Manhole cover pressure testing machine

1Manhole cover pressure testing machineOverview
1. Adopting a microelectromechanical hydraulic servo controller, automatic loading, driving hydraulic cylinder, and load sensor to detect the test force of the specimen. Stable and reliable performance, accurate data detection.
2. This testing machine is suitable for testing specimens with a carrying capacity greater than 20kN and not greater than 1000kN.
3. Comply with the national GT/T2611 "General Technical Conditions for Testing Machines" and the national metrological verification regulation JIG139 "Tensile, Pressure, and Strength Testing Machines" standards.
4. The testing machine is suitable for compression and bending strength testing of manhole covers, and can meet relevant professional standards such as CJ/T3012-1993 "Cast Iron Inspection Manhole Cover", CJ/T121-2000 "Recycled Resin Composite Material Inspection Manhole Cover", and JC889-2001 "Steel Fiber Concrete Inspection Manhole Cover".
IIManhole cover pressure testing machinePerformance and Characteristics
1. The host adopts a high stiffness structure to ensure safety during the testing process.
2. Lower the loading cylinder for easy access to the manhole cover specimen.
3. The steel pad and the piston push out end are connected by a ball joint to ensure contact between the manhole cover and the reaction plate, ensuring the authenticity of the measured bearing capacity.
4. The oil cylinder and piston are sealed with special materials to achieve high sealing, low friction, and long service life.
5. Adopting professional experimental oil pump motor assembly, low noise and long service life.
6. Select ultra precision oil filters to ensure the cleanliness of the oil system and ensure the long-term operation of control actuators.
7. Computer automatic control, real-time display of current force value, peak value, test process information, etc.

8. Real time recording of test curves and high-speed sampling during the experimental process.
9. The data and report processing function provides users with a specialized report editing tool for graphic layout, which has the characteristics of flexible operation and easy learning. It can conveniently print test curves and test values.
10. The control mode has control functions such as constant stress, constant test force, and test force maintenance, as well as screen display functions for test force, peak value, piston displacement, and test curve. The test curve has force time curve, force deformation curve, and deformation time curve, and the control mode smoothly transitions.
11. Users can program on site according to experimental needs, automatically closed-loop control, cyclic loading, loading speed, and loading waveform (as the standard loading process is a cyclic waveform loading process). In short, each indicator step of the national standard can be programmed, making the entire process fully automated without manual intervention. Refer to the legend for details.
12. The software is equipped with an automatic reset system for force values, eliminating factors such as human reading errors.
13. Equipped with overload protection, when the force or displacement exceeds the rated theoretical value of the testing machine, it will automatically unload or stop the test.
14. Automatically collect and print reports on the damage load and deformation values.
IIIMain technical specifications
1. Maximum testing force: 1000KN
2. Effective testing space: 1200mmX1200mm (can be customized according to user requirements)
3. Workbench height: 50Omm
4. Force accuracy: ≤± 1% (better than level 1)
5. Loading speed adjustment range: 0.1-25KN/s
6. Deformation measurement range: 0-20mm
7. Deformation measurement accuracy: microcomputer collected 0.01mm
8. Piston stroke: 25Omm
9. Overload protection point: 3% automatic unloading beyond full range
10. Load indication accuracy: 0.1KN
11. Loading method: Electric hydraulic
12. Load control method: microcomputer control and manual stepless speed regulation, with automatic programming function.
13. Loading medium: 68 # anti-wear hydraulic oil
14. Equipped with Lenovo brand computer, 17 inch LCD monitor, HP color printer
15. Motor power: 1.5KN

16. Required voltage: 380v/220v

17. Host weight: approximately 3000kg