How to choose the right robot for a production task.
Robot selection starts with the real product and process. Published payload and reach are only the first filters; tooling, wrist loads, motion, cycle time, environment and safety determine whether the complete cell will work.
Check the complete payload and working envelope.
Robot payload is not the product mass alone. Add the gripper, tool changer, sensors, valves, hoses and cables, then check centre of gravity and wrist moments across the complete path.
Reach must be validated using the required approach angles and obstacles. A robot can have sufficient nominal reach but still fail to enter a machine, avoid guarding or achieve the required orientation.
- Product mass and centre of gravity
- Tooling and utility mass
- Wrist torque and moment limits
- Pick and place coordinates
- Approach and withdrawal path
- Mounting position and base loads
Select for the real cycle, duty and operating conditions.
Cycle time should include product presentation, grip confirmation, machine handshakes, process dwell, release and travel. The fastest published robot speed does not equal the finished-cell output.
Protection rating, temperature, dust, moisture, washdown, fumes and hazardous-area requirements can restrict the available equipment or require a purpose-designed enclosure and utilities.
- Target rate and peak demand
- Acceleration limits for the product
- Operating hours and duty cycle
- Repeatability and process tolerance
- Temperature, dust, water and contaminants
- Cleaning and maintenance access
Evaluate safety, interfaces and lifecycle before placing an order.
The robot must exchange reliable signals with tooling, machines, conveyors, vision and safety devices. Product changeovers and fault recovery should be defined before the layout is frozen.
A useful comparison includes the whole cell, expected output, site work, documentation, training, support and future product range—not only arm specifications.
- Industrial robot or cobot architecture
- Safety concept and access strategy
- PLC, HMI and machine signals
- End-of-arm tooling and product presentation
- Changeover and recipe strategy
- Spares, training and support
Frequently asked questions
These answers provide an initial planning framework. Final requirements are confirmed against the product, process, site and applicable safety obligations.
How much payload margin should a robot have?
There is no universal percentage. The complete load, centre of gravity, wrist moments, acceleration and future product range should be checked against the manufacturer’s load diagrams and application requirements.
Is robot repeatability the same as accuracy?
No. Repeatability describes returning to a position consistently; absolute accuracy describes closeness to a commanded real-world position. Calibration or vision may be needed for some processes.
Can I choose a robot from reach and payload alone?
No. Those are initial filters. Motion path, wrist load, cycle, mounting, environment, safety, interfaces, tooling and maintenance access must also be validated.
Should I buy a bigger robot for future flexibility?
Only after assessing the trade-offs. A larger robot may increase footprint, mass, cost and safeguarding requirements. Future needs should be defined rather than assumed.
Continue planning your automation project
Use these pages to compare approaches, define the application and prepare the information needed for a useful feasibility review.
Complete robot cell integration
See how robot, tooling, controls, vision and safety are delivered as one system.
Read more →Robot selection matrix
Compare 20 reference robot and manipulator platforms.
Read more →Discuss your application
Turn the planning information into a project-specific feasibility review.
Read more →Robot gripper types
Select the product interface alongside the robot platform.
Explore →Robot cell layout design
Check work envelope, material flow and operator access.
Explore →Discuss the production task with an automation engineer.
Send the product details, required output, available space and a photo or short video of the current process. We will review the application and identify the next engineering step.