STM-50 is equipped for high-temperature compression testing with a servo-electric mechanism using ball screws, driven by an AC servo motor and driver. Force is measured by a 5-ton load cell, accuracy class 0.5 (max. error 0.5% of the reading from 2% to 100% of the load cell capacity) in compliance with ISO 7500 and EN 10002.

The system is equipped with a circular furnace featuring a single heating zone designed to provide uniform vertical and angular temperature distribution. It operates at temperatures up to 1100 ˚C, with precise temperature control via a digital controller (resolution 0.1˚C). A thermocouple is used to monitor both the mean specimen temperature and the furnace bulk temperature, with real-time feedback for accurate regulation. The furnace can move vertically relative to the specimen for easy access and adjustment of both the specimen and thermocouples. it can also be easily detached from the machine using supporting arms and guide rods.

The machine features a displacement sensor without stroke limitation, providing 0.05 µm resolution in no load mode and a displacement measurement accuracy better than 0.05 mm at full stroke. The test speed is adjustable from 0.001 to 500 mm/min. The system supports various low-capacity load cells to improve measurement accuracy, and automatically identifies the load cell and applies the corresponding settings.

Self-aligning joints are designed for high-temperature compression testing to evaluate barreling deformation of the specimen in accordance with the relevant standards properly. The material of in-furnace interfaces and compressive platens varies based on the operating temperature; superalloys are used for testing at 980˚C

The remaining hardware and software capabilities of the machine are identical to those of the STM series (servo electric configuration)