Product Description: 1. Horizontal mainframe structure with a support device at the front of the servo torsion actuator, featuring anti-orientation force resistance and effective elimination of axial stress. 2. Tailstock end equipped with a linear electric adjustment device (motor-reducer-gear-rack structure) to meet the testing space requirements for various test pieces. Equipped with linear guide rail pairs to effectively compensate for the torsional axial deformation of the test piece. 3. Dual-blade structure electro-hydraulic servo oscillating actuator for driving function. The actuator boasts low damping, high responsiveness, and long service life, suitable for long-term dynamic torsional fatigue tests. 4. External electro-hydraulic servo valve (2 sets of flow rate L/min servo valves in parallel use), torque sensor, and angle sensor, with a compact structure and featuring torque and angle closed-loop control circuits. Suitable for dynamic torsional fatigue testing of various materials, automotive drive shafts, half shafts, and other shaft-type components. 1. Torque: ±0000Nm, indication accuracy +1%, accuracy range 2-10% FS.

Test Frequency Range: 0.1-20 Hz; 2

Primary Test Waveforms: Sine Wave, Triangle Wave, Square Wave, Slope Wave, and Customized Composite Slope Wave

Corner: ±50°, Angle Resolution: 1"

Servo Pump Station: Total Flow L/min, Pressure 21 Mpa, Power, Filtration Precision 3u

Torque angle +4° at 3 Hz; D

Control System: SD-TEST Full Digital Hydraulic Servo Controller

Full digital electro-hydraulic servo controller based on PCI bus

Control Method: Full digital PIDF closed-loop control for torque and angle, with smooth and undisturbed switching of control modes. Data Acquisition Frequency: 2kHz

Test Signal Measurement Resolution: ≥1/10,000,000, Indication Accuracy 0.005FS.

Signal Generator Accuracy: 0.01%; e.

Frequency Range: 0.1-20 Hz

Compatibility Sensor Types: Strain gauge torque sensor, sine quadrature pulse photoelectric angle sensor, C, 8; Specimen Length: 500-2500mm

9. Display: The computer screen displays the measured values of torque and angle, automatically plots the test curve, and controls the test process automatically. The system features protection functions for overload, overpressure, overtemperature, and specimen breakage.