Plate bending machine with 4 rollers
1 550 - 4 100 mm | HRB-4
Durma
4 roll machines are more precise,faster, more productive and safer plate roll benders by its user friendly operations without dependence to operator competence.
The most accurate,ease of operate, the fastest bendings are acquired with 4 rolls machine. In principal , the sheet is hold in between top and bottom rolls and by side rolls upright movements and turnings bending is realised.
The bottom roll which is positioned with the same axis with top roll tighten the sheet from the edge and creates perfect pre-bendings.By this way,the flat zone of the sheet edges is minimised.
The side rolls positioned right and left of bottom rolls, are independent
axes.These axes contributes to perfect bendings.
The sheet is controlled by tightening of top and bottom rolls.This operation does not allow the sheet is skid and fall down.The machine can also be installed below the ground.
The paralelism of the sheet can be assured by support of side roll middle position at the rear.
Forming the sheet by controlling it in between top and bottom roll is also the most suitable bending operation for CNC applications.Difficult bending shapes like poly-centric or eliptic workpieces can also be acquired easiliy with CNC 4-Rolls machines.
4 rolls does not require to remove and then flip and then try to acquire the parallelism of the worksheet after the prebending comparing with 3 rolls machine.Which means 4 rolls are %50 more efficient than 3 rolls.
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