ProSciTech retains a large stock of apertures for electron microscopes. Except for apertures made from very thin materials, platinum and molybdenum apertures are counter-bored to minimise the aperture passage and hence contamination rates.
All of these apertures are made by the world's most experienced manufacturer, who pioneered aperture manufacturing for the first commercial electron microscopes.

Listed disk apertures are usually available ex our stock. Unlisted disk apertures are available (within six weeks) on request, but for these a minimum order of 10 apertures applies. If you have a regular requirement for an unlisted aperture, please advise; we will consider adding this to our range.

Note: Platinum apertures are made of platinum/iridium 95/5%.

User note - Cleaning apertures

1.85mm DISC APERTURE
OD = outer diameter, T = thickness.

MAP185X10P-0100 Disc aperture, OD1.85mm, T0.10mm, hole 100µm, Pt AUD76.00 stock?

2.0mm DISC APERTURES
For Cambridge, some FEI (Philips) Zeiss and Siemens electron microscopes.
OD = outer diameter, T = thickness.

MAP2X10M-0020 Disc aperture, OD2.0mm, T0.10mm, hole 20µm, Mo AUD79.00 stock?
MAP2X10M-0050 Disc aperture, OD2.0mm, T0.10mm, hole 50µm, Mo AUD91.00 stock?
MAP2X10M-0100 Disc aperture, OD2.0mm, T0.10mm, hole 100µm, Mo AUD88.00 stock?
MAP2X10M-0200 Disc aperture, OD2.0mm, T0.10mm, hole 200µm, Mo AUD88.00 stock?
MAP2X10M-0300 Disc aperture, OD2.0mm, T0.10mm, hole 300µm, Mo AUD88.00 stock?
MAP2X24P-0050 Disc aperture, OD2.0mm, T0.24mm, hole 50µm, Pt AUD73.00 stock?
MAP2X24P-0100 Disc aperture, OD2.0mm, T0.24mm, hole 100µm, Pt AUD72.00 stock?
MAP2X24P-0200 Disc aperture, OD2.0mm, T0.24mm, hole 200µm, Pt AUD72.00 stock?
MAP2X60P-0010 Disc aperture, OD2.0mm, T0.60mm, hole 10µm, Pt AUD136.00 stock?
MAP2X60P-0020 Disc aperture, OD2.0mm, T0.60mm, hole 20µm, Pt AUD84.00 stock?
MAP2X60P-0030 Disc aperture, OD2.0mm, T0.60mm, hole 30µm, Pt AUD76.00 stock?
MAP2X60P-003019 Disc aperture, OD2.0mm, T0.60mm, holes 19 x 30µm, Pt AUD86.00 stock?
MAP2X60P-0050 Disc aperture, OD2.0mm, T0.60mm, hole 50µm, Pt AUD74.00 stock?
MAP2X60P-005019 Disc aperture, OD2.0mm, T0.60mm, holes 19 x 50µm, Pt AUD86.00 stock?
MAP2X60P-0070 Disc aperture, OD2.0mm, T0.60mm, hole 70µm, Pt AUD73.00 stock?
MAP2X60P-0100 Disc aperture, OD2.0mm, T0.60mm, hole 100µm, Pt AUD72.00 stock?
MAP2X60P-0200 Disc aperture, OD2.0mm, T0.60mm, hole 200µm, Pt AUD72.00 stock?
MAP2X60P-0400 Disc aperture, OD2.0mm, T0.60mm, hole 400µm, Pt AUD72.00 stock?
MAP2X60P-0600 Disc aperture, OD2.0mm, T0.60mm, hole 600µm, Pt AUD72.00 stock?
MAP2X60P-0750 Disc aperture, OD2.0mm, T0.60mm, hole 750µm, Pt AUD73.00 stock?
MAP2X60TA-0030 Disc aperture, OD2.0mm, T0.60mm, hole 30µm, Ta AUD77.00 stock?
MAP2X60TA-0050 Disc aperture, OD2.0mm, T0.60mm, hole 50µm, Ta AUD71.00 stock?
MAP2X60TA-0070 Disc aperture, OD2.0mm, T0.60mm, hole 70µm, Ta AUD70.00 stock?
MAP2X60TA-0100 Disc aperture, OD2.0mm, T0.60mm, hole 100µm, Ta AUD72.00 10% discount for 10 stock?
MAP2X60TA-0120 Disc aperture, OD2.0mm, T0.60mm, hole 120µm, Ta AUD72.00 10% discount for 10 stock?
MAP2X60TA-0200 Disc aperture, OD2.0mm, T0.60mm, hole 200µm, Ta AUD76.00 stock?

3.0mm DISC APERTURES
For AEI, FEI (Philips), Cambridge, Zeiss, JEOL and Amray electron microscopes.
OD = outer diameter, T = thickness.

MAP3X25M-0025 Disc aperture, OD3.0mm, T0.25mm, hole 25µm, Mo AUD86.00 stock?
MAP3X25M-0050 Disc aperture, OD3.0mm, T0.25mm, hole 50µm, Mo AUD78.00 stock?
MAP3X25M-0100 Disc aperture, OD3.0mm, T0.25mm, hole 100µm, Mo AUD82.00 stock?
MAP3X25M-0200 Disc aperture, OD3.0mm, T0.25mm, hole 200µm, Mo AUD77.00 stock?
MAP3X25M-0250 Disc aperture, OD3.0mm, T0.25mm, hole 250µm, Mo AUD82.00 stock?
MAP3X25M-0500 Disc aperture, OD3.0mm, T0.25mm, hole 500µm, Mo AUD77.00 stock?
MAP3X25P-0005 Disc aperture, OD3.0mm, T0.25mm, hole 5µm, Pt AUD205.00 stock?
MAP3X25P-0010 Disc aperture, OD3.0mm, T0.25mm, hole 10µm, Pt AUD144.00 stock?
MAP3X25P-0015 Disc aperture, OD3.0mm, T0.25mm, hole 15µm, Pt AUD90.00 stock?
MAP3X25P-0020 Disc aperture, OD3.0mm, T0.25mm, hole 20µm, Pt AUD90.00 stock?
MAP3X25P-0030 Disc aperture, OD3.0mm, T0.25mm, hole 30µm, Pt AUD86.00 stock?
MAP3X25P-0040 Disc aperture, OD3.0mm, T0.25mm, hole 40µm, Pt AUD82.00 stock?
MAP3X25P-0050 Disc aperture, OD3.0mm, T0.25mm, hole 50µm, Pt AUD78.00 stock?
MAP3X25P-0070 Disc aperture, OD3.0mm, T0.25mm, hole 70µm, Pt AUD78.00 stock?
MAP3X25P-0100 Disc aperture, OD3.0mm, T0.25mm, hole 100µm, Pt AUD74.00 stock?
MAP3X25P-0150 Disc aperture, OD3.0mm, T0.25mm, hole 150µm, Pt AUD77.00 stock?
MAP3X25P-0200 Disc aperture, OD3.0mm, T0.25mm, hole 200µm, Pt AUD81.00 stock?
MAP3X25P-0300 Disc aperture, OD3.0mm, T0.25mm, hole 300µm, Pt AUD77.00 stock?
MAP3X25P-0400 Disc aperture, OD3.0mm, T0.25mm, hole 400µm, Pt AUD77.00 stock?
MAP3X25P-0600 Disc aperture, OD3.0mm, T0.25mm, hole 600µm, Pt AUD77.00 stock?
MAP3X25P-0800 Disc aperture, OD3.0mm, T0.25mm, hole 800µm, Pt AUD77.00 stock?

4.0mm DISC APERTURES
For ISI electron microscopes.
OD = outer diameter, T = thickness.

MAP4X20M-1000 Disc aperture, OD4.0mm, T0.20mm, hole 1000µm, Mo AUD86.00 stock?
MAP4X20P-0100 Disc aperture, OD4.0mm, T0.20mm, hole 100µm, Pt AUD81.00 stock?
MAP4X20P-0200 Disc aperture, OD4.0mm, T0.20mm, hole 200µm, Pt AUD81.00 stock?
MAP4X20P-1000 Disc aperture, OD4.0mm, T0.20mm, hole 1000µm, Pt AUD86.00 stock?

6.3mm DISC APERTURES
For ETEC electron microscopes.
OD = outer diameter, T = thickness.

MAP63X125M-0150 Disc aperture, OD6.3mm, T0.125mm, hole 150µm, Mo AUD102.00 stock?
MAP63X125M-0200 Disc aperture, OD6.3mm, T0.125mm, hole 200µm, Mo AUD102.00 stock?
MAP63X125P-0200 Disc aperture, OD6.3mm, T0.125mm, hole 200µm, Pt AUD102.00 stock?
MAP63X125P-0750 Disc aperture, OD6.3mm, T0.125mm, hole 750µm, Pt AUD93.00 stock?
MAP63X20M-0100 Disc aperture, OD6.3mm, T0.20mm, hole 100µm, Mo AUD102.00 stock?
MAP63X20M-0400 Disc aperture, OD6.3mm, T0.20mm, hole 400µm, Mo AUD102.00 stock?

8.0mm DISC APERTURES
For Jeol electron microscopes.
OD = outer diameter, T = thickness.

MAP8X25P-0750 Disc aperture, OD8.0mm, T0.25mm, hole 750µm, Pt AUD72.00 stock?
MAP8X25P-1000 Disc aperture, OD8.0mm, T0.25mm, hole 1000µm, Pt AUD63.00 stock?

10.5mm DISC APERTURES
For Stereoscan electron microscopes.
OD = outer diameter, T = thickness.

MAP105X25M-0500 Disc aperture, OD10.5mm, T0.25mm, hole 0500µm, Mo AUD102.00 stock?
MAP105X25M-1000 Disc aperture, OD10.5mm, T0.25mm, hole 1000µm, Mo AUD106.00 stock?

12.7mm DISC APERTURE
For Cambridge electron microscopes.
OD = outer diameter, T = thickness.

MAP127X20M-1000 Disc aperture, OD12.7mm, T0.20mm, hole 1000µm, Mo AUD107.00 stock?

20.0mm GUN APERTURE DISC
For Cambridge electron microscopes.
OD = outer diameter, T = thickness.

MAP20X23M-1250 Gun aperture, OD20.0mm, T0.23mm, hole 1250µm, Mo AUD176.00 stock?

APERTURE STRIPS
A full range of molybdenum and platinum aperture strips, with various hole size combinations, is available for all electron microscopes.

These apertures are of excellent quality and well priced. All standard strip apertures are listed in our price link. Special strips with holes down to 5um, or strips with more than four holes, or in other metals are available on request. We don't stock aperture strips, but they are available within two to six weeks from ordering.

JEOL
MASJ1-01 9mm Pt. JEOL 3-hole strip 40, 10, 10µm holes AUD473.00 stock?
MASJ1-02 9mm Pt. JEOL 3-hole strip 20, 50, 80µm holes AUD453.00 stock?
MASJ1-03 9mm Pt. JEOL 3-hole strip 10, 20, 100µm holes AUD473.00 stock?
MASJ1-04 9mm Pt. JEOL 3-hole strip 50, 100, 150µm holes AUD453.00 stock?
MASJ1-05 9mm Pt. JEOL 3-hole strip 100, 200, 300µm holes AUD453.00 stock?
MASJ1-06 9mm Pt. JEOL 3-hole strip 80, 100, 150µm holes AUD453.00 stock?
MASJ1-07 9mm Pt. JEOL 3-hole strip 200, 300, 400µm holes AUD453.00 stock?
MASJ1-08 9mm Pt. JEOL 3-hole strip 300, 300, 300µm holes AUD453.00 stock?
MASJ1-10 9mm Pt. JEOL 4-hole strip 500,200,100,50µm holes AUD503.00 stock?
MASJ2-01 10mm Pt. JEOL 4-hole strip 10, 20, 40, 50µm holes AUD623.00 stock?
MASJ2-02 10mm Pt. JEOL 4-hole strip 10, 20, 40, 60µm holes AUD623.00 stock?
MASJ2-03 10mm Pt. JEOL 4-hole strip 10, 20,100,200µm holes AUD623.00 stock?
MASJ2-04 10mm Pt. JEOL 4-hole strip 20, 40, 100,400µm holes AUD578.00 stock?
MASJ2-05 10mm Pt. JEOL 4-hole strip 20,100, 200,400µm holes AUD525.00 stock?
MASJ2-06 10mm Pt. JEOL 4-hole strip 50, 50, 70, 70µm holes AUD623.00 stock?
MASJ2-07 10mm Pt. JEOL 4-hole strip 50, 70, 110,170µm holes AUD617.00 stock?
MASJ2-08 10mm Pt. JEOL 4-hole strip 200,300,400,600µm holes AUD525.00 stock?
MASJ2-09 10mm Pt. JEOL 4-hole strip 150,150,200,300µm holes AUD525.00 stock?
MASJ2-50 10mm Mo. JEOL 4-hole strip 20,100,200,400µm holes AUD745.00 stock?

JEOL/ISI
MASJ3-01 17mm Pt. JEOL 4-hole strip 10, 20, 50, 100µm holes AUD623.00 stock?
MASJ3-02 17mm Pt. JEOL 4-hole strip 20, 30, 50, 70µm holes AUD623.00 stock?
MASJ3-03 17mm Pt. JEOL 4-hole strip 30, 30, 50, 50µm holes AUD505.00 stock?
MASJ3-04 17mm Pt. JEOL 4-hole strip 30, 30, 50, 100µm holes AUD505.00 stock?
MASJ3-05 17mm Pt. JEOL 4-hole strip 30, 50, 50, 50µm holes AUD505.00 stock?
MASJ3-06 17mm Pt. JEOL 4-hole strip 30, 50, 100,500µm holes AUD505.00 stock?
MASJ3-07 17mm Pt. JEOL 4-hole strip 50,100, 200,300µm holes AUD457.00 stock?
MASJ3-08 17mm Pt. JEOL 4-hole strip 50,100, 150,200µm holes AUD457.00 stock?
MASJ3-09 17mm Pt. JEOL 4-hole strip 50, 75, 100,200µm holes AUD457.00 stock?
MASJ3-10 17mm Pt. JEOL 4-hole strip 80, 80, 80, 80µm holes AUD505.00 stock?
MASJ3-11 17mm Pt. JEOL 4-hole strip 50, 50, 50, 50µm holes AUD505.00 stock?
MASJ3-12 17mm Pt. JEOL 4-hole strip 30, 50, 80, 100µm holes AUD505.00 stock?
MASJ3-13 17mm Pt. JEOL 4-hole strip 30, 50,100,200µm holes AUD505.00 stock?
MASJ3-14 17mm Pt. JEOL 4-hole strip 50, 50, 80, 200µm holes AUD505.00 stock?
MASJ3-15 17mm Pt. JEOL 4-hole strip 50, 80,100, 200µm holes AUD457.00 stock?
MASJ3-16 17mm Pt. JEOL 4-hole strip 70, 50, 30, 30µm holes AUD505.00 stock?
MASJ3-17 17mm Pt. JEOL 4-hole strip 50,100,200,500µm holes AUD457.00 stock?
MASJ3-18 17mm Pt. JEOL 4-hole strip 100,150,150,200µm holes AUD457.00 stock?
MASJ3-19 17mm Pt. JEOL 4-hole strip 100,100,200,200µm holes AUD457.00 stock?
MASJ3-20 17mm Pt. JEOL 4-hole strip 100, 25, 25, 10µm holes AUD623.00 stock?
MASJ3-21 17mm Pt. JEOL 4-hole strip 100,100,100,100µm holes AUD457.00 stock?
MASJ3-22 17mm Pt. JEOL 4-hole strip 100,200,200,400µm holes AUD457.00 stock?
MASJ3-23 17mm Pt. JEOL 4-hole strip 500,350,200,100µm holes AUD457.00 stock?
MASJ3-50 17mm Mo. JEOL 4-hole strip 50, 75, 100,200µm holes AUD425.00 stock?
MASJ3-51 17mm Mo. JEOL 4-hole strip 80, 80, 80, 80µm holes AUD425.00 stock?
MASJ3-52 17mm Mo. JEOL 4-hole strip 50, 50, 50, 50µm holes AUD425.00 stock?
MASJ3-53 17mm Mo. JEOL 4-hole strip 30, 50, 80, 100µm holes AUD425.00 stock?
MASJ3-54 17mm Mo. JEOL 4-hole strip 30, 50,100, 200µm holes AUD425.00 stock?
MASJ3-55 17mm Mo. JEOL 4-hole strip 50, 50, 80, 200µm holes AUD425.00 stock?
MASJ3-56 17mm Mo. JEOL 4-hole strip 50, 80,100, 200µm holes AUD425.00 stock?
MASJ3-57 17mm Mo. JEOL 4-hole strip 100,100,100,100µm holes AUD425.00 stock?

HITACHI
MASH1-01 45mm Pt. Hitachi 4-hole strip 10, 10, 20, 20µm AUD714.00 stock?
MASH1-02 45mm Pt. Hitachi 4-hole strip 10, 10, 20, 50µm AUD602.00 stock?
MASH1-03 45mm Pt. Hitachi 4-hole strip 10, 20, 30, 50µm AUD550.00 stock?
MASH1-04 45mm Pt. Hitachi 4-hole strip 10, 20, 20, 40µm AUD550.00 stock?
MASH1-05 45mm Pt. Hitachi 4-hole strip 10, 30, 50, 70µm AUD550.00 stock?
MASH1-06 45mm Pt. Hitachi 4-hole strip 10, 20, 40, 60µm AUD550.00 stock?
MASH1-07 45mm Pt. Hitachi 4-hole strip 20, 30, 50, 70µm AUD540.00 stock?
MASH1-09 45mm Pt. Hitachi 4-hole strip 30, 50, 70, 200µm AUD540.00 stock?
MASH1-10 45mm Pt. Hitachi 4-hole strip 30, 50, 100, 200µm AUD540.00 stock?
MASH1-11 45mm Pt. Hitachi 4-hole strip 50, 50, 70, 70µm AUD540.00 stock?
MASH1-12 45mm Pt. Hitachi 4-hole strip 100, 200, 300, 400µm AUD540.00 stock?
MASH1-13 45mm Pt. Hitachi 4-hole strip 150, 300, 300, 500µm AUD540.00 stock?
MASH1-14 45mm Pt. Hitachi 4-hole strip 200, 200, 300, 200µm AUD540.00 stock?
MASH1-50 45mm Mo. Hitachi 4-hole strip 20, 30, 50, 70µm AUD540.00 stock?
MASH1-51 45mm Mo. Hitachi 4-hole strip 20, 40, 80, 1000µm AUD619.00 stock?
MASH1-52 45mm Mo. Hitachi 4-hole strip 30, 50, 70, 200µm AUD540.00 stock?
MASH1-53 45mm Mo. Hitachi 4-hole strip 30, 50, 100, 200µm AUD540.00 stock?
MASH1-54 45mm Mo. Hitachi 4-hole strip 50, 50, 70, 70µm AUD540.00 stock?
MASH1-55 45mm Mo. Hitachi 4-hole strip 100, 200, 300, 400µm AUD540.00 stock?
MASH1-56 45mm Mo. Hitachi 4-hole strip 150, 300, 300, 500µm AUD540.00 stock?
MASH1-57 45mm Mo. Hitachi 4-hole strip 200, 200, 300, 200µm AUD540.00 stock?
MASH1-58 45mm Mo. Hitachi 4-hole strip 300, 70, 50, 30µm AUD540.00 stock?
MASH2-01 41mm Pt. Hitachi 4-hole strip 70, 30, 20, 20µm AUD550.00 stock?

ZEISS
MASZ1-01 18.5mm Pt. Zeiss 3-hole strip 50, 50, 50µm holes AUD242.00 stock?
MASZ1-02 18.5mm Pt. Zeiss 3-hole strip 25, 25, 25µm holes AUD279.00 stock?
MASZ1-03 18.5mm Pt. Zeiss 3-hole strip 25, 50, 100µm holes AUD285.00 stock?
MASZ1-04 18.5mm Pt. Zeiss 3-hole strip 50, 200, 500µm holes AUD260.00 stock?
MASZ1-50 18.5mm Mo. Zeiss 3-hole strip 150, 150, 150µm AUD218.00 stock?
MASZ1-51 18.5mm Mo. Zeiss 3-hole strip 150, 200, 250µm AUD210.00 stock?
MASZ2-01 31mm Pt. Zeiss 4-hole strip 50, 30, 10, 10µm holes AUD650.00 stock?
MASZ3-01 31mm Pt. Zeiss 4-hole strip 10, 10, 20, 50µm holes AUD563.00 stock?