WJM series microcomputer-controlled electro-hydraulic servo anchorage testing machine is mainly used for the static load anchorage performance test of steel strand-anchor in the construction of railway bridges, water conservancy, electric power and other infrastructures. Static load anchorage and low cycle load performance test of steel strand anchorage with anchors, clamps and connectors to judge whether the mechanical properties of steel strand anchorage meet the specified requirements
Features:
One-button tightening and withdrawing anchor technology.
It can automatically calculate the friction loss rate of the anchor mouth, and can complete the static load anchorage test of anchorage, fixture and connector.
Any number of indication display columns can be configured, and the content, unit and format of the display columns can be set.
The unit of measurement system can be customized, and the required unit of measurement can be set.
Two-level permission management, which specifies different permissions for administrators and testers by default.
The test is based on the group, and the samples in the group can be tested continuously and can be statistically evaluated.
The interface layout can be customized, the number of graphs can be arbitrarily selected from 1 to 3, the layout can also be switched arbitrarily, and the image can be exported as a single image.
It can perform test analysis, display feature points for a single curve, modify it online, and compare multiple curves within a group.
Support single printing, group printing, and report templates can be set separately. The report supports both Excel and MasterReport, and both can be set.
It adopts high-reliability communication protocol, supports response, verification, timeout and other mechanisms, and the underlying communication method can be seamlessly replaced by serial port and Ethernet.
It can be used with a variety of different models, and can support various hydraulic, electronic and some special-shaped testing machines. Each channel can support multiple types of sensors, and at the same time support switching between multiple types of sensors.
The test supports general mode, stretch mode and special mode.
The dedicated mode is completely customized according to the test specifications, and meets the requirements of the specifications to the greatest extent.
The general mode adopts open settings, which can customize the entry name, symbols, rounding up, and formulas; the test can be divided into three stages: preloading, formal loading, and post-processing. Each stage can be customized, and the test steps of formal loading can be edited.
Main technical parameters and specifications:
| Model Specifications | WJM-5000 | WJM-6500 |
| Maximum Test Force (Kn) | 5000 | 6500 |
| Measuring Range (kN) | 250~5000 | 250~6500 |
| Force Error (%) | ±1 | ±1 |
| Displacement Measurement Range (mm) | 00～200 | 00～200 |
| Indication Error (%) | ±1 | ±1 |
| Repeatability (%) | ±0.5 | ±0.5 |
| Relative Resolution (%) | 0.5 | 0.5 |
| Long-term Stability (%) | 1 | 1 |
| Piston Stroke (mm) | 200 | 200 |
| Stretch Spacing (mm) | 3400 | 3600 |
