LBT-3000 Flexible Rail Self-Locking Device Static Performance Testing Machine
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Description
Product Introduction:
The self‑locking device static performance testing machine (also known as the self‑locking device static load testing machine or the rope‑grabber static tensile strength testing machine) is manufactured in accordance with GB 24537, “Fall Protection—Self‑Locking Devices with Rigid Guide Rails.” It is widely used by occupational safety and health inspection agencies, manufacturers of safety equipment, power‑and‑construction safety testing centers, and third‑party protective‑equipment laboratories to evaluate the structural reliability, locking stability, and resistance to permanent deformation of self‑locking devices under their rated static loads. As such, it serves as a core piece of equipment for factory acceptance testing, type‑approval testing, and regulatory spot‑check inspections of self‑locking devices.
Technical Specifications:
| Parameter Category | Parameter content |
| Maximum test force | 50kN |
| Test force measurement range | 0.4%–100% (200 N–50,000 N) |
| Test force indication accuracy | Better than ±0.5% of the indicated value |
| Test force resolution | 1/500,000 |
| Beam displacement measurement accuracy | Resolution better than 0.0025 mm |
| Deformation measurement accuracy | ±0.5% (within the range of 0.2–10 mm) |
| Test speed range | 0.01–500 mm/min, stepless speed regulation |
| Speed control accuracy | ±1% (0.01–10 mm/min); ±0.5% (10–500 mm/min) |
| Constant force, constant deformation, and constant displacement control ranges | 0.2%~100%FS |
| Control accuracy for constant force, constant deformation, and constant displacement | When the setpoint is less than 10% of full scale, the deviation shall be within ±1.0% of the setpoint. When the setpoint is ≥10% FS, the deviation shall be within ±0.1% of the setpoint. |
| Deformation rate control accuracy | When the rate is less than 0.05% FS, it is within ±2.0% of the setpoint. Within ±0.5% of the setpoint when the rate is ≥0.05%FS. |
| Test space | A: Stretching space: 3000 mm B: Compression space: 3000 mm C: Effective test width: 600 mm |
| Fixture type | Customized according to requirements |
| Platen size | Φ100 mm |
| System power supply | Single-phase 220 V ±10%, 50 Hz, Power: 1.5 kW |
| Work environment | Room temperature—35°C, with relative humidity not exceeding 80% |
| Host dimensions | Approx. 1050×550×4200 mm |
| Weight | Approximately 1000 kg |
Overall configuration of the LBT-3000 flexible rail self-locking device static performance testing machine:
Host
1.1 The host adopts a floor-mounted frame structure, offering high strength, minimal deformation, and an elegant, aesthetically pleasing appearance.
1.2 Employs imported high-precision ball screws for efficient and smooth transmission;
1.3 Employs a high-precision spoke-type load cell, offering high measurement accuracy and excellent stability.
1.4 The transmission system employs an arc-tooth synchronous belt drive, ensuring backlash-free operation in both directions during transmission.
1.5 Employs imported AC servo motors and drive systems to ensure smooth transmission and stable torque, equipped with protection features against overcurrent, overvoltage, and overload; the speed ratio can reach as high as 1:100,000.
1.6 The fixture is specially designed to provide secure clamping, convenient operation, and eliminates jaw slippage.
1.7 Special manufacturing processes ensure the coaxiality of the testing machine, effectively eliminating the influence of irregular specimens on the sensor.
Control software
It complies with the relevant provisions of more than thirty national standards, including GB 2611-2022 and GB 228-2021, and can also perform tests and process data according to a variety of standards such as GB, ISO, JIS, ASTM, DIN, as well as user‑provided specifications, while offering excellent scalability.
It complies with the relevant provisions of more than thirty national standards, including GB 2611-2022 and GB 228-2021, and can also perform tests and process data according to a variety of standards such as GB, ISO, JIS, ASTM, DIN, as well as user‑provided specifications, while offering excellent scalability.
1. The computer control system boasts high integration, stable performance, and convenient adjustment. It enables real-time acquisition of experimental data and provides dynamic, real-time display of experimental characteristic curves. Experimental data files can be saved in either the widely used Access database format or the more robust SQL Server database, facilitating resource sharing and network management for clients, as well as subsequent user analysis. Moreover, the software seamlessly supports user‑defined Word 2000–style reports, addressing the challenge of varying reporting requirements across different users or within the same user over time. The system can process raw data for test force, displacement, and time, as well as derived curves.
2. Protection Features: This machine is equipped with both software‑based and mechanical limit‑protection mechanisms, with the percentage of automatic shutdown upon exceeding the maximum load dynamically adjustable; it also incorporates multiple protection functions, including overcurrent, overvoltage, and overload protection.
3. The load channels can be automatically labeled, providing intuitive and convenient visualization.
4. Batch testing enables hierarchical display of curves and automatic curve tracking.
5. This software allows users to set custom speeds and adjust them via the computer. It also supports high-precision speed calibration, enabling real-time adjustment of speed levels and encoders.
6. Monitoring the testing process: Real-time display of various parameters, including test force, displacement, and load–displacement curves, is available during the test.
7. Software Permission Hierarchical Management Function: To enhance the security of the software and its data, this software supports role-based access control by configuring distinct password protections.
8. Result Reproduction Function: After completing the test procedure and saving the data, users can reopen the results at any time and re-analyze the experimental data as needed.
9. Users can select load–time, load–displacement, displacement–time, and other curves as needed to perform tests, and to display, store, analyze, and print the results.
10. Point-by-point traversal of the curve: Users can click on the curve with the mouse to obtain the force and deformation values at each point, thereby calculating various parameters for every data point.
11. Result Comparison Function: Allows simultaneous viewing of multiple test curves and enables comparison of the characteristics of samples under analysis through curve superposition and local magnification.
12. Force Interface: The force-channel interface and test software can be equipped with various sensors according to user requirements, and support calibration, parameter modification, and routine testing.
13. Data sampling frequency: A high-speed sampling frequency can be selected according to the user’s test requirements.
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