Crucibles
Melting crucibles are available in different sizes and materials. The capacity is given in kg, based on the density of copper. We have also given the volume in liters.
We offer two different types of crucibles:
- Graphite crucibles, up to 1450°C
- Ceramic crucibles, up to 1700°C
Our crucibles have an even heat distribution and a short heating phase.
Important for crucibles for longer service life: preheat well and follow the instructions
in stock
in stock
Important information
A crucible is exposed to high thermal loads.
To increase the service life and ensure safe handling, there are important instructions for handling crucibles.
First use
Pre-bake
Before first use or after long-term storage, the crucibles should be heated to approx. 200-300°C for a period of approx. 2 hours.
This is especially true for graphite crucibles, as they can absorb moisture.
Heating up
slowly
The crucibles should be heated slowly to operating temperature.
Particularly in gas furnaces and with one-sided flames, cracks or chipping can occur if the crucible is heated too quickly or not evenly.
Fill
fill up
The crucible should always be filled up to 2/3.
If the crucible is only half full, the unfilled part of the crucible can oxidize and cracks can form as a result.
Filling
clamping
Do not stuff or clamp material into the crucible. The material in the crucible needs space so that it does not explode when it expands. The coefficient of expansion of the metal is usually greater than that of the crucible.
Material
Preheat
Bars and larger pieces should be warmed up as much as possible and carefully placed in the crucible. Do not let the pieces fall into the crucible, but gently place them into the crucible using tongs.
Handling
gentle
The material itself is very brittle and so shocks and impacts can damage the crucible. Even if the crucible remains intact after falling from the shelf, it should be replaced as hairline cracks can only appear later.
Additives
immediately
Melting preparations and additives such as aluminum cleaning granulate should be added immediately before pouring in order to keep the exposure time to the crucible as short as possible. Do not overdose on these under any circumstances.
Cleaning
emptying
The crucible must be completely emptied after the casting process. Do not allow any metal sump (remains of the melt) to cool in the crucible. The crucible is ideally emptied while it is hot and the adhering dross is then removed. This protects the crucible and increases its service life.
Accessories
suitable
Tongs, carrying scissors, crucible holders, forks, etc. should match the crucible shape. It is important that they grip the crucible over a large area and not just at specific points. This way, no pressure points are created and the crucible is not clamped too tightly.
Questions - Answers - FAQ
Many questions about our crucibles that we try to answer without meaningless AI texts.
Do you still have questions? Then please ask us directly here:
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What is important in a crucible?
Quality is clearly the most important thing. Our crucibles are produced in Germany and are characterized by a long service life and good thermal conductivity.
What material are crucibles made of?
We use two different materials for our crucibles.
1. Graphite
2. Ceramic
Each material has its advantages and disadvantages.
When do I need a ceramic crucible?
Ceramic crucibles are made for high-temperature applications up to 1700°C .
But be careful, as these crucibles are made of high-tech materials, they are very sensitive and can crack if heated up too quickly or if the heat is applied unevenly.
This is why these crucibles are made for professionals.
The crucibles are more expensive than graphite
What is the graphite crucible for?
Use up to 1450°C.
This is the classic.
Graphite crucibles are relatively easy to use and, compared to ceramic crucibles, forgive a few handling errors.
They are relatively inexpensive and have proven themselves for many years.
The graphite crucibles are suitable for aluminum, brass, bronze and many other materials.
Is the ceramic crucible better than graphite?
This cannot be said in general.
Ceramic crucibles can withstand higher temperatures, but are much more sensitive to handling.
Graphite crucibles are very common and forgive the odd mistake.
In general, we recommend graphite if the temperature of the melt does not need to exceed 1450°C.
What should I look out for when buying?
The mold should be sturdily built and the parts must fit well together.
Where do the crucibles come from?
Our crucibles come from Germany and have been produced by established manufacturers for many years.
Accessories for crucibles?
Here it is important to choose the right accessories.
We have tailored our range of accessories to our crucibles and you will get the right crucible for the pliers you have bought, even in many years to come.
Here it is important that the crucible and accessories still fit in many years to come, we make sure of that.
Where can I buy crucibles?
You can get the right crucibles in our shop.
We have everything for both the professional and the hobby caster, and from graphite to ceramic, everyone will find what they are looking for.