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Product Code E461
Price £260 ex. VAT

We stock a range of milled polypropylene (solvent safe) chucks compatible with the Ossila Spin Coater. The interchangeable chucks have a push-fit base that fits firmly and securely onto the spin coater coupling.

For customers wanting to use their own substrate system, we can produce custom chucks to fit your substrates. Simply contact us with your requirements (specifying the length, width, and depth of your substrate) and we can determine the right chuck for you.

Specify three dimensions (length, width, and depth) when ordering a custom chuck

Alternatively you can download the '.stl' file for free to manufacture your own chuck (see below).

Further information

The spin coating chuck has a recess designed to hold the substrate securely in place by friction and centrifugal force, while allowing excess solution to escape.

This eliminates the need for a vacuum and significantly reduces substrate warpage for better film quality as shown in the figure below.

Vacuum warping of spin coater substrate
The effect of vacuum warpage during spin coating is shown in the left hand image of a thin film of fluorescent OLED material of approximately 70 nm thickness. By eliminating the vacuum during the spin coating process a much more uniform film can be obtained (right).


spin coater chuck substrate recess square on spin coater chuck substrate recess edge on
In the Ossila spin coater chucks the substrates sits in a recess which holds it securely in place.


Changing Chucks

The Ossila spin coater has been designed to make it quick and easy to change chucks so that many different substrate sizes can be accommodated.

Changing Ossila Spin Coater Chucks

This video shows how easy it is to remove the spin coater substrate chucks, which have a push-fit connection to the motor coupling in the spin coater, for cleaning or interchanging with other spin coater chucks.

The custom milled polypropylene chucks allow for mounting substrates of a range of varying shapes and sizes.

The recessed design holds the substrate securely in place without a vacuum, reducing substrate warpage for better film quality.

Further information

For more details contact us to discuss your specific requirements.


E461 chuck for 20 x 15 x 1 mm substrates and 50 x 50 x 1 mm substrates

20mm x 15mm and 50mm spin coater chuck diagram


This two-level chuck offers full flexibility across our substrate ranges. The additional corner recesses on both levels also ensure excess solution can still escape. Further more it is ideal for use with our carrier plates allowing you to adapt the chuck to work with custom or alternative substrate sizes.


E463 chuck for 76 x 26 x 1 mm microscope slides and 20 x 15 x 1 mm substrates

Spin coater chuck for microscope slide


E462 chuck for 1 x 1 inch  and 2 x 2 inch square substrates (25.4 x 25.4 x 1 mm, 50.8 x 50.8 x 1 mm)

1 inch x 1 inch and 2 inch x 2 inch spin coater chuck diagram


Custom Chucks

If you would like to manufacture your own spin coating chuck by 3D printing or other means, you can download the appropriate files below. If you've any questions just get in touch with the Ossila office.


  • Maximum diameter of chuck: 85 mm
  • Maximum depth of substrate: 2.5 mm
  • Maximum width of substrate: 55 mm

For more on the Ossila Spin Coater visit the Spin Coater Prices and Specification page or contact us to discuss your specific requirements.

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