Vario S430 Sintering Oven

Zubler’s new VARIO S430 integrates high-quality components and the renowned engineering expertise of Zubler, featuring an enhanced touch screen display with a logical design for improved responsiveness. The purity of the Molybdenum (MoSi2) elements in the chamber ensures clean firings and longer periods between maintenance cycles. This results in more efficient operation and longer element lifespan.

While many sintering ovens opt for the Type S thermocouple, Zubler chose to utilize the Type B for its temperature capabilities. Type B has an increased maximum temperature capability of up to 1800°C in an oven with a maximum temperature setting of 1650°C. This results in an obvious lifespan increase, but also less boil off the metal resulting in a more consistent temperature accuracy over time.

Material selection and sintering dish design play a pivotal role in the success of the sintering process. Dish properties impact the appearance of sintered zirconia, and thermal or mechanical shock can affect the dish’s service life. The trays, designed for stacking with a sturdy build, ensure prolonged service life and optimize sintering results for high-strength and highly translucent zirconia.

Incorporated first into Zubler’s VARIO 200ZR ceramic oven, the TTC feature has proven a reliable method for cooling as the last stage sintering programs in the VARIO S430. The TTC feature controls temperature descent at a user defined degree-per-minute until the opening of the chamber ensuring a safer sintering process.


Advantages of the VARIO S430:

SPEED 99°C/Min Heat Rate Capability
(TTC) – Time Temperature Cooling (Linear cooling program control)
(PFC) – Power Failure Control allows the oven to resume a program from the point of interruption
4 High Purity Molybdenum Disilicide (MoSi2) Heating Element with speed capabilities
2 Stackable sintering dishes
Pre-Programmed Regeneration Maintenance Cycle
USB Port for Program transfers and software updates

Technical Data:

Dimensions: (W x H x D) 330 mm x 830 mm x 570 mm
Weight: 55 kg
Voltage: 220 V – 240 V ~ 50/60Hz
Power: 1900 W
Firing chamber volume:  130 x 290 mm for two sinter bowls
Control accuracy at 1500 °C:  +/- 3 °C
Closing mechanism: Electrical lift system

More Images of the S430

Documentation (PDFs)