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Photo Etching

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Photo Etched Fine MicroEtch® Screens

MicroEtch® Screens are manufactured by Tech-Etch using photo etching or photo chemical milling technology. Unlike stamping, photoetching yields a burr-free product resulting in cleaner more efficient screens with greater material integrity. These superior quality screens feature tighter tolerance hole sizes and greater dimensional stability than woven wire mesh, which makes them ideal in applications requiring frequent cleaning or in devices where there is mechanical contact. Unlike woven wire mesh screens, the fixed photoetched openings will not change through use. Photoetching also enables designers to specify a conical hole, which facilitates liquid filtration and back flow cleaning.

Typical applications of MicroEtch® Screens are filters used in the medical market, hydraulic valve screens, fuel filters, laser light filters, extruding screens, as well as particle separation and sizing. These tight tolerance screens are primarily produced from Stainless Steel, but other materials are available.

Tech-Etch, Inc. offers a standard line of screens with holes in a 60° or 90° pattern that are available with a usable perforated area of at least 18” x 21” as shown on the chart below. Other sizes and custom shapes are also available.
MicroEtch Screens
Holes offered in conical profiles as illustrated by the sample and cross section profile below.

Holes 60 Degrees  Conical Profile

Holes offered in straight profiles as illustrated by the sample and cross section profile below.

Holes 90 Degrees  Straight Profile

Tech-Etch MicroEtch® Screen Product List

Part No.
Thickness
Hole Size
Hole Profile
Pitch
Hole Orientation
% Open
2-1*
0.002
0.0030
Straight
0.0060
60
23
2-2*
0.002
0.0030
Conical
0.0060
60
23
5-1
0.005
0.0060
Conical
0.0112
60
27
5-3
0.005
0.0060
Straight
0.0100
90
28
5-4
0.005
0.0060
Conical
0.0120
60
21
50-1
0.005
0.0110
Straight
0.0170
60
38
6-6
0.006
0.0060
Conical
0.0155
90
11
6-5
0.006
0.0080
Conical
0.0155
90
21
8-7
0.008
0.0070
Conical
0.0220
60
9
8-5
0.008
0.0090
Conical
0.0155
90
26
8-6
0.008
0.0090
Straight
0.0155
90
26
8-8
0.008
0.0090
Conical
0.0155
60
31
8-3
0.008
0.0100
Conical
0.0220
60
19
8-2
0.008
0.0120
Conical
0.0220
60
27
80-1
0.008
0.0140
Conical
0.0220
60
37
14-2
0.014
0.0150
Conical
0.0310
60
21
140-1
0.014
0.0180
Straight
0.0310
60
31
150-1
0.015
0.0180
Straight
0.0310
60
31
Notes:
  1) All above parts are supplied in a sheet size of 24" x 22" with a minimum perforated area of 18" x 21".
  2) Material is Stainless Steel Alloy 316/316L. * 2-1 and 2-2 Material is Alloy 304/304L.
  3) Available tempers are Annealed, 1/4 Hard, 1/2 Hard and Full Hard.
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