3-layer CPP Sheet Co-extrusion Line
Features:
This co-extrusion line is developed from overseas same type production line with inline automatic thickness measurement and thickness control. Therefore the film is much better. The thickness tolerance may even control within 0.5 microns by theory and 1 micron may do. With a top quality 2- side corona treatment system and so insured to reach more than 40 dynes at linear speed of 150 m/min. With a turret winding station, including automatic cut- off and automatic splicing. Of course, traditional frictional winding station is available at request.
Technical Parameter:
| Orignal material |
PP, PE, PA |
T-die width |
1500 mm |
| Valid film width |
1300 -- 2200 mm |
Product thickness |
10--70 mic |
| Extrusion quantity |
105 -- 170 kg/hr |
Max. Mechanical speed |
120 m/min |
| Thickness error |
0.5 microns |
Max. web diameter |
600 mm |
| Total weight |
abt. 28 tons |
Total power |
abt. 280KW |
| Dimensions |
15500 x 4200 x 3660 mm (L/W/H) |
Floor |
16000 x 7000 mm (L/W) |
Key parts:
1. Main machine has 3 extruders with a ratio of length to diameter of 32:1. Extruder A: D100 mm. Extruder B: D65 mm. Extruder C: 65 mm Each with an auto loader and a double-filter exchanger.
2. Distributor employs a valve that may inline freely adjust the flow quantity and layer ratio. The co-extrusion method are: A/B/C, A/B/A or A/B.
3. MJ-CPP/1500 mm Automatic T-die : Top Taiwan T-die with JOG bolts for both manual and automatic adjustment. With 7 heating zones.
4. Cast section
A. Cast roller B. Cooling roller C.Silicon cleaning roller. D. Follow movement platform E. Lift devices. F. Air knife. G. Bad air exhaust fan. H. Guiding roller. I. Front and rear movement devices
5. Automatic thickness control unit
A. HPW-2002 Web Material Quality Control System: includes 1 operation station and 1 scan frame. B-ray as measurement medium.
PC program control. Precise and mature. Nuclide name: Pm147. Unit activity: 11 GBq.
With radioactive source license.
Academic precision: 0.5 mic
With both static and dynamic calibration function.
With both local and remote control functions.
Color CRT monitor with a touch screen, 17” smooth screen
Measurement range and accuracy:
Fixed Quantity Instrument: Pm147 20 – 100 g/m 2 +/- 0.5%
Kr85 80 – 1000 g/m 2 +/- 0.5%
Moisture instrument: 0.1 – 40%H2O +/- 1% H2O
6. BDC-16KW Corona double-side treatment unit by a top China college.
1) Power source: 380 VAC +/- 10%, 50/60 Hz
2) Input capacity: 500 – 16000w
3) Impulse frequency: 15 – 25 KHZ
4) Output voltage: 13000 V (max.)
7. Pulling section
A. Pull roller B. Pulling rubber press roller
C. Edge slitting device D. Tension inspection floating devices
E. Guiding roller F. Eccentric device
G. Open flat roller H. Wastage blow-off device
8. Winding station:
A. Double-post over turn turret. B. Winding device
C. Air shaft. D. Overturn device.
E. Aluminum guiding roller
9. Electrical configuration
1. PLC and touch screen by Simens
2. V. F. drive by Taiwan TECO
3. Temperature controller by Japan OMRON
