Alumina Crucible
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Alumina Crucibles

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Product Description

Alumina Crucibles – High-Purity Ceramic Crucibles for Extreme Temperatures

M-Kube Enterprise supplies high-purity alumina crucibles made from premium aluminum oxide (Al₂O₃), delivering unmatched thermal performance and chemical resistance. Designed for high-temperature applications, these ceramic crucibles are essential in materials testing, analytical labs, metallurgy, and research environments throughout the United States.

Whether you’re melting metals, conducting calcination, or preparing samples, our alumina ceramic crucibles offer the purity, durability, and precision your process demands.

Standard and Custom Alumina Crucibles for Lab and Industrial Use

We offer a wide range of standard alumina crucibles—including cylindrical, conical, rectangular, and boat-shaped variants—along with custom crucible solutions tailored to your specifications.

Our customization application capabilities include:

  • Custom shapes and wall thicknesses
  • Open- or closed-top options, with or without lids
  • Polishing, labeling, and engraving
  • Support for small-batch R&D and large-volume manufacturing
  • Precision tolerances up to ±0.05mm

At M-Kube Enterprise, we work closely with clients in the USA to ensure reliable sourcing and custom engineering for their ceramic requirements. Some of the standard dimensions are

S.No Product Code Description
1 Al-CoC-027-022-015-00003-L 99.8% Alumina Conical crucible + Lid,
Top OD 27 mm, Bottom OD 22 mm, H 15 mm (5 ml)
2 Al-CoC-027-022-015-00003 99.8% Alumina Conical crucible,
Top OD 27 mm, Bottom OD 22 mm, H 15 mm (5 ml)
3 Al-CoC-031-019-029-00001 99% Alumina Conical Crucible,
Top OD 31 mm, Bottom OD 19 mm, H 29 mm
4 Al-CoC-031-019-029-00001-OL 99% Alumina Conical Crucible LID ONLY
Top OD 31 mm, Bottom OD 19 mm, H 29 mm
5 Al-CoC-040-022-040-00002 99% Alumina Conical Crucible,
Top OD 40 mm, Bottom OD 22 mm, H 40 mm (25 ml)
6 Al-CyC-013-000-025-00014-L 99.7% Alumina Cylindrical crucible + Lid
OD 13 mm, H 25 mm (1-2 ml)
7 Al-CyC-013-000-025-00014 99.7% Alumina Cylindrical crucible
OD 13 mm, H 25 mm (1-2 ml)
8 Al-CyC-018-015-025-00023 99.8% Alumina cylindrical crucible
OD 18mm ID 15mm Height 25mm
9 Al-CyC-016-000-050-00006 99% Alumina Cylindrical Crucible
OD 16 mm, H 50 mm (5 ml)
10 Al-CyC-016-000-056-00007 99% Alumina Cylindrical Crucible
OD 16 mm, H 56 mm (6 ml)
11 Al-CyC-019-000-035-00008 99% Alumina Cylindrical Crucible
OD 19 mm, H 35 mm (6 ml)
12 Al-CyC-022-000-020-00001 99% Alumina Cylindrical Crucible,
OD 22 mm, H 20 mm (5 ml)
13 Al-CyC-022-000-020-00003-L 99.8% Alumina Cylindrical crucible + Lid
OD 22 mm, H 20 mm (1-2 ml)
14 Al-CyC-022-000-020-00003 99.8% Alumina Cylindrical Crucible
OD 22 mm, H 20 mm (1-2 ml)
15 Al-CyC-016-000-044-00019 99% Alumina Cylindrical Crucible
OD 16 mm, H 44 mm (4 ml)
16    
17 Al-CyC-019-000-035-00018-L 99% Alumina Cylindrical Crucible+Lid
OD 19 mm, H 35 mm (6 ml)
18 Al-CyC-022-000-027-00005 99.8% Alumina Cylindrical Crucible
OD 22 mm, H 27 mm (7 ml)
19 Al-CyC-022-000-027-00005-L 99.8% Alumina Cylindrical Crucible+Lid
OD 22 mm, H 27 mm (7 ml)
20 Al-CyC-030-000-070-00002 99% Alumina Cylindrical Crucible,
OD 30 mm, H 70 mm (45 ml)
21 Al-CyC-035-000-065-00004 99% Alumina Cylindrical Crucible
OD 35 mm, H 65 mm (42 ml)
22 Al-CyC-036-000-135-00011 99.7% Alumina Cylindrical Crucible
OD 36 mm, H 135 mm
23 Al-CyC-046-000-030-00021 95% Alumina Cylindrical Crucible with 3 partition
OD 46mm Height 30mm
24 Al-CyC-049-000-145-00022 99.8% Alumina cylindrical crucible
OD 49mm Height 145mm with 4.3mm wall thickness
25 Al-CyC-056-000-063-00020 99.8% Alumina Cylindrical Crucible
OD 56 mm, H 63 mm (ID 50mm, IH 60mm)
26 Al-CyC-060-000-055-00017 99.7% Alumina Cylindrical crucible
OD 60 mm, H 55 mm (120 ml) – 3mm Thickness
27 Al-CyC-060-000-055-00015 99.7% Alumina Cylindrical crucible
OD 60 mm, H 55 mm (120 ml)
28 Al-CyC-060-000-060-00009 99.8% Alumina Cylindrical Crucible
OD 60 mm, H 60 mm (130 ml)
29 Al-CyC-080-000-080-00012 99.8% Alumina Cylindrical Crucible
OD 80 mm, H 80 mm (250 ml)
30 Al-CyC-095-000-095-00013 99.7% Alumina Cylindrical Crucible
OD 95 mm, H 95 mm (450 ml)
31 Al-CyC-100-000-085-00010 99.7% Alumina Cylindrical Crucible
OD 100 mm, H 085 mm (530 ml)
32 Al-CyC-150-000-150-0016 99.7% Alumina Cylindrical Crucible
OD 150 mm, H 150 mm
33 Al-ReC-027-007-006-00007 Alumina Rectangle crucible
027 mm x 007 mm x 006 mm
34 Al-ReC-030-010-010-00008 Alumina Rectangle crucible
030 mm x 010 mm x 010 mm
35 Al-ReC-050-020-020-00002 99% Alumina Rectangle crucible
50 mm x 20 mm x 20 mm
36 Al-ReC-050-020-010-00003 99.8% Alumina Rectangle crucible
50 mm x 20 mm x 10 mm
37 Al-ReC-075-018-014-00005 99.8% Alumina Rectangle crucible
75 mm x 18 mm x 14 mm
38 Al-ReC-075-019-010-00001 99% Alumina Rectangle crucible
75 mm x 19 mm x 10 mm
39 Al-ReC-090-065-030-00013-L 99% Alumina Rectangle crucible
90mm x 65mm x 30mm Thickness 3-4mm with step lid 90mm x 65mm x 4mm
40 Al-ReC-100-040-0020-00017-L 99.8% Alumina Rectangle crucible with lid
100 mm x 40 mm x 20 mm (50-1000ml)
41 Al-ReC-100-100-035-00006 99.8% Alumina Rectangle crucible
100 mm x 100 mm x 35 mm
42 Al-ReC-115-090-0030-00015 99.8% Alumina Rectangle crucible
115 mm x 90 mm x 30 mm (250ml)
43 Al-ReC-120-080-040-00014 99.8% Alumina Rectangle crucible
120 mm x 80 mm x 40 mm
44 Al-Rec-120-120-030-00010 Alumina Rectangle Crucible
120 mm x 120 mm x 30 mm
45 Al-ReC-150-150-030-00009 Alumina Rectangle crucible
150 mm x 150 mm x 030 mm
46 Al-ReC-150-150-0070-00016 99.8% Alumina Rectangle crucible
150 mm x 150 mm x 70 mm (1250ml)
47 Al-ReC-160-120-070-00011-H Alumina Rectangle crucible with holes
160 mm x 120 mm x 070 mm
48 Al-ReC-160-120-070-00012 Alumina Rectangle crucible
160 mm x 120 mm x 070 mm
49 Al-ReC-240-040-020-00004-L 99.7% Alumina Rectangle crucible+Lid
240 mm x 40 mm x 20 mm
50 Al-BoC-113-30-20-00005 99.8% Alumina boat crucibles 113mm top length 30mm top width 18-20mm Height
51 Al-BoC-025-050-010-00002 99% Alumina Boat Crucible
25 mm x 50 mm x 10 mm
52 Al-BoC-028-056-014-00001 99% Alumina Boat Crucible
28 mm x 56 mm x 14 mm
53 Al-BoC-100-020-020-00004 95% Alumina Boat Crucible with 3 partition
Length 100mm Width 20mm Height 20mm 
54 Al-BoC-100-040-020-00003 Alumina Boat Crucible
100 mm x 40 mm x 20 mm
55 Al-Dsk-005-0.5-0001 Alumina Disk
Dia 5mm x Th 0.5mm
56 Al-Plt-100-030-003-001 Alumina Plate
100mm x 30mm x 3mm
57 Al-Plt-100-100-008-002 Alumina Plate
100mm x 100mm x 8mm (Tolerance +/-0.01mm)
58 Customized Ceramic Crucibles: Alumina Boats, Alumina Trays, Alumina Cylindrical crucibles, Alumina Conical Crucibles, Alumina Rectangle Crucibles and other customize shapes Please contact us for your customized requirements on +1-732-808-1999 or email info@mkubeenterprise.com

 

Key Properties of Our Alumina Ceramic Crucibles

Our high-performance ceramic crucibles are designed to withstand the most demanding conditions:

  • Heat resistance up to 1700°C
  • Inert to acids, alkalis, and molten materials
  • Excellent thermal shock resistance
  • High mechanical strength and dimensional stability
  • Non-contaminating and corrosion-resistant
  • Ideal for high-purity analytical and thermal applications

These properties make our high-temperature crucibles a reliable choice for laboratories and industrial settings alike.

Applications of Alumina Ceramic Crucibles in Scientific and Industrial Fields

Our alumina crucibles are used across a variety of American industries, including:

  • Analytical labs for ashing, melting, and calcination
  • Thermal analysis such as TGA and DTA
  • Sample prep in mining, metallurgy, and materials science
  • Ceramic and metal powder processing
  • Furnace studies in research institutions
  • Environmental and geochemical testing

We also offer complementary products such as alumina tubes and rods, alumina plates, and alumina grinding media to support full laboratory setups.

Why Choose M-Kube for Alumina Crucibles in the USA?

M-Kube Enterprise is a trusted global supplier of alumina ceramics, delivering value, technical support, and performance to American labs and manufacturers:

  • Fast delivery across the USA
  • Stocked and custom ceramic solutions
  • Reliable supply chain and technical advice
  • Competitive pricing with volume discounts
  • Support for USA compliance and quality standards

Our expertise in technical ceramics ensures that every alumina crucible you receive meets stringent specifications.

Reliable USA Supplier of High-Purity Alumina Crucibles

At M-Kube Enterprise, we provide high-purity alumina ceramic crucibles engineered for precision, thermal stability, and chemical resistance. Whether you’re working in a lab, furnace system, or production facility, we offer both standard sizes and custom solutions to meet your exact needs.

  •  Trusted by USA research labs, universities, and manufacturers
  • Tight tolerances and high-performance ceramic quality
  • Fast delivery and responsive customer support

📞 Call +1-732-808-1999 or
📧 Email us at info@mkubeenterprise.com
to request a quote or get expert guidance on your alumina crucible requirements.

 

 

Product FAQ's

What is the use of an alumina crucible?

Alumina crucibles are prized for high-temperature work in metallurgy, ceramics, chemical processing, and materials testing. Their purity and strength let you melt, calcine, or sinter samples without contamination, making them a staple in both lab and industrial furnaces.

What is the maximum temperature for an alumina crucible?

Depending on purity and wall thickness, alumina crucibles can safely handle up to 1700 °C (3092 °F). High-grade ceramic versions resist thermal shock and chemical attack, ideal for demanding refractory applications.

How are alumina crucibles made?

Fine aluminum oxide powder (Al₂O₃) is shaped—cylindrical, boat-style, rectangular tray style or other—and then sintered at very high temperatures to produce a dense, durable ceramic vessel.

What purity levels are available?

Alumina Crucibles are available in a purity range from 85% to 99.8% alumina. Typically grades of ≥99.5% are recommended for analytical or semiconductor work to minimize contamination and boost chemical resistance.

How do I clean an alumina crucible?

Gently remove loose debris by tapping or brushing.
Heat in a furnace or kiln to burn off organic residue.
Use non-abrasive ultrasonic baths or soft brushes for cleaning.
Avoid strong acids or harsh abrasives that can erode the ceramic.
Routine, gentle maintenance preserves integrity and ensures consistent results.

What shapes do alumina crucibles come in?

Alumina crucibles are available in various shapes to suit different applications, including cylindrical, conical, rectangular, boat-shaped and customised designs. These shapes are chosen based on the specific heating and material handling needs of laboratories or industrial setups.
Trusted alumina ceramic tube suppliers in the USA, such as M-Kube Enterprise, also offer custom alumina crucible shapes and sizes to meet unique requirements. With their expertise in high-temperature ceramic solutions, M-Kube Enterprise provides high-purity alumina crucibles tailored for durability and precision in demanding environments.