Morgan Molten Metal Systems is best known for our market leading position in the supply of crucibles. The company also manufactures and services furnaces for melting and holding metals and alloys - a perfect fit with our ......Morgan Molten Metal Systems is best known for our market leading position in the supply of crucibles. The company also manufactures and services furnaces for melting and holding metals and alloys - a perfect fit with our crucibles. To complement these products we also offer a large range of foundry products such as thermocouple sheaths, coatings, tubes and more. As well as foundry equipment for crucible lifting, ingot loading and temperature measurement.