · 11 kW · 4,570 kg · 3830×1160×1180 mm
HRB-4 2016
Width 2050 mm · bending 18 mm / prebend 13 mm · rolls Ø270/250/220 · 15 kW · 8,000 kg · 4260×1660×1590 mm
HRB-4 2020
Width 2050 mm · bending 22 mm / prebend 16 mm · rolls Ø300/270/220 · 18.5 kW · 8,500 kg · 4260×1660×1590 mm
HRB-4 2025
Width 2050 mm · bending 28 mm / prebend 20 mm · rolls Ø330/300/240 · 22 kW · 9,200 kg · 4260×1660×1590 mm
HRB-4 2030
Width 2050 mm · bending 33 mm / prebend 25 mm · rolls Ø360/330/270 · 30 kW · 13,950 kg · 4510×2060×2050 mm
HRB-4 2035
Width 2050 mm · bending 38 mm / prebend 30 mm · rolls Ø400/370/290 · 37 kW · 15,300 kg · 4510×2060×2050 mm
HRB-4 2040
Width 2050 mm · bending 44 mm / prebend 35 mm · rolls Ø430/400/320 · 45 kW · 16,380 kg · 4510×2060×2050 mm
HRB-4R 2050
Width 2050 mm · bending 55 mm / prebend 40 mm · rolls Ø460/440/360 · 45+22 kW · 23,800 kg · 4634×2280×2375 mm
HRB-4R 2060
Width 2050 mm · bending 65 mm / prebend 45 mm · rolls Ø480/455/370 · 55+22 kW · 24,800 kg · 4634×2280×2375 mm
HRB-4R 2065
Width 2050 mm · bending 70 mm / prebend 50 mm · rolls Ø520/490/410 · 30+30 kW · 38,000 kg · 5035×2630×2787 mm
HRB-4 2506
Width 2550 mm · bending 7 mm / prebend 4 mm · rolls Ø200/200/190 · 7.5 kW · 4,970 kg · 4330×1160×1180 mm
HRB-4 2508
Width 2550 mm · bending 10 mm / prebend 6 mm · rolls Ø210/190/180 · 11 kW · 4,850 kg · 4330×1160×1180 mm
HRB-4 2510
Width 2550 mm · bending 12 mm / prebend 8 mm · rolls Ø230/210/190 · 11 kW · 5,250 kg · 4330×1160×1180 mm
HRB-4 2513
Width 2550 mm · bending 15 mm / prebend 10 mm · rolls Ø270/250/220 · 15 kW · 8,840 kg · 4760×1660×1590 mm
HRB-4 2516
Width 2550 mm · bending 18 mm / prebend 13 mm · rolls Ø300/270/220 · 18.5 kW · 9,600 kg · 4760×1660×1590 mm
HRB-4 2520
Width 2550 mm · bending 22 mm / prebend 16 mm · rolls Ø330/300/240 · 22 kW · 10,500 kg · 4760×1660×1590 mm
HRB-4 2525
Width 2550 mm · bending 28 mm / prebend 20 mm · rolls Ø360/330/270 · 22 kW · 15,150 kg · 5010×2060×2050 mm
HRB-4 2530
Width 2550 mm · bending 33 mm / prebend 25 mm · rolls Ø400/370/290 · 30 kW · 16,420 kg · 5010×2060×2050 mm
HRB-4 2535
Width 2550 mm · bending 38 mm / prebend 30 mm · rolls Ø430/400/320 · 37 kW · 17,750 kg · 5010×2060×2050 mm
HRB-4R 2540
Width 2550 mm · bending 44 mm / prebend 35 mm · rolls Ø460/440/360 · 37+22 kW · 26,400 kg · 5134×2280×2375 mm
HRB-4R 2550
Width 2550 mm · bending 55 mm / prebend 40 mm · rolls Ø480/455/370 · 45+22 kW · 32,200 kg · 5134×2280×2375 mm
HRB-4 3006
Width 3100 mm · bending 7 mm / prebend 4 mm · rolls Ø210/190/180 · 7.5 kW · 5,200 kg · 4880×1160×1180 mm
HRB-4 3008
Width 3100 mm · bending 10 mm / prebend 6 mm · rolls Ø230/210/190 · 11 kW · 5,800 kg · 4880×1160×1180 mm
HRB-4 3010
Width 3100 mm · bending 12 mm / prebend 8 mm · rolls Ø270/250/220 · 11 kW · 9,700 kg · 5310×1660×1590 mm
HRB-4 3013
Width 3100 mm · bending 16 mm / prebend 10 mm · rolls Ø300/270/220 · 15 kW · 10,600 kg · 5310×1660×1590 mm
HRB-4 3016
Width 3100 mm · bending 18 mm / prebend 13 mm · rolls Ø330/300/240 · 18.5 kW · 11,600 kg · 5310×1660×1590 mm
HRB-4 3020
Width 3100 mm · bending 22 mm / prebend 16 mm · rolls Ø360/330/270 · 22 kW · 16,650 kg · 5560×2060×2050 mm
HRB-4 3025
Width 3100 mm · bending 28 mm / prebend 20 mm · rolls Ø400/370/290 · 30 kW · 18,300 kg · 5560×2060×2050 mm
HRB-4 3030
Width 3100 mm · bending 33 mm / prebend 25 mm · rolls Ø430/400/320 · 37 kW · 20,500 kg · 5560×2060×2050 mm
HRB-4R 3035
Width 3100 mm · bending 38 mm / prebend 30 mm · rolls Ø460/440/360 · 37+22 kW · 31,500 kg · 5684×2280×2375 mm
HRB-4R 3040
Width 3100 mm · bending 44 mm / prebend 35 mm · rolls Ø480/455/370 · 45+22 kW · 35,000 kg · 5684×2280×2375 mm
HRB-4R 3050
Width 3100 mm · bending 53 mm / prebend 40 mm · rolls Ø520/500/410 · 30+30 kW · 45,000 kg · 6085×2630×2787 mm
HRB-4 4008
Width 4100 mm · bending 10 mm / prebend 6 mm · rolls Ø300/270/220 · 15 kW · 12,700 kg · 6310×1660×1590 mm
HRB-4 4010
Width 4100 mm · bending 12 mm / prebend 8 mm · rolls Ø330/300/240 · 15 kW · 14,100 kg · 6310×1660×1590 mm
HRB-4 4013
Width 4100 mm · bending 15 mm / prebend 10 mm · rolls Ø360/330/270 · 18.5 kW · 19,350 kg · 6560×2060×2050 mm
HRB-4 4016
Width 4100 mm · bending 18 mm / prebend 13 mm · rolls Ø400/370/290 · 22 kW · 21,300 kg · 6560×2060×2050 mm
HRB-4 4020
Width 4100 mm · bending 22 mm / prebend 16 mm · rolls Ø430/400/340 · 30 kW · 23,810 kg · 6560×2060×2050 mm
HRB-4 4025
Width 4100 mm · bending 28 mm / prebend 20 mm · rolls Ø460/440/360 · 37 kW · 39,000 kg · 7200×2300×2530 mm
HRB-4 4030
Width 4100 mm · bending 33 mm / prebend 24 mm · rolls Ø480/455/370 · 37+22 kW · 43,000 kg · 6684×2280×2375 mm
HRB-4 4035
Width 4100 mm · bending 39 mm / prebend 28 mm · rolls Ø520/500/410 · 30+30 kW · 50,000 kg · 7085×2630×2787 mm

Drive & Controls

Control
PLC standard (NC or CNC optional)
Drive System
High-torque; top and bottom rolls driven by planetary reducer, hydraulic motor, and gear system
Roll System
Planetary swing rolls (top roll Ø140 to 430 mm, top and bottom driven); Rectilinear rolls (top roll Ø430 to 760 mm, all rolls driven)
Synchronization
Electronic synchronized rolls; mechanical synchronized bottom rolls
Pinching Pressure
Adjustable
Hydraulics
Bosch Rexroth valves with pressure safety valves
Brake
Hydraulic brake prevents sheet slip-back

Machine

Body
Stress-relieved welded steel construction, strengthened and lowered
Rolls
High-tensile carbon steel (C45), induction hardened to HRC 54±2, crowned
Roll Bearings
Sealed spherical roller bearings with bronze housings
Bending
Pre-bending, conical, and ellipse bending; double pre-bend both ends in one pass
Conical Bending
Down to 1.5x the top roll diameter
Opening
Hydraulic drop-end opening cover
Lubrication
Manual (automatic centralized optional)
Safety
Safety wire around machine, emergency stop, CE

Downloads

Documentation

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