Electro-hydraulic servo dynamic testing system

 

Description

   PWS series electro-hydraulic servo dynamic testing system consists of frame, pump station, servo control system, computer and software, accessories and pipeline system. It can be applied to dynamic fatigue and static performance test of various materials, structural parts and components.

 

Application

1.Dynamic high cycle fatigue test and low cycle fatigue test

2. Conventional mechanical property test and fracture force test under the control of static constant rate, constant strain and constant stress.

3. Part vibration and impact test

4. Fatigue life, crack growth, fracture toughness performance test for material or components.

5. Safety evaluation and working condition simulation of actual specimens.

6. It is applicable to quality control and experimental research in the fields of aerospace, aviation, vehicles, building components, rail transit, atomic energy and ship.

Features

• Frame structure: Dual columns (Below 300KN) and four columns (Above 300KN)
• Crosshead: hydraulic tightening, hydraulic lifting and descending. Flexible adjustment of test space
• Actuator is designed to integrated with frame. It can be placed up and down.
• Wide range: 5kN- 5000 KN．
• The actuator has a built-in LVDT displacement sensor and external Load sensor electro-hydraulic servo valve.
• Actuator amplitude limit position is equipped with hydraulic buffer, avoiding the damage out of control.
• Various grips and accessories supply:

   Hydraulic pressure clamping chuck, threaded chuck, Three-Point Bending accessories, Four-Point Bending accessories etc. We can customize grips and accessories according to requirement.

• Various specification Constant pressure servo pump station for selection. Range: 15-1500L/min.
• Control system: Digital Control Electro-Hydraulic Servo Control system

Optional: IST (Instron) Labtronic 8800 digital control system.

         DOLI company EDC580 control system.

• Software: Provide dynamic and static software for selection.

            Labtronic software is optional.

• Environment test equipment is optional: such as high temperature furnace and low temperature chamber.
• External oil cooling circulation device is optional

 

 

 

 

 

 

Specification

 

Model

PWS-5

PWS-15

PWS-30

PWS-50

PWS-100

PWS-300

PWS-500

PWS-750

PWS-1000

PWS-3000

PWS-5000

Max Static Force (KN)

±5

±15

±30

±50

±100

±300

±500

±750

±1000

±3000

±5000

Max Dynamic Force (KN)

±5

±10

±20

±35

±70

±200

±350

±500

±700

±2000

±3500

Force accuracy

± 1.0% or ±0.5%（test range：±2%-100%FS）

Amplitude (mm)

±25

±50

±75

±75

±75

±100

±125

±125

±125

±150

±200

Displacement Accuracy

±0.5%FS

Frequency range (Hz)

0.01-20 or 0.01-75

0.01-10 or 0.01-35

Waveforms

Sinusoidal, triangular, square, oblique, etc. Optional: file wave, random wave, PDS power spectrum density wave, road spectrum, etc.

Column space (mm)

500

500

500

600

600

715

760×580

760×580

960×6200

Customized

Customized

Column diameter

40

64

64

70

70

80

80

80

120

Customized

Customized

Test space (mm)

500

700

700

750

750

900

1050

1050

1050

Customized

Customized

Frame stiffness

3.0*108 N/m

Optional pump station

5L/min-140 L/min 21Mpa/28Mpa

37L/min-280 L/min 21Mpa/28Mpa

110L/min-1525 L/min 21Mpa/28Mpa

Weight

400

480

500

900

920

1900

3500

3500

4000