Microcomputer servo dynamic fatigue testing machine for asphalt mixture KPL-04A

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Microcomputer servo dynamic fatigue testing machine for asphalt mixture KPL-04A

Microcomputer servo dynamic fatigue testing machine for asphalt mixture KPL-04A.jpg

1. Introduction

l The microcomputer servo asphalt mixtures material dynamic fatigue testing machine is mainly composed of a main loading frame, a constant pressure servo pump, a fully digital single channel servo controller, an environmental box, a hydraulic cooling unit, a computer, and measurement and control software. The main loading frame is equipped with a 30KN servo linear actuator, constant pressure servo pump flow rate of constant pressure servo pump is 30L/min and the system pressure of 21Mpa.

l Mainly used for testing the dynamic and static mechanical properties of road materials, including tensile, compressive, low cycle, and high cycle fatigue tests of materials.

l Other testing attachments can be selected for crack propagation, fracture mechanics, and other mechanical performance tests of materials. High and low temperature boxes can be selected for high and low temperature mechanical tests.

2.specifications

No.	Item	Spec.
1	Static force capacity	±30KN,Calibrate according to attenuation multiples of 1 and 10 in different levels, with an accuracy of ± 1% for each level starting from 20%
2	Dynamic force capacity	±30KN, accuracy is less than ±2%FS of each force range
3	Actuator amplitude	±75mm, accuracy is ±0.5%FS from 20%
4	Frequency range	0.1-25Hz
5	Test waveform	Sine wave, partial sine wave, triangular wave, square wave, sawtooth wave
6	Constant pressure servo pump station	Flow rate 30L/min, system pressure is 21Mpa, motor power is 7.5kW
7	Working table size	840x400x1850mm,inner width: 580mm max. vertical height:800mm
8	Maximum closed-loop control refresh rate	6kHz
9	A/D,D/A resolution	16 bit
10	Signal frequency range	0.001-25Hz
11	Control accuracy	Static : 0.3%FS dynamic: 0.5%FS