SKU | Lid Dim | Top OD | Height | Bottom OD | Top Wall Thickness | Capacity | Material |
---|---|---|---|---|---|---|---|
AC2001 | Lid φ20mm | φ20mm | 16mm | φ17mm | 1.5mm | 3ml | 99% Alumina |
AC2002 | Cover φ29×5mm | φ25mm | 18mm | φ19mm | 1.5mm | 4ml | 99% Alumina |
AC2003 | Cover φ29×5mm | φ25mm | 21mm | φ17mm | 1.5mm | 5ml | 99% Alumina |
AC2004 | Cover φ36×5mm | φ30mm | 27mm | φ21mm | 2mm | 10ml | 99% Alumina |
AC2005 | Lid φ30mm | φ28mm | 33mm | φ19mm | 2.2mm | 10ml | 99% Alumina |
AC2006 | Cover φ41×3mm | φ36mm | 28mm | φ21mm | 2mm | 15ml | 99% Alumina |
AC2007 | Cover φ46×6mm | φ38mm | 34mm | φ24mm | 2mm | 20ml | 99% Alumina |
AC2008 | Lid φ35×3mm | φ36mm | 40mm | φ25mm | 3mm | 20ml | 99% Alumina |
AC2009 | Cover φ46×6mm | φ39mm | 39mm | φ25mm | 2mm | 25ml | 99% Alumina |
AC2010 | Cover φ50×8mm | φ45mm | 40mm | φ27mm | 2mm | 30ml | 99% Alumina |
AC2011 | Lid φ40mm | φ39mm | 48mm | φ25mm | 2.5mm | 30ml | 99% Alumina |
AC2012 | Cover φ50×8mm | φ45mm | 46mm | φ30mm | 2.5mm | 40ml | 99% Alumina |
AC2013 | Cover φ58×7mm | φ50mm | 49mm | φ32mm | 2.9mm | 50ml | 99% Alumina |
AC2014 | Lid φ50mm | φ48mm | 52mm | φ31mm | 3.2mm | 50ml | 99% Alumina |
AC2015 | Cover φ70×12mm | φ60mm | 60mm | φ35mm | 2mm | 100ml | 99% Alumina |
AC2016 | Lid φ60mm | φ58mm | 66mm | φ35mm | 4mm | 100ml | 99% Alumina |
AC2017 | Cover φ82×11mm | φ75mm | 68mm | φ45mm | 3mm | 150ml | 99% Alumina |
AC2018 | Lid φ66mm | φ66mm | 76mm | φ40mm | 4mm | 150ml | 99% Alumina |
AC2019 | Lid φ75mm | φ73mm | 90mm | φ50mm | 4.2mm | 200ml | 99% Alumina |
AC2020 | Lid φ85mm | φ83mm | 96mm | φ50mm | 4mm | 300ml | 99% Alumina |
AC2021 | Lid φ90×5mm | φ89mm | 103mm | φ50mm | 4mm | 350ml | 99% Alumina |
AC2022 | Lid φ100mm | φ100mm | 117mm | φ62mm | 5.2mm | 500ml | 99% Alumina |
AC2023 | Lid φ115mm | φ111mm | 128mm | φ70mm | 6mm | 750ml | 99% Alumina |
AC2024 | Lid φ125mm | φ125mm | 145mm | φ77mm | 6mm | 1000ml | 99% Alumina |
MUST-READ Before Ordering
The Lid or Cover for Alumina Crucible is only for dustproof rather than sealed use. Please do not place the order if you need a air-tight crucible.

Crucible Dimension Notice
There are big difference of Alumina Crucible dimensions between before and after firing.
If you are particluar with the crucible size, please contact us to provide you the actual dimensions of the crucible you are interested.
MUST-KNOW After Receiving
- Please bake the crucible in the oven at 105℃ for 120 minutes to remove moisture content before the first use.
- DO NOT use open flame or direct heating equipment to heat the crucible, please make sure to use box muffle furnace with temperature control system.
- DO NOT heat up or cool down too fast, The temperature change below 1200℃ should be less than 5℃/ min, and the temperature change above 1200℃ should be less than 4℃/ min.
- When cooling the crucible, it is recommended to turn on the temperature control to cool down. Turning off the power at high temperature may lead to product cracking if the cooling speed is too fast in the early cooling stage.
- The distance between the product and the heating element (such as carbon tube, silicon molybdenum rod or heating wire, etc.) should be >5cm.
- The bottom of large crucible should not contact directly with the bottom of furnace. It is suggested to use corundum rubber pad or other temperature-resistant materials to lift the crucible (as shown in the right picture) to form air convection and extend the service life of the crucible.

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