Probe Diameter and Length
Diameter: Choose according to the inspection space. Smaller diameters make it easier to reach narrow areas, but may affect image clarity.
Recommended: 4mm (general purpose), 2mm (ultra-fine, for aviation/semiconductor), 6mm (pipeline inspection).
Length: 1-3m is generally selected, with 2m being the most common (for a vehicle engine depth of 1.5m). Probes that are too long may become tangled, while those that are too short may not reach the target.
Resolution and Pixels
For general industrial endoscope applications (automotive repair, routine inspections): several hundred thousand pixels are sufficient, capable of clearly detecting cracks as small as 0.05mm.
For precision applications (aerospace, semiconductors): more than one million pixels are required to capture cracks as fine as 0.02mm.
Tricks to Avoid: Don't blindly pursue "5 million pixels"; actually measure the imaging effect on the workpiece. (The higher the pixel count, the better.)
Field of View and Focal Length
Field of View (FOV): A wide angle (e.g., 120°) is suitable for large-scale inspections, while a narrow angle (e.g., 60°) is suitable for detailed observation. Focal Length and Depth of Field: Ensure clear details at different distances and avoid image blur.
Light Source and Illumination
Light Source Type: LED is the mainstream, highly efficient and energy-efficient; high-end models support light intensity adjustment (to avoid overexposure or underexposure).
Brightness: At least 2000 lumens, higher brightness is required for dark environments.
Durability and Protection Rating
Waterproof and Oilproof: At least IP67 (splashproof and oil-resistant), essential for auto repair and chemical applications.
Temperature Range: -20°C to 60°C (general purpose); custom designs are required for high-temperature applications (e.g., 200°C).
Material: Probes made of tungsten wire mesh or stainless steel are recommended for wear and corrosion resistance.
Portability and Flexibility
Portable: Small and lightweight (such as handheld) for outdoor use.
Probe Flexibility: Flexible endoscopes are suitable for complex pipelines, while articulated endoscopes can rotate in multiple directions (higher accuracy but more expensive).
Other Features
Display: High-definition touchscreens (7 inches or larger) are easy to operate and support real-time on-screen viewing. Data Transfer: Supports USB, Wi-Fi, and Bluetooth for convenient image and video export.
Modular Design: Interchangeable probes (e.g., 2mm, 4mm, and 6mm) save costs.
Aerospace
Inspection Targets: Internal defects in engine turbines, combustion chambers, and high-pressure compressors.
Requirements: High resolution (above one million pixels), high-temperature resistance (200°C+), and radiation resistance.
Automotive Manufacturing and Repair
Inspection Targets: Engine blocks, fuel injectors, and the interior of transmissions.
Requirements: Portability, oil and water resistance (IP67), and medium pixel count (hundreds of thousands).
Power Industry
Inspection Targets: Internal corrosion in transformers, steam turbines, and pipelines.
Petrochemical Industry
Inspection Targets: Internal corrosion/blockage in pipelines and containers.
Precision Casting and Mechanical Manufacturing
Inspection targets: Casting defects (sand inclusions, burrs), internal wear of machinery.
Municipal and Construction
Inspection targets: Drain pipes, cracks in building structures.
Precautions
Don't blindly pursue high resolution; measure the imaging results.
Modular design (replaceable probes) saves long-term costs.
Preferably, choose an LED light source with light intensity adjustment. By following the above steps, you can accurately match your needs, avoid pitfalls, and choose the most suitable industrial endoscope.
Shenzhen Vsndt Co., Ltd. (Vsndt) specializes in providing professional endoscope solutions for a wide range of users. We primarily serve high-end industrial endoscope brands in industrial settings, aiming to offer non-destructive internal visual inspection solutions to industrial end-users. In the future, Vsndt will uphold the mission of "Protecting Precision Manufacturing and Building a Century-Old Brand," continuously improving its development and striving to provide customers around the world with even higher-quality products and services, thereby safeguarding the high-quality development of the industrial sector. Choosing a borescope manufacturer requires comprehensive consideration of multiple factors, including manufacturer size, product performance, after-sales service, and R&D capabilities. Only by choosing the right manufacturer can you purchase a borescope with excellent performance and reliable quality, providing strong support for equipment inspection and maintenance.
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