The manhole cover pressure testing machine is designed and manufactured according to industry or national standards such as CJ/T 3012 "Cast Iron Inspection Manhole Cover", CJ/T121 "Recycled Resin Composite Material Inspection Manhole Cover", JC 889 "Steel Fiber Concrete Inspection Manhole Cover", GB/T 23857 "Inspection Manhole Cover", etc. It is used for testing the bearing capacity and deformation of manhole covers, and its structural performance meets the requirements of the testing specifications.
The main features of the manhole cover pressure testing machine are:
1. The host adopts a high stiffness structure to ensure safety during the testing process.
2. Load the oil cylinder and place it on top, with a workbench height of 500mm, for easy access and placement of manhole cover specimens.
3. The rigid pad and the piston push out end are connected by a ball joint to ensure complete 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. Jinan Xinguang manhole cover testing machine adopts a professional testing oil pump unit, with 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 experimental curves and high-speed data collection 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 experimental curves and experimental data.
10. The control mode has control functions such as constant velocity stress, constant velocity test force, and test force maintenance, as well as screen display functions for test force and test curve, and force time curve of test curve. The control mode smoothly transitions.
11. The software is equipped with an automatic reset system for force values, eliminating factors such as human error in reading the meter.
12. Equipped with overload protection, the test will automatically unload or stop when the force or displacement exceeds the rated theoretical value of the testing machine.
13. Automatically collect and print reports on the damage load and deformation values.
14. Users can program on-site according to experimental needs, automatically closed-loop control, cyclic loading, loading speed, loading waveform, etc. In short, each indicator step of the national standard can be programmed, making the entire process fully automated without manual intervention.
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