automatic system "FRAD"
System for automatic die adjustment in order to get a even thickness profile + electronically gap changing.
Thickness profile is controlled like with standard "thermal bolts". Lip-gap it self can be adjusted "electronically" via setup on thickness gauge. You can set a new lip-gap during running extrusion line. Just enter new gap in thickness gauge a wedge driven by an electromotor pushes down or lifts all thermal bolts together.
Product changes become easy and quick, no need for extrusion-line standstill.
Actuators: steel bolts with heating cartridges + wedge actuated by electric motor
Operating range 2 mm (gap adjustment = wedge range: all bolts together) + operating range of thermal bolts for thickness profile adjustment (300 µm + manual adjustment)
Partition of actuators: 30, 28 or 25,4 mm (1”)
Picture: retrofitted extrusion die with SBI automatic system FRAD