Screens, Meshes, Filtration, & Micro Fluidic Devices

Screens and Meshes (PhotoPore®)

VACCO’s PhotoPore® screens and meshes are etched from solid sheets of material offering superior mechanical strength, excellent electrical conductivity, and reliable integrity of pore size regardless of flow characteristics. VACCO’s PhotoPore® screens can be made of titanium, nitinol, stainless steel, Kapton® nickel, copper, or any other material etched at VACCO, see Technical and Design Data.

Patterns are wide ranging, from: round, elongated, hexagonal, square, octagonal, rectangular, and so on. All inside corner radii will be equal to material thickness, and the hole must be equal to or larger then the material thickness. With VACCO you have the flexibility to achieve some transmission and open area issues you cannot achieve through other methods of manufacturing.

Through hole features are normally etched equally (50/50) from both sides of the process sheet. VACCO can etch at different proportions (i.e. 80/20 or 60/40) which can produce conical-shaped through hole features, helping to achieve unique flow characteristics benefiting certain applications. Review the diagram below showing the difference of a 50/50 etch profile compared to a 80/20 etch profile.

Application examples of screens & meshes:

Medical reconstructive surgery mesh
Filtration (minimum 75 microns)
Extrusion screen for fiber and plastic
Protective barrier filter for contamination
Faraday shielding for medical sensors
Air flow control for paper transport
Sorting & Sieving
EMI/RFI Shielding
Carrier and Supports
Many others

Screens with Boarders, Frames, & Mounting Holes

Elongated Holes

Standard PhotoPore Listing

Click here for PDF version of the PhotoPore Listing page or Click here for a PDF of an article from Filtration News 2005 about PhotoPore Screens.

Standard VACCO Listing for PhotoPore Sheets used for multiple different functions
List shows perforated patterns, for pricing details contact VACCO directly

Part #	Thick	Hole Size	Tolerance	On-Center	Array	~Open%
2-5-01	0.002	0.005	+/-0.001	0.008	60 deg.	35%
4-6-01	0.004	0.006	+/-0.001	0.010	60 deg.	15%
5-7-01	0.005	0.007	+/-0.001	0.012	60 deg.	17%
5-11-02	0.005	0.011	+/-0.001	0.017	60 deg.	38%
8-9-01	0.008	0.009	+/-0.0015	0.0155	60 deg.	31%
8-12-02	0.008	0.012	+/-0.0015	0.018	60 deg.	40%
10-13-01	0.010	0.013	+/-0.0015	0.020	60 deg.	38%
10-15-02	0.010	0.015	+/-0.0015	0.025	90 deg.	28%
15-20-01	0.015	0.020	+/-0.002	0.035	60 deg.	30%

General Notes of Standard PhotoPore Perforated Products:

Produced using 300 Series Stainless Steel
Minimum Etched Perforated Area is 16” x 16”
Approximate Overall Sheet Size is 17” x 17”
Standard PhotoPore Products may contain some unetched holes

General Notes for placing purchase order:

F.O.B. South El Monte, CA
Minimum Purchase Order required is two sheet of any one give part number

VACCO Filtration

VACCO is the original patent holder for the EDF (Etched Disc Filter), which is used on mission critical programs such as the Space Shuttle, military and commercial satellites, and submarines (688, Trident, Seawolf, and Los Angeles Class).

VACCO's unique etched disc filter is the industry standard for absolute filtration of gases and liquids. Each filter consists of hundreds of stacked, chemically micro-machined discs with precise flow paths. Please Contact VACCO’s engineering department for application specific information.

Large 30" EDF Element
2-50 Microns

Micro-Machined Disc
with Flow Channels

Small EDF Element

VACCO Micro Fluidic Devices (ChEMS ®)

VACCO hold patents on the ChEMS ® Technology (Chemically Etched Miniature Systems) developed for NASA’s min-stat spacecraft requirements. These miniature systems can include flow control, valves, regulators, sensors, heaters, filters, etc. Diffusion bonding is utilized for components assembly.

Please Contact VACCO’s engineering department for application specific information.

Flow Control

Miniature Etched Channels

Miniature System Components

Filtertek Filtration

VACCO’s sister company, Filtertek , is another valuable resource for your filtration needs. Since 1965, Filtertek has been designing and manufacturing filters for the automotive, medical, and commercial markets. They create filtration solutions that meet or exceed customer requirements for performance, durability, delivery, and cost.

For additional information:
Filtertek
11411 Price Road
Hebron , IL 60034
Toll-Free: (800) 248-2461
Sales: (815) 648-2416
Web: www.filtertek.com

PTI Filtration

VACCO's sister company, PTI, is a world leader in the design, development, manufacturing, and distribution of high technology filtration equipment. PTI provides service and products to the global aerospace, defense, and industrial markets.

For additional information:
PTI
501 Del Norte Blvd.
Oxnard, CA 93030
E-mail: filters@ptitechnologies.com
Web: www.ptitechnologies.com