With its excellent product characteristics and technical advantages, the VSNDT K series industrial endoscope has played an important role in the field of subway air cylinder inspection, helping a well-known subway company to achieve efficient and accurate non-destructive testing. The following is an analysis from four dimensions: product characteristics, application scenarios, technical details and user feedback:
Mega-pixel high-definition imaging, no details can be hidden
The K series is equipped with a megapixel high-definition camera, which can clearly capture the fine structures such as the welding seams inside the air cylinder and the wall of the compressed air pipe. For example, when inspecting the welding parts of the air cylinder, it can accurately identify defects such as cracks and pores to avoid operational failures caused by poor welding.
360° all-round guidance, flexible penetration of narrow spaces
The insertion tube supports 360° arbitrary angle bending, and the single-side swing head angle exceeds 160°, which can easily penetrate the complex pipes inside the air cylinder. For example, when inspecting the compressed air pipe, even if the pipeline is winding, the cracks or sand holes can be accurately located through guidance control.
IP67 protection level, adaptable to harsh environments
The insertion tube is waterproof, oil-proof, and corrosion-resistant, and can work continuously for 30 minutes in oily or humid environments. Subway air cylinders are often exposed to lubricating oil and condensed water. This feature ensures the stability of the inspection process and the durability of the equipment.
Modular design, one machine for multiple uses
Supports quick replacement of insertion tubes of different diameters (Φ1.2mm-Φ6mm) and lengths, and adapts to various detection interfaces of air cylinders. For example, when detecting the inner wall of the shock absorber spring, an ultra-fine probe (Φ1.2mm) can be used to penetrate the gap and observe the damage of the rubber material.
Air cylinder welding quality inspection
Observe the surface and internal fusion of the weld seam through an endoscope to detect defects such as cracks and unfused welds. A subway company reported that the K series helped it increase the detection rate of welding defects to 99%, greatly reducing the operating risk.
Compressed air pipe integrity inspection
The air pipe is located in a small space at the bottom of the car, which is difficult to reach with traditional visual inspection. The K series probe can be inserted into the air pipe, and combined with the magnification function (supporting 120° field of view) to check the corrosion and cracks of the pipe wall to ensure the sealing of the air pressure system.
Shock absorber spring and air spring status assessment
Insert the probe into the spring gap and use the 360° guide function to check the wear and breakage of the spring wire. For air springs (rubber material), it can detect inner wall scratches and aging cracks, and warn of replacement needs in advance.
Dynamic video recording and quantitative analysis
Real-time video recording or photography can be performed during the detection process, and the size of the defects (such as crack length and area) can be measured. For example, a 0.5mm microcrack was found at the welding of the air cylinder during a certain inspection, and it was accurately recorded through the analog ruler function to provide data support for maintenance.
Multi-language system and portable operation
The device supports multiple languages such as Chinese and English, and has a friendly interface. The host weighs only 0.8kg and is ergonomically designed. The inspector can operate it with one hand and work continuously for 4 hours without replacing the battery.
Software scalability and file backup
The detection data can be stored in JPG/MP4 format and output to the computer for re-inspection via HDMI. A subway company established an air cylinder detection archive to achieve defect tracking and historical comparison, and optimize the maintenance cycle.
Inspection efficiency increased by 50%
Traditional inspection requires the removal of the air cylinder cover, which takes 2-3 hours. After using the K series, the inspection time of a single air cylinder is shortened to within 1 hour, and there is no need to stop the train, and the annual maintenance cost is reduced by 30%.
Industry case proof
In Shenzhen, Guangzhou and other subway lines, the K series has completed more than a thousand air cylinder inspections, successfully preventing many brake failure accidents caused by air pipe cracks. Users commented that its "image clarity is comparable to that of a microscope, and the operational flexibility far exceeds similar products."
Authoritative certification and customized services
Microvision Optoelectronics has passed the ISO9001 quality management system certification, and can customize the probe length and software functions (such as adding an infrared temperature measurement module) according to customer needs. A subway company customized and developed a special mode for air cylinder inspection to further simplify the operation process.
The VSNDT K series industrial endoscope has the core advantages of "high-definition imaging, flexible control, and strong environmental adaptability", which solves the pain points of "small space, hidden defects, and low efficiency" in subway air cylinder inspection. Its technical strength and user reputation not only help subway companies improve operation and maintenance safety, but also set a new benchmark for non-destructive testing in the rail transit industry.
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