Automatic visual inspection machines use high-tech features to ensure quality inspections at scale and quickly. You can choose two main types of automatic visual inspection machines: single-camera and multi-camera.

We’ll discuss the advantages and disadvantages of each type of machine to help you decide which one is better suited for your company’s requirements.

Advantages of Single-Camera Visual Inspection Machines

A single-camera visual inspection machine uses one camera to capture an image of a product and then analyzes that image to detect defects or flaws. Typically, this camera sits above the products as they zoom by.

1. Cost-Effective

Single-camera inspection machines are less expensive than multi-camera machines, making them a viable option for small and medium-sized businesses or companies with limited capital investment.

2. Smaller Size

Typically, single-camera models are smaller, and your team can easily integrate one into existing production lines. You have the potential to save space while minimizing downtime and disruptions.

Disadvantages of Single-Camera Visual Inspection Machines

Single-camera visual inspection machines have two main disadvantages.

1. Fewer Inspection Capabilities

Single-camera inspection machines are only capable of detecting defects or flaws that are visible in a single image. They may be unable to detect defects hidden from view, on the sides, or underneath. You might see longer times on your production line because your team spends more energy and effort inspecting possible defects. 

2. Slower Inspection Speed

Because there is only one view from the top of the item,  single-camera inspection machines may not be suitable for high-speed production lines. You’ll want to upgrade to models with more technology if speed is of the essence.

Advantages of Multi-Camera Visual Inspection Machines

Multi-camera visual inspection machines capture images of a product from different angles. These images are then analyzed to detect defects or flaws. These cameras can be above, below, and to the side of your products as they move along your production line. 

1. Better Inspection Accuracy

Once your team integrates a multi-camera inspection machine properly, it will  significantly reduce the need for human inspections. While humans will need to make final decisions, your automatic visual inspection machine learns what defects are correct and viable. This makes the machine more accurate over time. Machine learning and deep learning are the keys to this process. Your multi-camera visual inspection machine becomes increasingly valuable the more your company uses it.

2. Higher Inspection Speed

Multi-camera inspection machines can inspect multiple products simultaneously, making them ideal for high-speed and high-volume production lines. For example, you’re a manufacturer producing nuts and bolts that must meet specific criteria. These small parts can move along the line faster, improving your time to market.

3. More Versatile Inspection Capabilities

Multi-camera inspection machines can be programmed to inspect different types of products, making them suitable for a wide range of manufacturing applications. The data saved from these production runs go into a machine-learning environment to improve over time.

Disadvantages of Multi-Camera Visual Inspection Machines

There are a few downsides to multi-camera visual inspection machines, but your company can make up for these disadvantages over time.

1. Higher Upfront Costs

Multi-camera inspection machines are more expensive compared to single-camera inspection machines, making them less accessible for small and medium-sized businesses.

2. Larger Size

Multi-camera inspection machines are larger and may require more space to install. However, as you expand your space and operations, you could mitigate these costs over time.

Contact Us for Automatic Visual Inspection Machines

Consider how much money you can save with improved quality control processes. AI and deep learning continue to improve as the technology progresses. The Doss USA team can help install, implement, and optimize your new visual inspection machine system that meets your needs for inspecting small parts with high-quality camera systems.

For more information on our capabilities, contact our North American team.