Innovative technology Bending: Crowning system
The TRUMPF crowning systems
Compensation for sagging of the pressure bar is called "crowning." For every machine concept, TRUMPF offers you the optimum design.
TruBend Series3000: Slot and hydraulic crowning
In the TruBend Series 3000, crowning self-activates without specific triggering by the operator. The machine table uses crowning slots to react automatically to the physical deformation of the pressure bar. At machine lengths starting at three meters, crowning is complemented by additional hydraulic cylinders integrated into the machine table.
TruBend Series 5000: Wedge crowning
The integrated CNC wedge crowning ensures a constant bending angle over the entire length of the machine CNC crowning works entirely independently and calculates the correct crowning values from the programming data. The crowning drive is integrated into the machine table. That leaves generous bending space on both sides of the table.
TruBend Series 7000: Pressure bar optimization
In the TruBend Series 7000, crowning is unnecessary, since the pressure bar's force dynamics have been so optimized that even under maximum load the deflection of the beam is minimized.
TruBend Series 8000: Point crowning
Particularly for long machines, it may be necessary to adjust crowning values locally in order to implement an arbitrary crowning curve; for instance, when a bent part has a notch on the bending edge. Point crowning on the TruBend Series 8000 solves just that problem, because it adjusts the crowning to a suitable value at intervals of 250 mm.