The EM-Tec filter disc holders are developed to hold flat discs type filters to enable SEM / EDS analysis. The EM-Tec filter disc holders comprise of two parts; a flat base plate to hold the filter disc and a cap which acts as clamping ring to keep the filter flat on the base. The cap is secured with three screws at the side of the base plate. The base plate and clamping ring are made from vacuum aluminium; the screws are made form stainless steel. The EM-Tec filter disc holders are available for 13, 25, 35, 47, 76 and 90mm filter discs. Custom diameters can be made on request. The edge of the cap has a 45° angle to avoid contribution of aluminium to the EDS spectra. The EM-Tec filter disc holders enable SEM / EDS analysis of particles, fibres and debris on the filters. They are available with:
Additionally available is the EM-Tec XL 100 multi-filter holder, which has been developed to hold up to 4 filter disc holders F13 / F25 / F35 and F47 in the SEM chamber. The EM-Tec XL 100 is available for filter disc holders with pin stubs or M4 threaded holes.
Capacity and dimensions for the EM-Tec filter disc holders:
Product # |
Type |
Filter sizes |
Dimensions w/o pin |
Open filter area |
Securing method |
SEM stage comp. |
F13 |
Ø13mm |
Ø17.0x9.5mm |
Ø11mm |
Clamp ring/screws |
Standard 3.2mm pin |
|
F13 |
Ø13mm |
Ø17.0x9.5mm |
Ø11mm |
Clamp ring/screws |
M4 thread |
|
F13 |
Ø13mm |
Ø17.0x9.5mm |
Ø11mm |
Clamp ring/screws |
Ø14mm JEOL stub |
|
F25 |
Ø25mm |
Ø29.5x9.5mm |
Ø20mm |
Clamp ring/screws |
Standard 3.2mm pin |
|
F25 |
Ø25mm |
Ø29.5x9.5mm |
Ø20mm |
Clamp ring/screws |
M4 thread |
|
F25 |
Ø25mm |
Ø29.5x9.5mm |
Ø20mm |
Clamp ring/screws |
Ø14mm JEOL stub |
|
F35 |
Ø35mm |
Ø39.0x9.5mm |
Ø30mm |
Clamp ring/screws |
Standard 3.2mm pin |
|
F35 |
Ø35mm |
Ø39.0x9.5mm |
Ø30mm |
Clamp ring/screws |
M4 thread |
|
F35 |
Ø35mm |
Ø39.0x9.5mm |
Ø30mm |
Clamp ring/screws |
Ø14mm JEOL stub |
|
F47 |
Ø47mm |
Ø51.0x9.5mm |
Ø42mm |
Clamp ring/screws |
Standard 3.2mm pin |
|
F47 |
Ø47mm |
Ø51.0x9.5mm |
Ø42mm |
Clamp ring/screws |
M4 thread |
|
F47 |
Ø47mm |
Ø51.0x9.5mm |
Ø42mm |
Clamp ring/screws |
Ø14mm JEOL stub |
|
F76 |
Ø76mm |
Ø82.5x9.5mm |
Ø71mm |
Clamp ring/screws |
Standard 3.2mm pin |
|
F76 |
Ø76mm |
Ø82.5x9.5mm |
Ø71mm |
Clamp ring/screws |
M4 thread |
|
F76 |
Ø76mm |
Ø82.5x9.5mm |
Ø71mm |
Clamp ring/screws |
Ø14mm JEOL stub |
|
F90 |
Ø90mm |
Ø97.0x9.5mm |
Ø85mm |
Clamp ring/screws |
Standard 3.2mm pin |
|
F90 |
Ø90mm |
Ø97.0x9.5mm |
Ø85mm |
Clamp ring/screws |
M4 thread |
|
F90 |
Ø90mm |
Ø97.0x9.5mm |
Ø85mm |
Clamp ring/screws |
Ø14mm JEOL stub |
Please contact us if need you need filter disc holders other than listed on this page. Custom disc filter holders up to Ø110mm diameter can be manufactured upon request.
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