Dynamic testing machine PWS series

compressiontensilepressure

Application: The PWS electro-hydraulic servo dynamic and static universal testing machine is composed of a host, a constant pressure servo pump station, a dynamic controller, computers and software, pipeline systems, and more. It is suitable for dynamic performance, fatigue, and static mechanical performance tests of various materials, structural components, and assemblies. It can perform tensile, compressive, dynamic low cycle fatigue, programmed fatigue, fracture mechanics, as well as static constant deformation, constant load control, and various mechanical performance tests. With appropriate accessories, it can conduct fatigue crack propagation, simulate actual working conditions, and perform mechanical performance tests at high and low temperatures. The PWS series is ideal for dynamic testing in aerospace, aviation, transportation, metallurgy, scientific research institutes, and universities. Features: - The testing machine is a single axis axial loading machine, with a downward-installed actuator. - Equipped with hydraulic fixtures, it can perform tensile, compressive, fatigue, and other tests on standard material specimens. - Comes with a comprehensive safety alarm system, enabling unmanned operation during testing. - Software protection: Upper and lower limit protection can be set for load and displacement. If exceeded, the host stops to ensure safety. - Hardware protection: motor phase loss, motor overcurrent, oil temperature interlock, filter blockage, emergency stop. The system will alarm or shut down automatically if any protection is triggered. Specification: - Max static test force: ±50 / 100 / 200 / 300kN - Max dynamic test force: ±50 / 100 / 200 / 300kN - Test force measurement range: 2-100%FS - Load static measurement accuracy: ≤±0.5% indicating value - Load dynamic measurement accuracy: ≤±1.0% indicating value - Actuator displacement stroke: ±75mm (customizable) - Displacement measurement accuracy: ±0.5%FS - Test frequency range: 0.01-60Hz - Coaxiality: Better than 5% - Space between columns: 500mm (customizable) - Vertical test space: 1000mm (customizable) - Main test waveforms: Sine wave, triangular wave, square wave, sawtooth wave, half sine wave, half triangular wave, etc. This machine mainly includes: main unit, control unit, dynamic clamp, computer, printer, compression plate, and software. Control panel: Control and Computer Software System: - Supports the core control module of multi-channel closed-loop. - Signal conditioning unit with three sensors (force, displacement, deformation). - Experimental software is intuitive and highly readable. Software can be edited and analyzed. Servo controller: - Supports control modules with multiple closed-loop loops. - Signal conditioning unit with three sensors (force, displacement, deformation). - Secondary servo valve drive unit. - Control module: closed-loop control function, collects signals for fully digital closed-loop control, closed-loop control frequency 10kHz. - Servo valve driving unit: controls nozzle servo valve. - Waveform generator frequency range: 0.001-100Hz, frequency resolution: 0.001Hz. - Control waveform: sine, triangular, square, sawtooth, half sine, half triangular, random, and external input waveforms. - Control method: closed-loop control of force, displacement, and deformation, with smooth switching between modes. - Sensor calibration and reset functions. - Complete hydraulic station monitoring: monitors oil temperature, pressure, etc. Hydraulic dynamic clamp: The dynamic clamp uses high-pressure oil to push and rigidly clamp the sample. Suitable for round rods, flat materials, etc. After clamping, it can withstand full range load tension and compression tests. Connection method can be customized for easy replacement. Centering Ring Assembly: Configured for fine-tuning the coaxiality of the equipment. After coarse adjustment, equipped with a coaxial instrument and detection system for guidance and adjustment, meeting the requirement of coaxiality ≤ 5%. Servo hydraulic station: - Oil supplied by a centralized pump station. Hydraulic oil is led to the servo actuator via pipeline, then connected through an oil distributor and high-pressure hose. - Servo hydraulic station: accuracy 3μm, temperature range: room temperature ~ 55°C; power supply 3P ~ 380V, 50Hz; oil pump motor group with vibration reduction device to reduce vibration and noise. - Filtration system: three-stage filtration, highest accuracy 3μ, with oil filter blockage alarm. - Servo oil tank: fully enclosed, with temperature measurement, air filtration, oil level display, and alarm/shutdown protection for over-temperature, low liquid level, filter blockage, pressure, etc. - Touch screen oil source controller displays system parameters (oil temperature, pressure, liquid level, etc.). Air-cooled water chiller (optional): Used to cool the oil temperature of the hydraulic station. Compressor provides active cooling, controllable outlet water temperature, and good cooling effect. - Max static test force: ±50 / 100 / 200 / 300kN - Max dynamic test force: ±50 / 100 / 200 / 300kN - Test force measurement range: 2-100%FS - Load static measurement accuracy: ≤±0.5% indicating value - Load dynamic measurement accuracy: ≤±1.0% indicating value - Actuator displacement stroke: ±75mm (customizable) - Displacement measurement accuracy: ±0.5%FS - Test frequency range: 0.01-60Hz - Coaxiality: Better than 5% - Space between columns: 500mm (customizable) - Vertical test space: 1000mm (customizable) - Main test waveforms: Sine, triangular, square, sawtooth, half sine, half triangular, etc.