Standard or Robotic Palletizer: What to Choose?

Automatic palletization functions have always existed as a combination of synchronized standard mechanical processes to arrange a row of packs, followed by a layer, and then deposit that layer onto a pallet.

In recent years, the function of palletization has evolved, shifting from the use of standard electro-mechanical palletizers to employing robotic systems with articulated robots.

Articulated robots have been in existence for a considerable time, even before they were employed in palletization. The primary reason for their delayed adoption was the cost-related constraints associated with them. However, with the democratization of robots, prices have decreased to a level that is now comparable to standard mechanics. So, at a roughly comparable cost, why is the robot option for palletization winning?

Reliability: Thanks to the standardization of robotic arms, the mechanical aspects (such as gears, lubrication, and precision) have been perfected. Consequently, they are now far more reliable than any other mechanism that has ever existed. This increased reliability reduces machine downtime and maintenance costs while extending the lifecycle.

Precision: The mechanical design of robots has allowed unprecedented movement accuracy and repeatability. This precision enhances the quality of stacks on the final pallet.

Footprint: The combination of 4-axis or 6-axis movements in a single arm with a well-defined profile has significantly minimized the size of the mechanical systems. Consequently, this has led to a reduction in the overall machine footprint and increased layout flexibility. This reduced footprint enables a more adaptable configuration to meet the factory's specific space requirements.

Flexibility: Another crucial aspect to consider is the flexibility of using a robot arm. If the production speed is low, the robot can perform multiple tasks, such as pallet preparation, load placement on pallets, interlayer placement, and others. If the speed is very high, multiple robots can collaborate, each performing a specific function to reach the required capacity. This flexibility ensures the full utilization of assets and capital investment, optimizing the cost of utilizing robotic arms.

Future-Proof: The robot palletizer can be easily configured to adapt to a new package with minor mechanical modifications to the picking head, if required. And, in the event of a substantial shift in the overall application, the robot can still be useful elsewhere. This approach not only ensures longevity but also delivers enduring value over time. Considering these criteria and the comparable cost, robotic palletizers are steadily gaining ground in situations where their application is most fitting.

The Challenge: The technical skills required within the factory remain a future challenge to overcome: Despite having a user-friendly interface and experiencing minimal downtime, the robot continues to evoke fear in many industrial technicians and operators. This should not be the prevailing sentiment, as the right palletizing solution provider will offer guidance on when to regard it as an ally and when to exercise caution. In other words, it will provide support and advice regarding the suitability of the infrastructure for the robot's operation.

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