The microcomputer-controlled manhole cover pressure testing machine features a high-rigidity structure to ensure safety during the test process. An ultra-precision oil filter is selected to maintain oil system cleanliness, thereby ensuring the long-term operation of control components. Designed and manufactured according to industry or national standards such as GB/T 23858-2009 "Manhole Covers," GB/T 26537-2011 "Steel Fiber Reinforced Concrete Manhole Covers," CJ/T 3012-1993 "Cast Iron Manhole Covers," CJ/T 121-2000 "Recycled Resin Composite Material Manhole Covers," and JC 889-2001 "Steel Fiber Reinforced Concrete Manhole Covers," it is used for testing the load-bearing capacity of manhole covers. Its structural performance fully complies with the test specification requirements. Users can program on-site according to testing needs, achieving automatic closed-loop control of cyclic loading, loading speed, and loading waveform. (As specified by standards, the loading process is a cyclic waveform loading.) In short, each index specified in the national standard can be programmed, enabling full automation of the entire testing process without manual intervention.
Main Technical Specifications
Name | Technical specifications | |
Maximum test force | 600KN | 1000KN |
Effective test space | 1200mm×1200mm (customizable according to customer requirements) | |
Workbench height | 900mm (customizable according to customer requirements) | |
Force value accuracy | ±1% (better than Grade 1) | |
Adjustable speed range for loading | 0.1~25KN/s | |
Deformation measurement range | 0~20mm | |
Deformation measurement accuracy | Microcomputer collects 0.01mm | |
Piston stroke | 250mm | |
Rigid spacer block and rubber washer | One set each of φ250*40 and φ356*40 | |
Overload protection point | 3% over full scale automatic overload relief. | |
Load indication accuracy | 0.1KN | |
Loading method | Electric hydraulic | |
Load control method | Microcomputer control with automatic programming function | |
Motor power/voltage | 1.1kW;380V/220V | |
Host weight | 2000kg | |
Mainframe dimensions | 1400×1200×1435(mm); 1400×2412×1435mm (with feeding mechanism) | |
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