Extrusion screen changer for chemical fiber production machine
Benefits of this M-DP-R series continuous screen changer for plastic extruder
Increased production
Reduced downtime & scrap
Leak-free operation
Increased filtration area
Reduced inlet pressures
Accurate, repeatable screen changes
Reduced maintenance
Technical data
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:
3)Control system
Electrical controlling system: Warnning device, pressure and temperature transducer, are included, and this part is optional for customers.
Working principle of this GM-DP-R series continuous screen changer
As the polymer melt enters the main body ofthe screen changer, the melt stream is divided equally and flows into the two channels, go through the two breaker plates, and the impurities are intercepted by the screen mesh, and when screen changing is required, one of the pistons with blocked screen pack is pushed out by hydraulic unit, and the other is still on the working position, we replace the fresh screen and then the piston with new screen is pushed into the working position, at this time, the air bleeding system also begin to work. The other piston screen change is the same with above. This type of continuous screen changer maintains a continuous melt flow.
Benifits of this GM-DP-R series Extrusion screen pack changers continuous screen changer
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 ·
7, Equiped with gas venting system
8, Customized design
The structure and parameter data of GM-DP-R series Extrusion screen pack changers continuous screen changer
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
Applications
1. Non-woven.
2. Granulation.
3. Pipe.
4. Plate.
5. Sheet.
6. Cast film.
Non-woven fabrics extrusion machine
Plastic granulator
PP/PE/PPR pipe extrusion line
PP/PE plate extruder
Sheet extruder
PET monofilament extrusion machine
PET strap extrusion machine
Quality inspection
We take only first-class steel and check every production procedure to ensure every dimension is produced precisely. A final complete inspection will be executed before delivery. We guarrantee that every set of scren changer from our factory is the best quality.
Packaging
Seaworthy packaging
Commissioning
We provide the operation manual for customers to gudie to install the screen changer, and at the requirement of user, salers should send technician to install and commissioning the die at site of Buyers, expenses of the trip should be borne by Buyers.
After-sales service
12 months with proper operation by user, all the spare parts shall be replaced free of charge under guarantee period, fee for transportation and packing will be borne by users.
Type |
ScreenD&A
|
Overall & dimension
(mm) |
Heating power
(KW)) |
Output
(kg/h) |
| |
Dia (mm) |
Filtration area (cm² ) |
L |
W |
H |
L1 |
|
|
| G M -DP-R-80 |
60 |
28x2 |
180 |
170 |
280 |
700 |
2.4/3.2 |
30-180 |
| G M -DP-R-100 |
80 |
50x2 |
220 |
200 |
320 |
810 |
3.5/4.7 |
80-280 |
| GM -DP-R-120 |
100 |
78x2 |
250 |
220 |
360 |
970 |
5.0/7.2 |
220-480 |
| G M -DP-R-155 |
130 |
113x2 |
320 |
270 |
450 |
1100 |
8.2/11.1 |
300-700 |
| G M -DP-R-170 |
145 |
165x2 |
370 |
310 |
480 |
1320 |
9.4/12.7 |
400-1100 |
| G M -DP-R-195 |
165 |
214x2 |
400 |
380 |
550 |
1470 |
10.2/13.8 |
650-1500 |
| G M -DP-R-220 |
180 |
254x2 |
440 |
410 |
590 |
1620 |
13/17.5 |
800-1800 |
| Remark: The output rates depend on the individual extrusion process parameters. |
How to choose a most suitable type of screen changer for your extrusion line ?
After the equipment supplier making a size recommendation and then you should perform your own analysis to confirm appropriate sizing. That way, you will have the advantage of independent analyses and, best of all, there is no additional cost.
Learn the difference between price and cost. Be sure to take into consideration all of the variables and look at all the factors to determine the real cost of ownership for the screen changer. Some of the hidden variables to consider may be:
?Product quality.
?Maintenance, time and cost of parts.
?Process downtime and cost.
?Life expectancy for the equipment and amortized cost of ownership.
?Cost and availability of filtration media.
?Pressure loss and effect on line output and product quality.
?Operator safety.
?Required operator intervention and labor cost.
If all of these and other factors are taken into consideration, you can choose the most suitable solution, and then you can expect a much better return on investment.
To our customers
In the end I want to say something to our customers or some one may become our customers I Want to express my thanks to all my dear clients .Thank you for visiting our website and glad to see you. Anyone won't buy any products from strangers until they know each other better, but it's a long time for you to understand a strange supplier well, then how you can find a best supplier during so many factories is a problem! I believe that the honest and sincere is very imporant in the business. Though we are a new member here, but we have a full experience technician team and full sense of responsibilty work team, we will provide all the customers with perfect quality products and service. Thank you so much! ! !
Audited Supplier 
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