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Collaborative Robots: What 'Cobot' Actually Means in a Warehouse
Collaborative robots in warehouses explained: what "collaborative" means under ISO 10218:2025, the four safety methods, and how to assess shared work.
6 min read
· Updated
November 2026
At a glance
What it means
Collaborative robots in warehouses work in applications designed for people and robots to share space, using methods such as speed and separation monitoring or power and force limiting.
What changed in 2025
ISO 10218:2025 replaced "collaborative robot" with "collaborative application" and brought in collaborative safety requirements formerly in ISO/TS 15066.
What it doesn't mean
Safe out of the box. Every collaborative application still needs a documented risk assessment covering the robot, gripper, items, and layout.
Collaborative robots in warehouses are robots used in applications designed for people and robots to share space safely, using methods such as speed and separation monitoring or power and force limiting. Under ISO 10218:2025, "collaborative" describes the application, not the robot, because only the actual use can be designed, tested, and confirmed as collaborative.
"Cobot" is one of the most stretched words in automation. Vendors use it for small arms, for mobile robots that slow down near people, and for almost anything with a rounded shell. Then your EHS manager asks which standard the system meets and whether it needs guarding, and the label answers neither question.
This guide to collaborative robots in warehouses covers what "collaborative" means in the robot safety standards, what changed in 2025, how the idea applies to arms and mobile robots in a warehouse, and the misconceptions that cause trouble during deployment. For arm types and what each is good at, see our guide to robot arms in warehousing.
Collaborative describes the application, not the robot
The core international safety standard for industrial robots is ISO 10218, and ISO published new editions of both parts in 2025. According to A3, ISO 10218-1:2025 covers industrial robots and is aimed at manufacturers, while ISO 10218-2:2025 covers industrial robot applications and robot cells and is aimed at integrators.
The revision changed the vocabulary. According to A3, the revised standard no longer uses the terms "collaborative robot" and "collaborative operation". It uses "collaborative application" instead, because only the actual use of a robot can be designed, tested, and confirmed as collaborative. The same robot can be part of a collaborative application at one station and a fenced cell at another.
The 2025 editions also brought in material from ISO/TS 15066, the 2016 technical specification on collaborative robot safety. According to A3, ISO 10218-2:2025 incorporates the safety requirements for collaborative applications that were formerly the content of ISO/TS 15066. ISO's catalog still lists ISO/TS 15066:2016 as published, with a status of "to be revised," so you will still see it cited in vendor documents and older risk assessments.
Four safety methods for collaborative robot applications
OSHA's technical manual chapter on industrial robot safety describes the technologies a collaborative application uses while running in automatic mode:
Speed and separation monitoring: sensors detect people approaching, and the robot slows or stops as they get closer, stopping before contact can happen.
Hand guiding: the robot moves under a worker's direct control.
Power and force limiting: contact between the robot, its end effector, or the item it holds and a person is expected, so forces and pressures are limited to avoid injury.
Safety-rated monitored stop: the robot stops when it detects an intrusion. OSHA notes it must be combined with one of the other three. The 2025 ISO revision renamed it "monitored standstill", according to A3.
Real applications often combine methods. A station might rely on power and force limiting for close work and speed and separation monitoring for the wider reach zone. Which methods apply, and how they are configured, comes out of the risk assessment.
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Cobot arms vs collaborative mobile robots
Collaborative arms
Most arms sold as cobots are built for power and force limiting, with sensing in the joints that detects contact and slows or stops the arm. OSHA notes that applications using these robots usually run at much lower speeds and payloads than the robot is physically capable of, so contact doesn't carry enough energy to injure. Factor that into station design before you size output.
Mobile robots
Mobile robots share aisles with people, carts, and forklifts. OSHA notes that industrial mobile robots can be collaborative or non-collaborative, and that one could drive into a worker much as a vehicle could. In the U.S., their safety standard is R15.08, which A3 describes in parts: Part 1 for the robots themselves, Part 2 for industrial mobile robot systems and integration, and Part 3 for users.
Mobile manipulators
Put an arm on a mobile base and you have both sets of hazards: the arm's motion and the base's travel. A3 classifies an industrial robot arm on a mobile platform as a Type C industrial mobile robot. The risk assessment has to cover both, at every location where the robot works. Our guide to mobile manipulation goes further.
Where collaborative robots work in a warehouse
Shared pack-out and kitting lines: robots and associates at the same line, splitting order types or handing off items.
Shared aisles: mobile robots and people picking in the same zones.
Induction alongside people: robots and associates feeding the same sorter.
Exception handoffs: a person clears an item the robot flagged without shutting down a cell.
In each case, the useful question isn't whether the robot is a cobot. It's whether the whole application, including the gripper, the items, the layout, and the people, has been assessed for shared work.
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Common misconceptions about collaborative robots
"A cobot is safe out of the box"
OSHA warns that even low-energy robots that look harmless, with payloads as low as 6½ pounds (3 kilograms), can be used in very dangerous applications. It recommends a documented risk assessment for each robot application before commissioning, reviewed periodically, with workers involved.
"Collaborative means no safeguarding"
OSHA notes that a collaborative robot application typically needs both active and passive protective measures. Area scanners, speed limits, and partial guarding are common parts of a collaborative setup.
"Only the robot matters"
In power and force limiting, contact limits apply to the robot, the end effector, and the workpiece together. A sharp-edged gripper or a heavy, hard-cornered item changes the risk. OSHA lists rounded corners and padding on end effectors and fixtures among passive measures.
"Collaborative and autonomous are opposites"
Collaborative describes how a robot shares space with people safely. Autonomous describes how it decides what to do. A robot can be both, either, or neither.
"Once assessed, always assessed"
Change the gripper, the items, the station layout, or the speed settings and you may have a different application. Reassess when the work changes.
Collaborative or guarded: how to decide
Collaborative isn't always the right answer. Use it where the benefit of sharing space outweighs the limits it puts on the robot:
Choose a collaborative application when people and robots need to work at the same line, when floor space is tight, or when the robot moves through areas people use.
Choose a guarded cell when the robot handles heavy or sharp items, needs full speed to justify the investment, or works in a zone people rarely enter.
Combine them when a robot should work at full speed while the area is clear and slow or stop as a person approaches. That is what speed and separation monitoring is for.
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Questions for your vendor and EHS team
Which standards does the robot meet, and which edition: ISO 10218-1:2025 or an earlier one? For mobile robots, which part of ANSI/A3 R15.08?
Who performs and documents the risk assessment for our application, and who signs off?
Which collaborative methods are used, and how are the safety settings configured and protected from change?
What speed and force limits apply at each station, and how do they affect output?
What triggers a reassessment: new SKUs, a new gripper, a layout change?
What training do associates working next to the robot need?
Where Avatar fits
Avatar drops into an existing pack-out line and works alongside your team, with no conveyor changes or special fixtures, and kits subscription boxes and beauty kits inline with people in the same workflow. See how that works on the Avatar packing and kitting pages.
Frequently Asked Questions
What is a collaborative robot in a warehouse?
In a warehouse, a collaborative robot or cobot is a robot designed to work near people, usually an arm that limits contact force or a mobile robot that slows as people approach. The 2025 edition of ISO 10218 no longer uses the term; it treats collaboration as a property of the application, confirmed through risk assessment.
Do collaborative robots need safety guarding?
Often some. Collaborative applications typically combine active measures, such as area scanners and speed monitoring, with passive ones, such as padding and rounded edges. Whether a fence or partial guarding is needed depends on the risk assessment for the specific application.
Is ISO/TS 15066 still valid for collaborative robots?
ISO still lists ISO/TS 15066:2016 as published, with a status of to be revised. Its collaborative safety content has been brought into the 2025 editions of ISO 10218, so new projects should reference ISO 10218-1:2025 and ISO 10218-2:2025.
What is the difference between a cobot and an industrial robot?
A cobot is an industrial robot designed for collaborative applications, typically with force sensing and speed limits so it can share space with people. A traditional industrial robot usually runs faster and heavier inside a guarded cell. Both fall under ISO 10218, and either can be unsafe if the application isn't assessed.
Sources
1. Association for Advancing Automation (2025, March 20). Updated ISO 10218: Answers to Frequently Asked Questions (FAQs). A3.
2. ISO (2016). ISO/TS 15066:2016, Robots and robotic devices — Collaborative robots. International Organization for Standardization.
3. Occupational Safety and Health Administration. OSHA Technical Manual, Section IV, Chapter 4: Industrial Robot Systems and Industrial Robot System Safety. U.S. Department of Labor.
4. Association for Advancing Automation (2021, February 15). Mobile Robot Standard R15.08-1-2020: What You Need to Know. A3 Industry Insights.
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