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Round Bending Machines : Four rolls Basic

The round bending machine basic in rour roller design (RBB) is the entry model into the world of bending of high-quality round tubes. 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, the bending angle and angular deflection plate. 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.
The RBB is available in the same standard measurements as the RBA
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 1,5 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 3,2 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 rolls Basic
Round Bending Machines

Four rolls Basic

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automatic rounding machine basic

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