Twin piston continuous screen changer for plastic extrusion machine
Why do we need to use the screen changer/ melt filter on the non-woven fabric extrusion machine?
In nonwovens manufacture it is necessary to achieve a uniform spinning quality across all spin packs. Therefore, any in homogeneities must be removed before they enter the spinning beam. Moreover, process consistency regarding pressure and temperature is the basic prerequisite for an efficient production. Our GT-DP-R series double-piston continuous screen changer is widely used on spun bond and melt-blown nonwovens production lines
Benifits of this GM-DP-R seriespolymer melt filter
1, Eliminates line shutdown thus increasing production
2, Leakage-free process
3, Two breaker plates design increases filtration area compared to single breaker plate design
4, Reduced downtime & scrap
5, Reduced inlet pressure at extrusion die
6, Reduced temperature variations in the melt ·
The structures and parameter data of GM-DP-R series of polymer melt filter
1)The main body of the screen changer
Raw material: Alloy steel(38CrMoAlA)
Surface treatment: Nitriding treatment
Depth of Nitrated Layer: 0.40-0.70mm
Nitrided hardness: 950-1050Hv
Fragility of nitration: Less than grade 1
Flow channel treatment: Chrome plated
Depth of chromium-plating: 0.05-0.1mm
Hardness of surface after chromium-plating: HV950HV
2)Drive system: Hydraulic unit:
Hydraulic unit
3)Control system
Electrical controlling system: Warnning device, pressure and temperature transducer, are included, and this part is optional by customers
Application fields
Cast film (Bubble pack\ Medical\Food Wrap)
Sheet (Foam\Strapping\Plastic cardboard)
Coating (Hot melt adhesive)
Pipe (Corrugated\Gas Pipe) and profile
Compounding (Master Batch\filler)
Wire and cable extrusion
Tubing (Medical\ Industrial\Irrigation)
Fibers (Monofilament)
Pelletizing (strands and underwater)
Recycling of most polymers
Commissioning
At the requirement of customer, seller should send technicians to install and debug the screen changer to the die at site of Buyers, Travelling expenses and accommodation fee should be borne by Buyers.
Warranty
"three guarantees"(return, replacement, repair) of all the spare parts for one year. Travelling expenses and accommodation fee for"three guarantees" will be borne by users.
Type |
Screen D&A
|
(mm)
overall dimension |
Heating power
(KW)) |
Output
(kg/h) |
| |
(mm) |
(CM²) |
L |
W |
H |
L1 |
|
|
| GM-DP-R-80 |
Φ60 |
28x2 |
180 |
170 |
280 |
700 |
2.4/3.2 |
30-180 |
| GM-DP-R-100 |
Φ80 |
50x2 |
220 |
200 |
320 |
810 |
3.5/4.7 |
80-280 |
| GM-DP-R-120 |
Φ100 |
78x2 |
250 |
220 |
360 |
970 |
5.0/7.2 |
220-480 |
| GM-DP-R-155 |
Φ130 |
113x2 |
320 |
270 |
450 |
1100 |
8.2/11.1 |
300-700 |
| GM-DP-R-170 |
Φ145 |
165x2 |
370 |
310 |
480 |
1320 |
9.4/12.7 |
400-1100 |
| GM-DP-R-195 |
Φ165 |
214x2 |
400 |
380 |
550 |
1470 |
10.2/13.8 |
650-1500 |
| GM-DP-R-220 |
Φ180 |
254x2 |
440 |
410 |
590 |
1620 |
13/17.5 |
800-1800 |
:,.
Remark: As the above specification is subject to change without prior notice |
Audited Supplier 
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