What Are Cobots? Collaborative Robots Explained

Cobots use sophisticated sensors to detect human presence, navigate complex environments and avoid obstacles, including force and torque sensors to detect contact, vision systems and cameras for object recognition, proximity sensors for distance measurement, and speed and position sensors for motion control.

Advanced control algorithms process sensor data in real time, allowing cobots to adjust their speed, force and trajectory to prevent collisions and ensure safe operation alongside humans.

The integration of AI and machine learning enables cobots to learn from their environment and continually improve their performance over time.

Cobot programming generally does not require the same sophistication as traditional robots, which can lower the overall price tag. Many cobots feature lead-through teaching and hand-guiding, letting users demonstrate tasks by physically guiding the robot arm.

Built-in features such as force and speed monitoring, collision detection and emergency stop functions ensure cobots can operate safely in close proximity to humans.

The primary international standard covering safety requirements for industrial robots, including cobots. The revised ISO 10218:2025 expands robotics safety to include secure integration into applications and robotic cell environments. The requirements of ISO/TS 15066 are now part of the ISO 10218 series, consolidating collaborative-robot safety into one set of standards.

A technical specification that specifically addresses collaborative robot safety, defining force and pressure limits for different body regions.

Cobots operate with limited force and power, reducing the risk of injury if contact occurs.

The system tracks the position and speed of cobots, along with forces and torques, maintaining a safe distance from workers.

The cobot stops automatically if a human enters its workspace.

Operators physically guide the cobot through tasks, with the robot monitoring and limiting forces during guidance.

Cobots handle pick and place and light assembly on the line.

Including collaborative palletising at the end of line.

Automated visual checks for consistency and defects.

Loading and unloading machines.

Work requiring dimensional accuracy and superior surface finish, including ultrasonic welding.

Moving components and products between stations.

Cobots with robotic arms use machine vision and AI to pick items from bins, totes or shelves.

Collaborative packing and sortation of orders.

Collaborative palletising and de-palletising of loads.

Supporting goods-to-person and fulfilment workflows.

High-mix assembly and material handling.

Precision assembly of small components.

Food and beverage production and packing lines.

Drilling, fastening and inspection tasks.

Pharmaceutical and light manufacturing operations.

E-commerce and retail fulfilment.

By handling repetitive and physically demanding tasks such as picking, packing and sorting, cobots free human workers for more complex, value-added activities.

Integrated safety features such as collision-detection sensors reduce the likelihood of workplace accidents.

Cobot technology is no longer viable only for larger operations; simpler programming lowers the overall price tag.

Cobots can be deployed without extensive guarding or layout changes, scaling from a single unit to a fleet.

Cobots deliver repeatable performance and consistent quality.

Cobots reduce dependency on manual labour and streamline key processes.

Long-term cost savings and efficiency gains offset the initial investment.

Cobots typically have lower payload capacities than traditional industrial robots, which can handle 800kg or more.

Cobots generally operate at slower speeds to maintain safety.

Highly complex or high-speed applications may still require traditional industrial robots.

Under the updated ISO 10218 standards, safety must be assessed at the application level.

Cobots still require proper integration planning and expertise.

Cobots work alongside humans rather than replacing them, still needing human oversight for complex decisions.