Product Introduction:
The microcomputer-controlled manhole cover pressure testing machine's main unit features a high-stiffness structure for safety during testing. It employs ultra-fine filter oilers to ensure the cleanliness of the oil circuit system, thereby guaranteeing the long-term operation of control and execution components. Designed and manufactured in accordance with industry or national standards such as GB/T 23858-2009 "Inspection of Manhole Covers"; GB/T 26537-2011 "Steel Fiber Reinforced Concrete Manhole Covers"; JC889-2001 "Steel Fiber Reinforced Concrete Manhole Covers"; and JC/T948-2005 "Steel Fiber Reinforced Concrete Grating Covers," it is used for testing the load-bearing capacity of manhole covers. Its structural performance fully complies with testing specifications. On-site, users can program according to experimental needs, achieving automatic closed-loop control, cyclic loading, loading speed, and loading waveforms (as the standard specifies a cyclic waveform loading process). In summary, it can program every indicator and step of the national standard, enabling the entire process to be fully automated with no manual intervention.
Product Images:
Key Features:
1. The main unit features a high-stiffness structure with the loading cylinder positioned below, facilitating the handling of well cover samples and ensuring safety throughout the testing process.
2. The rigid spacer and the piston's push-out end are connected with a ball and socket joint, ensuring complete contact between the manhole cover and the counterforce plate, guaranteeing the authenticity of the measured load-bearing capacity.
3. Special materials are used for sealing between the oil cylinder and piston, achieving high sealing, low friction, and long service life.
4. Equipped with a professional test oil pump motor set, featuring low noise and long lifespan.
5. Select ultra-fine filter oilers to ensure the cleanliness of the oil circuit system, thereby guaranteeing the long-term operation of control and actuating components.
6. Computerized automatic control with real-time display of test process information such as current force, peak force, deformation, displacement, etc.
7. Real-time recording of test curves during the testing process, with high-speed sampling.
8. Data and report processing features offer users a specialized report editing tool for graphic layouts, featuring flexible operations and ease of learning, enabling convenient printing of test curves and test values.
9. Control modes include constant-speed stress, constant-speed test force, force-holding, and features for displaying test force, peak values, deformation, displacement, and test curves on the screen. Test curves include force-time curves, and smooth transitions between control modes.
10. On-site, users can program according to experimental requirements, achieve automatic closed-loop control, cyclic loading, loading speed, and loading waveforms (due to the standard's specified loading process being a cyclic waveform loading process). In summary, it can program every step of the national standard, making the entire process fully automated with no human intervention.
11. The automatic reset system for software set force values eliminates inconsistencies in manual reading errors and other factors.
12. Overload protection is in place, automatically discharging or stopping the test.
13. Automatically collect and print reports on parameters such as destructive load.
Complete machine configuration
1. Manhole Cover Pressure Test Machine Main Unit 1 set
(Including: cylinder pistons (lower-mounted), displacement gauges, force sensors, protective meshes)
2. Rigid blocks and rubber washers 2 sets
（φ250*40，φ356*40）
3. Control Oil Source 1 Unit
(Including: electric motor oil pumps, servo control systems, oil filters, and several oil pipes)
4. Lenovo computers, LCD monitors - 1 unit
5. HP Printer 1 unit
6. Instruction Manual, Certificate of Compliance, Warranty Card, Packing List - 1 set
7. Software Installation CD - 1 Piece
Testing Machine Operating Conditions
At room temperature of 10℃-35℃, the relative humidity should not exceed 80%.
2. Correctly installed on a stable foundation, with a level of 1/1000.
3. In a vibration-free environment, with no corrosive media or electromagnetic field interference around.
4. Voltage fluctuations should not exceed ±10% of the rated voltage.
5. The testing electrical control cabinet should ensure reliable grounding.
