Round zirconia sintering crucible - French manufacture
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Référence: NAC080
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Made in France
Brand: CERAREFRAC
SKU: NAC100
Zirconia sintering
Diameter 100/90/80 mm
High temperature
Round zirconia sintering crucible 80, 90 and 100 mm – sintering support for dental frameworks and restorations
This CERAREFRAC round zirconia sintering crucible is designed to support sintering cycles in the dental laboratory. It allows zirconia frameworks, crowns, bridges and milled restorations to be positioned during high-temperature thermal cycles.
Its openwork design with vertical slots helps manage thermal expansion, limit internal stresses and secure the restorations during temperature ramp-up, the sintering holding phase and cooling.
Brand
CERAREFRAC
SKU
NAC100
Diameter
100 - 90 - 80 mm
Delivery
1 crucible
A zirconia sintering crucible for dental laboratories
The zirconia sintering crucible is an essential accessory in dental CAD/CAM workflows. It receives milled restorations before their thermal densification in a compatible sintering furnace.
During the firing cycle, zirconia elements must be held in a stable position in order to preserve the accuracy of the work performed upstream. This crucible provides a support adapted to zirconia frameworks, crowns and restorations used in dental prosthetics.
It is particularly suitable for laboratories looking for a reliable, stable and durable support for repeated sintering cycles.
Compatible with furnaces accepting 100, 90 or 80 mm diameters
This round crucible can be used with sintering furnaces capable of accepting its diameter, external height and overall dimensions.
Before use, it is recommended to check the usable dimensions of the furnace chamber, the available height and compatibility with the zirconia sintering beads used in the laboratory.
| Crucible diameter | 100 - 90 - 80 mm |
|---|---|
| External height | 25 mm |
| Internal height | 20 mm |
| Thickness | 5 mm |
| Compatibility | Sintering furnaces accepting the crucible dimensions |
| Application | Sintering of zirconia frameworks and restorations |
Applications in the dental prosthetics laboratory
Zirconia frameworks
Support adapted to zirconia frameworks requiring a stable high-temperature sintering cycle.
Crowns and bridges
Suitable for single-unit and multi-unit restorations compatible with the available volume in the crucible.
Dental CAD/CAM workflow
Suitable for zirconia restorations milled in dental laboratory digital CAD/CAM workflows.
Sintering with zirconia beads
The crucible can be used with zirconia sintering beads to support restorations during the cycle.
Technical benefits of the CERAREFRAC sintering crucible
- Stable support for zirconia framework sintering.
- Round formats of 100, 90 or 80 mm adapted to compatible furnaces.
- Vertical slots designed to accommodate thermal expansion.
- Reduced internal stresses during high-temperature cycles.
- Good stability during temperature ramp-up and cooling.
- Compatible with zirconia sintering beads according to the laboratory protocol.
- Made in France in a specialised facility.
- Practical packaging: 1 crucible.
Professional use
This crucible is used with zirconia sintering beads to hold restorations during firing. It is suitable for zirconia dental prosthetic work requiring good support stability.
Restorations must be positioned without compression, while following the zirconia manufacturer’s recommendations and the settings of the furnace used.
- Check that the crucible enters the furnace chamber freely.
- Avoid any lateral constraint inside the furnace.
- Use an appropriate quantity of sintering beads.
- Follow the firing programs for the zirconia material.
Thermal cycle management
The openwork design of the crucible helps accommodate thermal variations during sintering cycles. This geometry helps limit mechanical stress linked to heating and cooling phases.
Careful handling, regular inspection of the crucible and compliance with the recommended preheating procedure help preserve its service life in the laboratory.
Recommended instructions for use
Before first use, it is recommended to preheat the crucible at 750 °C for 1 hour in a suitable furnace. This step stabilises the material and limits the risk of cracking during subsequent cycles.
Then place the sintering beads in the crucible and position the zirconia elements without compressing them. The restorations must remain properly supported while retaining enough freedom to accommodate the thermal stresses of the cycle.
Always follow the firing recommendations of the zirconia manufacturer used, as well as the operating instructions of the sintering furnace.
Inspection before use
Before each cycle, it is recommended to visually inspect the crucible in order to check its integrity and the cleanliness of the loading area.
- Check for visible cracks.
- Check for significant deformation.
- Avoid residue build-up in the crucible.
- Replace the crucible in case of advanced deterioration.
Laboratory best practices
A sintering crucible must be handled with care, especially after firing cycles. Rapid temperature variations, mechanical impacts and contamination can reduce its service life.
- Avoid significant thermal shocks.
- Handle with suitable accessories.
- Allow cooling according to the furnace protocol.
- Keep a replacement crucible at the sintering station.
Technical specifications
| Product | Round zirconia sintering crucible |
|---|---|
| Brand | CERAREFRAC |
| Reference / SKU | NAC100 |
| Type | Round sintering crucible for zirconia |
| Diameter | 100 - 90 - 80 mm |
| External height | 25 mm |
| Internal height | 20 mm |
| Thickness | 5 mm |
| Application | Sintering of zirconia frameworks, crowns, bridges and restorations |
| Recommended preheating | 750 °C for 1 hour before first use |
| Packaging | 1 crucible |
Why use a crucible adapted to zirconia sintering?
Zirconia restorations require a stable, clean sintering environment compatible with cycle temperatures. A suitable crucible allows the pieces to be positioned correctly and helps limit the risk of inappropriate contact during firing.
The choice of crucible must always take into account the diameter, the available furnace height, the type of restoration, the sintering protocol and the sintering beads used.
Complementary products
Delivery
Delivery: 1 round zirconia sintering crucible 100 - 90 - 80 mm.
Product intended to support zirconia frameworks, crowns, bridges and restorations during sintering cycles in the dental laboratory.
FAQ – CERAREFRAC round zirconia sintering crucible
How should the crucible be prepared before first use?
It is recommended to preheat the crucible at 750 °C for 1 hour before first use.
This step stabilises the material and reduces the risk of cracking during subsequent sintering cycles.
Is the crucible compatible with all sintering furnaces?
The crucible is compatible with furnaces accepting its 100 mm, 90 mm or 80 mm diameter, its 25 mm external height and its overall dimensions.
It is recommended to check the internal furnace dimensions before use in order to avoid any mechanical or thermal constraint.
What are the vertical slots on the crucible used for?
The vertical slots help accommodate the material’s thermal expansion during firing cycles.
They contribute to reducing internal stress and limiting risks related to thermal constraints during sintering.
Should sintering beads be used with this crucible?
Yes, the use of zirconia sintering beads is recommended to support restorations during firing.
They provide better stability for frameworks, crowns and bridges while accommodating the thermal constraints of the cycle.
When should a zirconia sintering crucible be replaced?
A crucible should be replaced when it shows major cracks, deformation, persistent contamination or deterioration likely to compromise load stability.
A reliable French-made crucible for zirconia restoration sintering
The CERAREFRAC round zirconia sintering crucible is designed for dental laboratories producing milled zirconia restorations and looking for a stable support for their sintering cycles.
With its 100, 90 or 80 mm diameter, 25 mm external height, vertical slots and French manufacture, it provides a solution adapted to zirconia dental prosthetic work in compatible furnaces.
The recommended preheating at 750 °C for 1 hour before first use helps stabilise the material and improve the crucible’s service life.
Round zirconia sintering crucible - French manufacture