Filter Screens for Polymer Melt Filtration -- Overview

Made of high-tensile strength, Stainless Steel wire



high tensile filter screen for polymer melt filtration in plastics extrusion Hitech

HIGH-TECHNOLOGY CORP. is the world's leading supplier of filter screens for use with belt-type or ribbon- type continuous screen changers.  Filter ribbons are furnished in rolls with a standard length of 120' (36.5 meters) or 60’ (18.3 meters). The yield of such a roll is equivalent to several hundred 'screen packs' in a conventional screen changer and lasts many months in non-stop operation.

The filter screen used in HITECH™ screen changers is woven from high-tensile strength stainless steel wire, in the Reverse Dutch Twill pattern. Screens are ultra-sonically cleaned and packed in our plant in Hackensack, New Jersey and are available for immediate delivery world-wide.

HITECH™ filter ribbons can be used with all screen changers of similar design, and can be supplied in non-standard widths and lengths to suit the customer’s needs. We also supply filter screens for all other makes of ribbon-style screen changers. Please contact our screen department for more information.

The following chart lists the standard mesh screens used with HITECH screen changers. 


HITECH™ FILTER SCREENS

Made of high tensile strength, stainless steel wire

Particle size retention*
 
Weave**
Microns
Inches
Equivalent
"Square Mesh"
Value
A
48/10-P
400
.0160"

48

B
72/15-P
300
.0120"
62
C
72/15-Y
250
.0100"
70
D
132/14-P
220
.0090"
78
E
132/14-Y
200
.0080"
85
F
132/18-P
175
.0070"
90
G
132/18-Y
160
.0065"
95
H
152/30-P
130
.0050"
120
I
152/30-Y
115
.0045"
135
J
250/40-P
90
.0035"
180
K
250/40-Y
75
.0030"
200
L
338/37-Y
55
.0022"
280
M
400/120-Y
30
.0012"
500

* Particle size is the diameter of the smallest particle that will be caught and retained by the screen.

** Reverse Dutch Twill weave.

High-Technology Corp. offers fully automatic, continuous screen changers that are used for polymer melt filtration in every segment of plastics processing including: blown film, blow molding, sheet and film extrusion, filaments & fibers, pipe and profile, pelletizing, BIAX (BOPP and BOPS).   HITECH™  melt filters are designed to be used with all families of thermoplastics, including Polyethylene (LDPE, LLDPE and HDPE) Polystyrene (PS, HIPS), Polycarbonate, ABS, Acrylic, Flexible PVC, Nylon (PA 6, PA 66, PA 11) and Polyesters,  as well as a wide range of engineering resins.

 

 

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HITECH™ The Leaders in Continuous Melt Filtration since 1969