PP Hollow Sheet Extrusion Machine Continuous Screen Changer

• Type: Sheet Extruder
• Plastic Processed: PP
• Product Type: Extrusion Molding Machine
• Feeding Mode: One Feed
• Assembly Structure: Integral Type Extruder
• Screw: Twin-Screw
• Model NO.: GM-DP-R series
• Screw Channel Structure: Deep Screw
• Exhaust: Exhaust
• Automation: Automatic
• Computerized: Computerized
• Attribute: Auxiliary Part of Plastic Extruder
• Function: Polymer Melt Filtration
• Applicable: PP/PE/PS/ABS/XPS/EPS/EPE and So on
• Size: Various Types to Be Matched with Extruders
• Transport Package: Seaworthy Packaging
• Specification: SGS
• Trademark: Gmach
• Origin: Zhengzhou
• HS Code: 8421299090
• Production Capacity: 200 Sets/Year

Product Description

PP  sheet extrusion machine  continuous screen changer


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 /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 ·


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

Finished product pictures 

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.

Technical data

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