4-roller plate bending machine 8268 series

hydraulicCNC

Suitable for small to medium production and demanding applications, the 8268 is designed to meet the requirements for longer CNC rolls for tight radius bending. A welded steel frame and cast guides provide the necessary rigidity. The design with three rolls (pre-bending, bottom and bending roll) mounted independently in separate guides enables high productivity and easy adjustment of the rolls. The top roll is mounted above the middle roll making this machine a four-roll bender with symmetrically placed rolls. In order to control the bending result over the working length, the machine can be equipped with hydraulic crowning supports for the lower roll. This is carried out by three support blocks with four pressure bearings. The crowning is adjusted with a hand pump. All four rolls are driven in order to prevent scratches on easily damaged sheets from slipping rolls. The movement of the three lower rolls is carried out by lead screws. The four-roll system eliminates the need for any intermediate handling of the sheet between pre-bending and final bending. This ensures high repetition accuracy as well as a rapid and rational production. When the bending is finished the lock clamp on the right hand side opens to allow removal of the bent profile. This function can be eliminated in the program. As standard the machine is delivered with hardened and ground rolls, motor 400V 3-phase and 24V control voltage. •CNC-control with the capacity to store 200 programs in internal memory and nearly unlimited by attaching an external USB flash drive •Pre-bending and final bending in one cycle •All four rolls are driven •Crowned rolls