Why do we inspect cap seals ?
Induction cap sealing is widely used for packaging in many industries. The quality control of bottle cap sealing is a very important step during bottled product's processing line to assure that the products are safe to transport and store.
This applies to numerous products, including pharmaceutical, food, beverages, cosmetics, detergents, disinfectants, and pesticides among other examples. The assurance of the seal effectiveness is particularly relevant when products are potentially harmful to humans or the environment.
Partial, weak, or warped seals will cause leakage which corrupts product quality and, in some cases like pesticide bottles, threatens people's health.
During the aluminum induction seal process, lots of factors will influence the seal integrity.
- insufficient power from the induction sealer
- conveyor too fast or too slow
- improper coil height, insufficient application torque
- induction liner incompatible with the bottle
- bottle neck was flamed or chemically treated.
- other causes
Our solutions
Our system adopts a high-grade thermal imaging camera to capture the heat profile on the cap and transmit to the host machine. The Ai-powered vision inspection software analyzes the images, detect the defective products and then command the rejection unit to kick off every unqualified product automatically to the recycle bin, which are later collected by workers to re-pack up.
The method is non-invasive, automated, and can be integrated with common conveyor belts currently used in industrial plants.
Inspection Category
The machine dectects a rich variety of defects, related to either the cap or seal liners.
Caps Issues | No cap Loose cap (high cap) Tilted cap | √ √ √ |
Aluminum Seal Issues | No seal Reversely placed Seal Partial seal Moon cut Warped seal Folded Seal Low-heated seal Over-heated seal | √ √ √ √ √ √ √ |
Real Examples of good seal and defective seal and corresponding heat profiles shown in the system.

Main Features of the machine
- AI deep learning powered vision inspection software platform.
- 100% inspection on every bottle and detects all sealing defects.
- NG alarm, auto reject the defect product.
- Online inspection at production speed, up to 300 bottles/min.
- Inspection data storage, analysis & traceability.
Specifications | |
Inspection Speed | Up to 300 bottles/min |
Applicable bottles | HDPE, glass |
Bottle shape & size | Unlimited |
Applicable cap diameter | 20 - 200 mm |
Applicable caps | All regular CT caps, tip caps, and other single layer caps |
Detection precision | Average 99.6% |
Warranty | 1-year limited |
This machine is widely used in various industries whrere induction seal process in used for product pakaging.
Customer Application Scenes
Benefits of using R310 Cap Seal Inspection Machine
- Upgarde to easy and accurate automated inspection.
- Minimize quality defects to meet regulatory compliance.
- Eliminate leakage issues, protect product quality and prolong shelf life.
- Mitigate the risk of product recalls and returns.
- Protect the customer & your company brand.
Deep learning technology is adopted to train the system with massive quantity of samples data, enable to recognize any minor difference in heat profiles to ensure detection accuracy.
High Inspection Accuracy
Microleakage detectable. Even very tiny leakage or near-to-leakage can be well detected, up to customer's inspection criteria setting.

We are the leading supplier of machine vision system and machinery in China market since 2015, and over the years of development, we gaind advanced technology advantages in both custom optical hardwares and vision solutions.
Is it worthy it to implement a Vision Inspection System?
Inspection of product packaging is critical to ensure products are safely packaged for end consumers. Using a vision system you can achieve 24/7 operation and track and record every product inspected. With a Vision Inspection System you can achieve the following:
• Minimize quality defects
• Protect the customer and consumer
• Protect your company brand and reputation
• Offer a return on investment (ROI)
• Support adherence to industry best practice guidelines and industry standards
• Mitigate the risk and impact of product recalls and returns
Investment of a vision inspection system will pay off over time, by eliminating mislabeled products, label mix-ups and the associated costs resulting from mistakes, you can avoid costs from product recalls, fines and production rework.
This machine can be installed flexibly to be integrated with customer production line, and the user-friendly software interface makes it easy to operate. After a routine training, the workers will be fully capable to use this powerful inspection machine.
How to perform maintenance afterward?
This machine adopts solid and long life hardware parts which requires no or very little maintenance. Monthly routine maintenance is basically some cleaning work, such clean the camera lens. Software issues or update will be performed by remote support.