The extrusion plant for the production of PA and PU calibrated tubes by compressed air, is extremely innovative in its kind, since it is electronically managed by a control and supervision system. Through a 2 axes laser measure head, the system measures and visualizes the outer diameter of the tube, and if necessary, it is able to adjust the vacuum degree automatically, through a motorized valve. Moreover a ultrasound thickness gauge continuously finds and visualizes the wall thickness of the tube, in 4 points and automatically changes the line speed, if necessary.
The "formulas" which can be memorised from the system, will enable to reproduce the same operative conditions automatically.
The continuous and automatic control of the extruded product, assures a high and constant precision of the same, enabling to document the whole productive cycle, favouring in this way the ISO certification of the product.
If the operator changes the speed, the system automatically corrects all process parameters, respecting the dimensional set up quotes.
The system manages every machine adjusting:
- temperature
- water levels and water reset as regards the two closed cooling circuits of the calibration unit as well as the two cooling tanks
- vacuum degree for the calibration of the product
- and haul-off speed.
Some performance characteristics of the plant showed in photo are:
Extruded material: PA11
Extruder : Ø 60 L/D 28:1
Max. extruder r.p.m.: 98 rpm/min.
Outer diameter of the tube: from 4 to 15 mm
Tolerance on tube's thickness = +/- 0,03mm
Tolerance on outer diameter of the tube: +/- 0,03mm
Max. production: about 90 Kg./h
NOTE: On request we can supply a PC control system to time the production in meters, discard (waste of material), prices of raw material, selling price of material, profit etc.
Gimac di Maccagnan Giorgio - Via roma, 12 - 21040 - Castronno (VA) PDN (it) - Tel.:+39/0332/89.22.06 - Fax.:+39/0332/89.22.34
P.IVA 01357250123 - e-mail: gimac@gimac.com
