Alumina Crucibles

Schaefer Industrial Ceramics has been producing alumina crucibles for over 15 years. During this time, we’ve learned a lot! On paper, each crucible manufacturer looks the same. However, each manufacturer differs in their compositions and their processing techniques, so don’t assume that all crucibles are created equal.

At Schaefer Ceramics, we set out to do things differently. We recognized the differences between making large and small crucibles, deciding to focus only on smaller parts – 150 LB crucibles and less – and controlling our entire process as best as possible. We’ve designed or compositions and processes to assure that the ideal ceramic phases are achieved by selecting only the highest quality raw materials and by closely controlling firing time and temperature.

Our extensive final inspections assure that only first quality crucibles will be shipped to you. And we’re by no means done. We continue to improve our process year after year and make advancements in process controls and engineering. Our goal is to provide you with the best available crucibles. By this we mean crucibles that have long life and perform consistently time and time again.

Item No.	Top OD	Top ID	Outside Ht.	Inside Ht.	Bottom
ALC-25	4.38	3.63	9.63	9.13	0.50
ALC-30	4.36	3.76	11.00	10.50	0.50
ALC-40	5.87	4.87	10.88	10.38	0.50
ALC-50	6.38	5.50	11.00	10.38	0.63
ALC-65	6.50	5.50	13.25	12.50	0.75
ALC-100	8.75	7.75	12.75	12.13	0.63
ALC-150	9.00	7.75	14.50	13.75	0.75

*ALL MEASUREMENTS ARE IN INCHES