DURMA HRB SERIES Plate Roll Bending • Strong • Precise • Efficient • Fast • High Repeatability

The Winning Force As a total supplier for sheet metal manufacturing with almost 60 years of experience, Durma understands and recognizes the challenges, requirements and expectations of the industry. We strive to satisfy the ever higher demands of our customers by continuously improving our products and processes while researching and implementing the latest technologies. In our three production plants with a total of 150.000 m², we dedicate 1,000 employees to delivering high quality manufacturing solutions at the best performance-to-price ratio in the market. From the innovations developed at...

HRB-4 Series Plate Rolls “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. Fast and Reliable Efficient Cycle Times User Friendly, Easy to Operate Increased Productivity Up to 200 mm Bending Thickness

Finest Bending Performance “Durma always strives to be your preferred partner” 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 Series Standard Features Robust Body Structure Machine’s body is strengthened and lowered to minimise the twists and deformation. Machine body, frame and steel bar connections are stress relieved after the welding operation. Planetary Swing Rolls System Electrical System Cabinet...

HRB Series Standard Features Conical Bending System Strong body and angular bottom and side rolls enables to easily conical bend materials. While machile machines in the market bends conical 3 times of top roll diameter, Durma HRB machines can bend 1.5 times easily. Hydraulic System Rolls are positioned by hydraulic components. The precision of axes are maintained through the use of Bosch Rexroth valves. Pressure safety valves protect against peak pressures and overloads. Synchronized Rolls System Side rolls triggered by 4 different strong hydraulic cylinders. Syncronisation between Thanks to...

HRB Series Optional Features Vertical and Side Support System NC Control Unit (HRB-4) In addition to standard user friendly control unit, all bending steps are recorded for operator in teaching mode. All recoreded movements can be repeated using automatic mode. NC control system has capacity to save 70 programs up to 100 steps each. Optional hydraulic side and vertical supports the sheet’s stretch and prevent deterioration of the bending form in big shaped bending. Moveable gauges with hydraulic double cylinders are produced from St52 steel construction. Sheet is easy sliding movement on supports...

HRB Series Optional Features Both Vertical and Horizontal Working Special solution for corrugated sheet Both Vertical and Horizontal Working This option can be used when the large diameters bendings are not achived with the support systems and the height is limited, its requires a pit and with this pit machine can be more usefull as well as the height advantages. Extended and Profile Bending Rolls Extenden top and side Rolls with the universal bending roll sets bar, profile, angle profile can be easlie produced without needing any additional machinery, if needed special roll set can also be provided...

HRB Series Special Features Full automaticand Horizontal Working Both Vertical bending line with loading and unloading Wind tower bending line Both Vertical and Horizontal Working Anguler Material Feeding System Material Feeding and Lip Alignment System With the long and large sizes of metal sheets there may always have difficulties to providing the accuracy, placing and keeping the control of the product. Robust Bearing and housing bearing will provide smooth movement towards the machine, motorized or manual feding tables also ensures the reduction of time and easy process. Opposite hydraulic...

Standard & Optional Equipment Standard Equipments 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 0 200 mm - 0 430 mm) 4 rolls drive system (Upper roll <0 430 mm) Fixed top roll (Upper roll 0 200 mm - 0 430 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...

"Fast, Accurate and Easy to Operate” Hydraulics Plate 3-Roll Bending Machine Flexiblity of 3 roll for medium sizes by Durma technology Prebending of both the leading and trailing edge The mentioned values above is only works for 240 N/mmJ 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 Flexible machine for meditum to thick material Cost effective solutions for large diameters Wide working range Excellent...

MRB-S Series Plate Rolls Motorised Assymetrical 3 Roll Machine Especially for thinner sheets with small lot sizes Easy prebending thanks to top & bottom rolls tighten the workplace Cost-oriented solutions for small and medium enterprises Wide range of industrial usage Fast on Service and Spare Parts Standard Equipment DURMA provides the best level of service and spare parts with qualified personnel and spare parts in stock. Our experienced and professional service personnel are always ready at your service. Our professional training and application enriched courses will give you an advantage...