Automatic Pressure Testing Machine With High Precision Digital Servo Valve
Product introduction
The measurement and control system adopts high precision digital servo valve, with force closed-loop control function, can achieve equal load rate loading or equal stress rate loading, high control accuracy, good reliability, the use of micro-computer to achieve electronic measurement, automatic compressive strength test, automatic calculation and printing reports, widely used in construction industry and testing units.
Hydraulic System
Hydraulic oil in the tank through the motor driven high-pressure pump into the circuit, through the one-way valve, high-pressure oil filter, pressure differential valve group, servo valve, into the cylinder. The computer sends out the control signal to the servo valve, controls the opening and direction of the servo valve, thus controlling the flow of the oil cylinder and realizing the control of the Isokinetic test force.
Force measuring system
The use of high-precision amplifiers and A/D converter, the whole process, real-time display load, peak, load speed and strength;l
PID closed-loop control strategy to achieve constant-speed loading, real-time display load curvel
Automatic interval timing and continuous test;
Inquiry, printing test results flexible and convenient;
Safety Protection Device
When the test force exceeds the maximum test force of 3%, overload protection, pump motor shutdown.
Main performance Specifications
| Max Test Force (KN) | 2000 |
| Measuring range of Test force | 5%-100% |
| Relative error of Test force indication | ±1% of the indicated value |
| Spacing of Upper and lower platen (mm) | 330 |
| Piston Stroke (mm) | 100 |
| Column spacing (mm) | 370 |
| Pressure plate size (mm) | 370*370 |
| Main engine dimension (mm) | 1100*900*1800 |
| Oil source outer dimension (mm) | 1100*750*1000 |
| Motor Power (KW) | 2 |
| Total weight (kg) | 1600 |
Factory standard Configuration List
| Name | Number | Notes |
| Test machine Host | one units | --- |
| Oil Source Console | one units | including motor, oilpump, servo valve |
| Computer | one units | Lenovo Brand Commercial Machine |
| Measurement and control system | one units | |
| Pressure Transduce | one | China Aerospace Electric Test |
| Electrical control System | one sets | |
| Upper and lower pressure plate | one sets | |
| Upper and lower pressure plate | one sets | |
| Printer one units Inkjet Type | | |
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