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Four Roll Round Bending Machine Basic RBB

The RBB is the entry model into the world of bending of tubes and forms. Through the four-roll technology and SPS which is enabling the pre- or re-bending, sheet metal tubes can be produced which can be welded on longitudinal seam welding machine with a laser or WIG.
 
Infinitely variable feed motors provide the pre-bending and the bending angle. The plate thickness is adjusted by pneumatic cylinders. The lateral stop for pre-bending is free-standing. Control panel with PLC control and touch screen.
 
Bending rolls are are out of high strength material and can be hardened and ground on customers demand.
 
 
Example sizes RBB 42-70


Modell
RBB 42
RBB 52
RBB 60
RBB 70
Effective length max [mm]
530
1030
1030
1030
Sheet thickness* max [mm]
1
1,2
1,5
1,8
Diameter upper roll [mm]
42
52
60
70
 
 
 
 
 
Modell
RBB 85
RBB 100
RBB 120
 
Effective length max [mm]
1030
1530
1030
 
Sheet thickness* max [mm]
2,5
2,4
4,5
 
Diameter upper roll [mm]
85
100
120
 
* The sheet thickness refers to a material with a tensile strenght of  400 N/mm² and an elastic limit of 250 N/mm²!
 
 
     

Product Information

Four Roll Round Bending Machine Basic RBB
Automatical Rounding Machines

Four Roll Round Bending Machine Basic RBB

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