Continuous Screen Changer for Non-Woven Fabric Extrusion Machine

• Type: Profile Extruder
• Plastic Processed: PP
• Product Type: Granulating Extruder
• Model NO.: GM-DP-R SERIES
• Feeding Mode: One Feed
• Assembly Structure: Integral Type Extruder
• Screw: Twin-Screw
• Engagement System: Full Intermeshing
• Screw Channel Structure: Deep Screw
• Exhaust: Exhaust
• Automation: Automatic
• Computerized: Computerized
• Attribute: Auxiliary Part of Plastic Extruder
• Installation Position: Screw End and Extrusion Die
• Function: Polymer Melt Filter
• Main Material: High Quality of Alloy Steel
• Drive Mode: Hydraulically
• Heating Mode: Electric Heating Tube and Sheet
• Automatic or Not: Semi-Automatic
• Application Fields: Pipe/Cast Film/Sheet/Granules and So on
• Suitable Materials: PP/PE/PS/EPE/EPS/XPS and So on
• Size: Be Matched with Extruders
• Transport Package: Seaworthy Packaging
• Specification: SGS, CE
• Trademark: Gmach
• Origin: Zhengzhou
• HS Code: 8421299090
• Production Capacity: 200 Sets/Year

Product Description

Continuous screen changer for non-woven fabric 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 GM-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 structure and parameter data of GM-DP-R series of 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



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.


Technical data

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.

Tips for customers

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.