AI-Powered Visual Inspection for PTC Ceramic Chips - Ensuring Precision, Reliability, and Quality
In the manufacturing of PTC heating elements and thermistors, the PTC ceramic chip plays a crucial role as the core heating and sensing component.
Its surface quality and electrode uniformity directly determine product performance, thermal efficiency, and long-term reliability.
However, during high-speed production, even a minor surface defect-such as electrode unevenness, edge chipping, or subtle warpage-can lead to performance instability, overheating, or early failure.
That's why leading manufacturers are now embracing AI-based visual inspection systems to ensure consistent quality and defect-free production.
Comprehensive Defect Detection for PTC Ceramic Chips
The AI Surface Defect Detection System developed by OPENEX Intelligence is specially designed for PTC ceramic chip inspection.
It conducts full-surface analysis across the top, side, and electrode areas, effectively identifying the following common defects:
· Uneven or displaced electrodes
· Spark marks or electrode misalignment
· Edge chipping or corner breakage
· Side bending or end-face deformation
· Surface scratches, contamination, or material residue
· Edge stains, color variation, or minor adhesion defects
Powered by deep learning algorithms and high-resolution industrial cameras, the system detects even the smallest defects that traditional AOI or manual inspection may overlook - ensuring every ceramic chip meets the highest standards.
Key Advantages: Fast, Accurate, and Intelligent
1. Ultra-High Speed
With an inspection speed of max. 800 pieces per minute, the system keeps pace with modern high-volume production lines - enabling 100% inspection rather than random sampling.
2. Smart Mechanical Design
A pre-screening mechanism removes broken, sharp-edged, or irregular parts before inspection, reducing the risk of jamming or scratching.
3. AI-Enhanced Detection
The integrated AI deep-learning engine continuously learns from new samples to enhance recognition accuracy for tiny defects such as edge residue, color stains, and micro-chipping.
4. Self-Cleaning
An automatic cleaning mechanism keeps the glass plate clear of dust and debris, extending its lifespan and maintaining consistent optical clarity for stable long-term inspection.
Data-Driven Quality Control
Inspection data and images can be seamlessly connected to MES or QMS systems, providing:
· Real-time defect visualization
· Traceability and batch analysis
· Trend tracking and process optimization
This enables manufacturers to transform quality control from reactive inspection to predictive improvement.
Reliable PTC Components, Powered by AI Vision Inspection
A PTC ceramic chip may be small, but it lies at the heart of every heating system.
OPENEX Intelligence is committed to advancing AI visual inspection technology for the ceramics and electronics industries - offering high-speed, high-precision, and adaptive inspection solutions that empower manufacturers to achieve defect-free production.
Every perfect ceramic chip carries the precision of AI Vision Inspection. Contact us to learn more or schedule a live demo of our AI-powered inspection system.
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Openex Intelligence's self-developed AI optical inspection machines utilize both rule-based traditional algorithms and deep learning algorithms to detect defects of almost all sizes. Integrated with multiple functions such as automatic loading and unloading, automatic assembly, and automatic packaging, our machines are widely used in various industries including automobiles, machinery, new energy, semiconductors, power, and electronics. Furthermore, some of our machines are exported to well-known overseas customers in Canada, Israel, Thailand, Vietnam, and other countries.
Openex Intelligence provides its customers with an extensive range of industry-leading fastener inspection and sorting equipment. The cutting-edge solutions utilize advanced technologies such as optical, eddy current, laser, and machine vision systems to efficiently eliminate defective, or mixed parts from production lots.
For a smooth and efficient feasibility assessment, please kindly provide us with the following guidelines for the inspection requirements.
Detail drawings:
We would greatly appreciate it if you could provide us with detail drawings of the parts that require inspection. These drawings will serve as essential references for our inspection process.
Key dimensions:
Your clear indication of the key dimensions that necessitate inspection would be immensely helpful. Please include the required dimension tolerances as they play a crucial role in ensuring the accuracy of our inspection.
Specified defects:
To better understand and meet your specific needs, please define the types of surface defects that are deemed unacceptable. Providing us with detailed photos and thorough descriptions of these defects will enable us to fine-tune our equipment accordingly.
Standards and certification requirements:
If there are any specific standards or certifications in your location that the machines must adhere to, we would appreciate it if you could specify them. These information will help us ensure that our equipment meets the necessary regulatory and quality assurance criteria.
By kindly providing us with the above-mentioned information, you will greatly contribute to the smooth progression of the feasibility assessment. It will allow us to tailor our solution to your precise requirements and deliver optimal results.
We look forward to working with you to provide a reliable and effective inspection solution.

Advanced Inspection and Sorting Solutions for Various Industries
Our sorting machines cater to the needs of the new energy, automotive, electronics, semiconductors, and other industries. With the ability to handle a diverse range of fasteners such as springs, gears, nuts, washers, bushings, valve seats, tube fittings, and more, our solutions are designed to meet your specific requirements.
Additionally, we offer customization options for non-standard part inspection, ensuring a comprehensive sorting process tailored to your needs.
Inspection Capabilities
Our inspection capabilities encompass a wide array of measurement options, extending beyond the ones mentioned above. We offer a diverse range of inspection choices to cater to your specific needs and requirements.



High Resolution Industrial Cameras & Lens
Our machines use the high resolution CCD cameras, with self-developed system and accurate image recognition & processing software. It can achieve the most inspection requirements with the least amount of camera, saving customer cost to the greatest extent and expanding production capacity.
AI-combined Solutions
With multi-sensor data fusion, advanced image processing, modeling, simulation and optimisation, self-developed software and AI algorithms, Openex Intelligence provides stable, efficient and accurate inspection solutions to meet customers' various demands, needs, and wants.
AI Advantages: Traditional Algorithm VS Deep Learning Algorithm
Traditional Algorithm
Traditional algorithms mainly take the width of thread's bright border, and continuity characteristics for inspection.
Deep Learning Algorithm
AI deep learning algorithms proceed the inspection by steps of image marking, training, model testing, and process verifying, etc.
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Inspection Results for Good Products
|
Traditional Algorithm
|
AI Algorithm
|
|
Total Good Products
|
308
|
284
|
|
Detected Qty
|
158
|
279
|
|
False Detected Qty
|
150
|
5
|
|
Detected Rate
|
51.3%
|
98.2%
|
|
False Detected Rate
|
48.7%
|
1.8%
|
|
Inspection Results for NG Products
|
Traditional Algorithm
|
AI Algorithm
|
|
Total NG Products
|
51
|
263
|
|
Detected Qty
|
49
|
263
|
|
False Detected Qty
|
2
|
0
|
|
Detected Rate
|
96.1%
|
100%
|
|
False Detected Rate
|
3.9%
|
0%
|
Openex Intelligence is a technological-driven machine vision automation company under Openex Group. The company specializes in the R&D and production of AI-powered visual inspection machines, robotic integration and industrial automation systems.

With the spirit of integrity, innovation, and excellence, Openex Intelligence is dedicated to providing the first-class automation products and services. Our experienced software and hardware engineers of Openex Intelligence R&D team bring your ideas from design to implementation.
