1. Purpose:

   The PWS-20 electro-hydraulic servo escalator step and moving walkway pedal dynamic and static test system adopts electro-hydraulic servo technology, which is suitable for dynamic and static loading test, torsion test, fatigue life test, etc. of escalator and moving walkway steps, step kicks and pedals .

2. According to standards:
1) JB/T9397-2002 "Technical Conditions of Tension and Compression Fatigue Testing Machine"

2) GB/T16899-2011 "Safety Code for the Manufacturing and Installation of
Escalators and Moving Walks" 3) TSGT7024-2004 "Detailed Rules for the Type Test of Escalators and Moving Walks"

4) EN115: 2008 "Safety of Escalators and Moving Walks Part 1: Manufacturing and Installation"

5) TSGT7024-2004 "Detailed Rules for the Type Test of Escalators and Moving Walks"
3. Main technical parameters

1) Maximum static test force: ±20kN, measurement range: 2%-100%FS; display accuracy: ±1%.

2) Maximum dynamic test force: ±20kN, measurement range: 2%-100%FS; display accuracy: ±1%, dynamic force amplitude fluctuation: ±1%.

3) Maximum amplitude: ±75mm, measurement range: 2%-100%FS; display accuracy: ±1%.

4) Test stroke: 150mm

5) Test space: ≥500mm

6) Frequency range: 0.1-20Hz

7) Main waveforms: sine wave, square wave, triangle wave, oblique wave, trapezoidal wave, etc.

8) Control mode: full digital PID closed loop control of force and displacement

9) Controller: KDWinTster all-digital controller

10) Oil source specification: 36L/min, 21MPa, 15kW