Palletizing robot / Cobot: 🤖 Ergonomics, speed and end-of-line automation

Introduction: The hardest and most boring jobs

Palletizing – the final stacking of cartons, crates or bags onto a pallet – is traditionally one of the most difficult, monotonous and least popular tasks in industry. It is a job that leads to fatigue, errors in layering and, most importantly, frequent injuries from overloading and repetitive motion.

A palletizing robot or cobot is a solution that automates the end of the production line. It ensures 100% folding accuracy, protects employee health and allows continuous operation. The choice between a traditional robot and a collaborative cobot depends on a key factor: the required speed and weight of the package.

Main part: Cobot vs. Traditional palletizing robot

Both types of robots serve the same purpose, but differ in their design philosophy.

1. Palletizing cobot (Flexible solution for small businesses)

Collaborative robots are ideal for companies with smaller production volumes or with the need to frequently change the palletizing pattern (different boxes).

• ➡️ Easy setup: The cobot is programmed intuitively, often by manually guiding the arm, and the entire setup process takes minutes.
• ➡️ Safety and space: Can work next to a person, which saves space in the hall.
• ➡️ Limitations: Cobots (typically with a load capacity of up to 20 kg) are slower and not suitable for extremely fast lines or very heavy bags.

2. Traditional industrial robot (Solution for high load and speed)

Traditional industrial robots (e.g. FANUC, KUKA) are designed for maximum performance and speed.

• ➡️ High throughput: They are necessary for fast production lines or handling heavy loads (e.g. 50 kg and more).
• ➡️ Safety: They require a safety cage because they move at high speeds that would be dangerous for humans.
• ➡️ Programming: It is more complex and requires specialists.

Key components of palletizing

Regardless of the type of arm, palletizing requires accessories that will make the work more efficient:

• ➡️ Gripper (End-Effector): The most commonly used is a vacuum gripper (vacuum suction cups) for cartons, which ensures a fast and secure grip. Mechanical grippers are used for bags or complex shapes.
• ➡️ Palletizing software: Special software where the operator enters the dimensions of the pallet and box. The system automatically generates the optimal stacking pattern (palletizing scheme) and calculates the robot path - without the need for programming.
• ➡️ Sensors: The robot is equipped with sensors to detect the presence of a box, an empty pallet, and a full pallet so that it can automatically switch to the next stacking cycle.

Economic benefit: Return on investment (ROI)

Palletizing is one of the applications with the fastest payback because:

• Protects health: Eliminates the risk of injury from repetitive lifting, which reduces sick leave and accident costs.
• Works 24/7: The robot or cobot also works on night shifts, thereby multiplying the throughput of the line.
• Accuracy: Eliminating stacking errors ensures that pallets are safe, stable, and meet the demands of logistics centers.

Conclusion: Tailor-made solutions

Palletizing robotics is an effective solution that eliminates the most labor-intensive manual work and ensures smooth operation at the end of your production line. The decision between a cobot and a traditional robot should always be based on your need for speed and the weight of the goods being handled.

Do you want to optimize the end of your production line and relieve your employees of strenuous work? Visit svet-robotu.cz and discuss with us whether a flexible palletizing cobot or a high-speed industrial robot is more suitable for your production volume.