STW-300E is equipped with high-temperature accessories and a servo-mechanical operating mechanism driven by an AC servo motor and driver. The torque measurement system is class 0.5 (max. error 0.5% of the reading within the range of 2% to 100% of capacity) in compliance with EN 10002 and ISO 7500 standards.

The equipment is designed to perform high-temperature torsion tests, featuring a detachable single-zone furnace (up to 1000˚C). the furnace is mounted on supporting rods and includes interfaces with 2 degrees of freedom it is a circular furnace with internal dimensions of 150 mm × 50 mm. For precise temperature measurement, the furnace is equipped with flexible K-type thermocouples (grade A, accuracy ±2˚C, resolution 0.1˚C), a temperature control system, and a PID digital display for regulation and monitoring.

Torsion testing machines are used to determine torsion strength of wires. The test can be performed at max. speed of 30 RPM (10800 degrees/min or 3.14 rad/s) or min. speed of 0.01 RPM (3.6 degrees/min or 0.001 rad/s). The machine operates in two modes:

• Cyclic torsion mode: e.g., 10 revolutions clockwise and 10 revolutions counterclockwise performed automatically
• Unidirectional torsion mode: torsion applied in a single direction.

The machine is a servo-electromechanical system equipped with a gearbox, a high-precision torque meter, and a protractor with an accuracy of 0.001˚. It is fully computerized and controlled via RS-232 through DSP-based hardware technology, with no restriction in PC type. The user-friendly software provides control over the system, including plotting torque-RPM graphs and generating comprehensive reports. It records, restores, recalls, and prints test results; defines the test speed; analyzes graphs; and determines the max. torque points, failure torque, and yield torque point on the curve. For ease of operation, a separate control keyboard with JOG keys is provided to control the grips rotation and specimen adjustment.

A protective guard can be mounted for operator safety. The system is also equipped with laser sensors that function as optical safety screen in front of the machine table. These sensors automatically halt the operation in the event of:

• Any foreign object approaching the working area
• The operator’s hands or arms entering the protected zone
• The special wrench being accidentally left on the three-jaw chuck

In addition to the above items, the machine also includes accessories for torsional torque calibration submitted to the buyer for performance verification.

For more information and technical specifications, please contact the Sales Department.