News

Frequently Asked Questions (FAQ): Solving Complex Tablet Hardness Testing with SOTAX ST50

09 December 2025

 

Q1: What physical parameters can the SOTAX ST50 measure?

The SOTAX ST50 tablet hardness tester measures five critical tablet parameters in a single test run: Hardness, Length/Diameter, Width, Thickness, and Weight. This integrated measurement approach improves efficiency while ensuring reliable and repeatable results.

Q2: What types of tablet shapes can the SOTAX ST50 handle?

The ST50 reliably handles virtually all tablet shapes, including round, oblong, oval, and complex geometries. Its patented SmartAlign™ and SmartLift™ technologies automatically orient tablets for accurate measurement. For unconventional or challenging shapes, a custom carousel is available.

Q3: What challenges arise when testing complex or unusual tablet shapes?

Complex tablet geometries such as extremely convex tablets, diamond or teardrop shapes, and non-symmetrical dosage forms often lack a consistent orientation. This can lead to alignment issues and inconsistent results on conventional testers.

Q4: Do complex tablet shapes require manual hardness testing?

With many traditional systems, challenging tablet shapes require manual testing. The ST50 eliminates this need by enabling automated positioning and measurement even for irregular geometries.

Q5: How does SmartAlign™ improve hardness testing accuracy?

The patented SmartAlign™ system, combined with SmartLift™ technology, ensures optimal tablet orientation during measurement. This minimizes variability, reduces cycle time, and delivers high-precision, repeatable results.

Q6: Is the SOTAX ST50 suitable for regulated pharmaceutical environments?

Yes. When connected to q-doc® PC software, the ST50 supports 21 CFR Part 11–compliant electronic data management, making it suitable for R&D, QC, and in-process control (IPC) laboratories.

Q7: How user-friendly is the SOTAX ST50 for daily laboratory operation?

The ST50 features EasyTouch™, an intuitive icon-based touchscreen interface available in more than 10 languages. Logical menus and intelligent operator guidance enable fast setup, minimal training, and reduced data entry errors. A built-in user administration system restricts critical settings to authorized users.

Q8: What reporting options are available with the SOTAX ST50?

The ST50 offers configurable reporting with two customizable protocol templates. Reports can include detailed graphics or simple summaries and are generated automatically after each test run. Calibration and qualification reports are also supported.

Q9: How is qualification and calibration handled?

The ST50 supports advanced qualification using the DQD™ Dynamic Qualification Device, allowing automated verification across the full hardness range. Optional SmartCal™ static qualification enables multi-point verification with a single certified weight.

Q10: Where is the SOTAX ST50 commonly used?

The ST50 is widely used in R&D, Quality Control, and In-Process Control (IPC) laboratories worldwide, valued for its speed, precision, compliance readiness, and flexibility.

Q11: Where can I find more technical information?

Watch our product video to see the alignment technology in action or download the application note for in-depth technical details.

Interested in solving complex tablet hardness testing challenges? Email marketing@gaiascience.com.my, or call 03-8065 3889.