EM-Tec filter disc holders for SEM / EDS analysis
EM-Tec filter disc holders were developed to hold flat discs-type filters to enable SEM / EDS analysis. 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. EM-Tec filter disc holders are available for 13, 25, 35, 47 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. EM-Tec filter disc holders enable SEM / EDS analysis of particles, fibres and debris on the filters. They are available with:
- Standard pin to fit SEMs using a standard pin; Thermo Fisher, ThermoFisher Scientific/FEI, Philips, Tescan, Phenom,  Cambridge Instruments, Leica and CamScan SEMs.
- M4 threaded hole compatible with Hitachi SEMs, FE-SEMs and table top SEMs and with EM-Tec versatile SEM stage adaptors
- Ø14mm JEOL SEM stubs compatible with JEOL and EM-Tec stage adaptors with a Ø14mm connection
Additionally available is the EM-Tec XL 100 multi-filter holder, which has been developed to hold up to four filter disc holders in the SEM chamber. The XL 100 is available for filter disc holders with SEM pin stubs or M4 threaded holes.

Capacity and dimensions of EM-Tec filter disc holders:
Product # | Type | Filter sizes | Dimensions without pin | Securing method | SEM stage compatibility |
12-000283 | F13 | Ø13mm | Ø17.0×9.5mm | Clamp ring/screws | Standard 3.2mm pin |
12-000383 | F13 | Ø13mm | Ø17.0×9.5mm | Clamp ring/screws | M4 thread |
12-000683 | F13 | Ø13mm | Ø17.0×9.5mm | Clamp ring/screws | Ø14mm JEOL stub |
12-000285 | F25 | Ø25mm | Ø29.5×9.5mm | Clamp ring/screws | Standard 3.2mm pin |
12-000385 | F25 | Ø25mm | Ø29.5×9.5mm | Clamp ring/screws | M4 thread |
12-000685 | F25 | Ø25mm | Ø29.5×9.5mm | Clamp ring/screws | Ø14mm JEOL stub |
12-000291 | F35 | Ø35mm | Ø39.0×9.5mm | Clamp ring/screws | Standard 3.2mm pin |
12-000391 | F35 | Ø35mm | Ø39.0×9.5mm | Clamp ring/screws | M4 thread |
12-000691 | F35 | Ø35mm | Ø39.0×9.5mm | Clamp ring/screws | Ø14mm JEOL stub |
12-000287 | F47 | Ø47mm | Ø51.0×9.5mm | Clamp ring/screws | Standard 3.2mm pin |
12-000387 | F47 | Ø47mm | Ø51.0×9.5mm | Clamp ring/screws | M4 thread |
12-000687 | F47 | Ø47mm | Ø51.0×9.5mm | Clamp ring/screws | Ø14mm JEOL stub |
12-000290 | F90 | Ø90mm | Ø97.0×9.5mm | Clamp ring/screws | Standard 3.2mm pin |
12-000390 | F90 | Ø90mm | Ø97.0×9.5mm | Clamp ring/screws | M4 thread |
12-000690 | F90 | Ø90mm | Ø97.0×9.5mm | 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.
Ordering information:
Filter disc holders for SEM pin stubs
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EM-Tec F13 filter disc holder for Ø13mm filters – pin
EM-Tec F13 filter disc holder for Ø13mm filters – pin (each)
£37.30 Add to basket -
EM-Tec F25 filter disc holder for Ø25mm filters – pin
EM-Tec F25 filter disc holder for Ø25mm filters – pin (each)
£42.57 Add to basket -
EM-Tec F47 filter disc holder for Ø47mm filters – pin
EM-Tec F47 filter disc holder for Ø47mm filters – pin (each)
£46.96 Add to basket -
EM-Tec F90 filter disc holder for 90mm filters – pin
EM-Tec F90 filter disc holder for 90mm filters – pin (each)
£176.49 Add to basket -
EM-Tec F35 filter disc holder for Ø35mm filters – pin
EM-Tec F35 filter disc holder for Ø35mm filters – pin (each)
£82.95 Add to basket -
EM-Tec F25M filter disc holder for Ø25mm filters, brass, M4
EM-Tec F25M filter disc holder for Ø25mm filters, brass, M4 (each)
£75.74 Add to basket
Filter disc holders for JEOL SEMs
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F13 filter disc holder for Ø13mm filters, Ø14mm JEOL stub
EM-Tec F13 filter disc holder for Ø13mm filter s- Ø14mm JEOL stub (each)
£37.30 Add to basket -
F25 filter disc holder for Ø25mm filters, Ø14mm JEOL stub
EM-Tec F25 filter disc holder for Ø25mm filters – Ø14mm JEOL stub (each)
£42.57 Add to basket -
F47 filter disc holder for Ø47mm filters, Ø14mm JEOL stub
EM-Tec F47 filter disc holder for Ø47mm filters – Ø14mm JEOL stub (each)
£46.96 Add to basket -
EM-Tec F90 disc holder for 90mm filters, 14mm JEOL stub
EM-Tec F90 filter disc holder for 90mm filters – 14mm JEOL stub (each)
£178.40 Add to basket -
F35 filter disc holder for Ø35mm filters, Ø14mm JEOL stub
EM-Tec F35 filter disc holder for Ø35mm filters- Ø14mm JEOL stub (each)
£82.95 Add to basket
Filter disc holders for Hitachi M4
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EM-Tec F13 filter disc holder for Ø13mm filters – M4
EM-Tec F13 filter disc holder for Ø13mm filters – M4 (each)
£36.43 Add to basket -
EM-Tec F25 filter disc holder for Ø25mm filters – M4
EM-Tec F25 filter disc holder for Ø25mm filters – M4 (each)
£41.69 Add to basket -
EM-Tec F47 filter disc holder for Ø47mm filters – M4
EM-Tec F47 filter disc holder for Ø47mm filter s- M4 (each)
£46.08 Add to basket -
EM-Tec F90 filter disc holder for 90mm filters – M4
EM-Tec F90 filter disc holder for 90mm filters – M4 (each)
£171.72 Add to basket -
EM-Tec F35 filter disc holder for Ø35mm filters – M4
EM-Tec F35 filter disc holder for Ø35mm filters- M4 (each)
£82.07 Add to basket