Vario Ceramic Ovens


The only firing chamber in the world with 120mm diameter!

New for 2022, Zubler has updated the VARIO line of ovens with a touch display!  Still tough, the new displays allow for quicker information load and retrieval.

The VARIO line of ceramic ovens from Zubler have become widely respected for their quality, longevity and relevant capabilities. The features of the latest line of Zubler VARIO ceramic ovens provide the capabilities that many dental professionals have come to acknowledge as an incomparable value.

Besides the obvious notables, such as the high impact touch glass and USB port Zubler is the first oven producer to specifically design their chambers to optimize their function. While their VARIO PRESS 330eZR pressing ovens feature optimized heating elements and chamber designs specifically suited for pressable rings and ceramic firing capabilities, the VARIO 230 series optimizes the chamber for homogeneity and consistent temperature across the entire firing tray! No matter where work is placed on the firing tray the results are the same. Full arches can be placed anywhere, multiple units can be placed across the tray and processed without fear. Zubler calls the technology provided in their VARIO 230 oven line “Z-120 Technology”.

The VARIO 230ZR also offers TTC Mode. These program types allow linear cooling prior to the “Open time” portion of programs. Designed for sensitive ceramics like lithium disilicate and layered zirconia, TTC Mode has become the go-to program type for Zirconia full arch layering, staining and glazing firing.

The combination of Z-120 Technology and TTC Mode make the VARIO 230ZR the premier oven for the secure processing of sensitive zirconia bridges and full arches!


Technical Data:

Dimensions: (W x H x D) 320 mm x 540 mm x 460 mm
Weight: 23 kg
Voltage: 100 V/115 V/230 V/240V ~ 50/60Hz
Power: 1250 W

TTC linear cooling (TTC program types )

The software and the firing chamber design of the VARIO 230 series ovens allows linear cooling for sensitive processing of materials (like zirconia and lithium disilicate ceramics) when TTC mode is enabled, preventing chipping, micro-fractures and cracks!  Perfect for full-arch and all on x processing!

Z-120 Technology

(Homogeneous Temperature!)

The VARIO 230 series ceramic ovens feature a firing chamber with an inner diameter of 120mm and heating coil height of approx. 60mm. This unique size configuration allows for temperature homogeneity across the entire firing tray un-attained until now. This new configuration in conjunction with Zubler’s legendary temperature control systems, guarantee the utmost precision and highest quality firings no matter where on the tray you put your work!

Z-DRY (Perfect Pre-Dry)

A virtual sensor adjusts the lift position based on the temperature in the firing chamber and automatically ensures an ideal and constant pre-drying temperature. This feature saves time from the traditional methodology and is much more accurate.

PFC (Power Failure Control)

If the power goes out, PFC is activated! Once power is restored the oven operation is returned to the point of interruption.

USB (Software updates and Program transfers made easy)

After successful registration of your VARIO 230 furnace in the service area (here: you have access to a huge database of programs and also software updates. To download various programs for all dental ceramics on the market and the current software version for your furnace – simply log in and download. In addition to the extended warranty, you will receive all services in the download center and you will always be technically up-to-date!


If you need service or assistance with an error or other issue contact us here:

If you are in need of regular maintenance, would like new programs, or are checking for new software updates, make sure you have registered here:

More Images of Vario Ceramic Ovens

Documentation (PDFs)

Images from Vario 230ZR Clients