FOR IMMEDIATE RELEASE
July 2025
Fredericton, NB – Rigaku Holdings Corporation (hereinafter referred to as “Rigaku”) has launched worldwide sales of STAvesta, a thermal analyzer that simultaneously measures a sample’s weight and change in calorific value during heating. C-Therm Technologies has been the proud distributor of Rigaku’s line of thermal analysis instruments in North America since 2022 and is excited to support the distribution of the STAvesta.

The STAvesta responds to needs in a wide array of fields where thermal analysis is required. It is expected to find use in a wide variety of material-analysis applications for the development of advanced features and complex materials.
New Auto-Adjustment Feature: FlatBlank
In conventional thermal analysis, baseline adjustment must be performed by hand before measurement can begin. This process can be time-consuming and frustrating, particularly for novice users. Rigaku’s newly developed FlatBlank, a baseline auto-adjustment feature, automates this process, dramatically reducing waiting time associated with the process. Measurement can begin as soon as preparations are ready, enabling smooth setup after sample insertion and improving work efficiency overall. The benefits are particularly pronounced in workplaces conducting R&D handling multiple samples.
Key Features of STAvesta
- Broad support for a wide range of users
STAvesta easily switches among seven types of electric furnace1 according to purpose and measurement conditions. A real-time imaging feature enables samples to be observed during measurement, contributing to improved speed and accuracy in R&D.
1Six types of electric furnace in some countries. - Vestaeye, a new, world-first feature, provides self-diagnosis for constant monitoring of device status.
Before and during measurement, the device monitors itself constantly for signs of abnormality. Users can confirm at a glance whether the device is functioning correctly before starting measurement, so waste of precious samples is eliminated. - Next-generation thermal analysis features for outstanding temperature-control performance
In thermal analysis, when a temperature is set for a sample, the sample may fail to heat up to that setting or may heat up above that setting, precluding accurate measurement. Rigaku’s new temperature control feature dramatically reduces this problem of incorrect temperature. Samples are heated to and held at the required temperature in strict accordance with the preset temperature program. As a result, researchers can easily obtain the intended reactions and obtain stable measurement. - Rapid processing of up to 52 samples in a compact device
STAvesta’s automatic sample changer dramatically increases the number of samples that can be handled from 28 in the previous model to 52. With 2.3 times the transport speed of the previous model and support for up to 1,000 continuous measurements, STAvesta achieves superb measurement efficiency. The tray section supports gas flow, making it ideal for measurement of powders that are prone to moisture absorption. STAvesta is designed so that attachment of the automatic sample changer does not increase its footprint, assuring industry-leading space-saving performance.
To learn more about the STAvesta, you can view its specifications here.
About C-Therm
C-Therm Technologies Ltd., headquartered in Fredericton, New Brunswick, Canada, provides thermal conductivity instrumentation for R&D, production, and quality control environments. C-Therm’s Trident Thermal Conductivity Instrument delivers fast, accurate measurement of thermal conductivity. To find out more information about C-Therm Technologies Ltd.’s products and applications, visit their website at www.ctherm.com.
About Rigaku
Since launching the Thermoflex line in 1957 and developing the world’s first thermogravimetry based on the differential thermobalance principle in 1981, Rigaku has continually developed and marketed thermal analyzers for more than 60 years. Rigaku is constantly developing cutting edge thermal analysis instruments, providing constantly improving solutions to match the needs of their customers. To see their full line of thermal analysis equipment, visit their website at https://rigaku.com/products/thermal-analysis.
For more information, please contact:
Adam Harris
CEO
C-Therm Technologies Ltd.
Phone: +1 (506) 471-7201
Email: aharris@ctherm.com
What do our Customers have to say?
“The C-Therm Trident offers thermal characterization of varied options in terms of material types, shapes & environmental flexibility with quick & user-friendly operation which is unparalleled. These kinds of instruments are very helpful in our research & Industrial environments with practical applications. The know-how & technical support ability from their teams are also quick & reliable.”
Naitik Panchal,
Manager, R&D – Material Science