BUYER GUIDE

Collaborative Robots by Payload: Cobot Selection Guide

Payload is a useful first filter for a collaborative robot, but the nameplate figure is not the same as the usable workpiece mass. The complete tool, adapter, cables and workpiece all contribute to payload, while their combined center of gravity and inertia affect acceleration and the robot's capacity across its working envelope. A defensible shortlist therefore starts with the actual task, not a nominal payload class. Use the criteria below to give suppliers one common operating case. Ask each supplier to confirm the permitted payload and motion for that case, identify any derating, and return the matching robot, controller and software configuration as one proposal.

How to shortlist

Total moving load

Add the workpiece, gripper, adapter plate, wrist sensor, dress pack and any carried process equipment. State normal and worst-case load rather than rounding down to the workpiece alone.

Center of gravity and inertia

Provide the three-axis center-of-gravity offset and, where available, the load inertia. A long or asymmetric tool can be limiting even when its mass is below the headline payload.

Reach and usable workspace

Check the full path, approach angles, wrist orientation and clearance around fixtures. Compare the task envelope rather than choosing solely by maximum reach.

Cycle and motion profile

Specify travel distances, target cycle time, acceleration constraints, dwell time and expected duty cycle so the supplier can assess dynamic performance and thermal loading.

Process accuracy

Separate repeatability from absolute path or positioning accuracy. State whether the task is pick-and-place, dispensing, welding, polishing, assembly or inspection and define the process tolerance.

Application safety

Treat collaborative operation as an application-level risk assessment. Record possible contact, tooling hazards, workpiece edges, speed and separation requirements, scanners, guarding and the destination country's applicable standards.

Environment and mounting

Confirm floor, wall, ceiling or mobile-base mounting, available base stiffness, temperature, dust, liquids, cleanroom needs and any washdown or corrosion exposure.

Controls and ecosystem

Compare fieldbus support, tool I/O, programming method, offline simulation, force-control options, vision and gripper integrations, SDK access, backups and spare-controller support.

Matching catalog models

39 models

RealManECO65-B

5 kg610 mm6

Inquiry

Model	Payload	Reach	Repeatability		Robot weight	IP rating	Max speed		Quote
RealManECO65-B	5 kg^†	610 mm^†	±0.05 mm^†	6^†	7.8 kg^†	—	≤1.8 m/s^†	Inquiry	Quote
RealManRM75-B	5 kg^†	610 mm^†	±0.05 mm^†	7^†	7.8 kg^†	—	≤1.8 m/s^†	Inquiry	Quote
RealManRM65-6F	5 kg^†	627 mm^†	±0.05 mm^†	6^†	7.3 kg^†	—	≤1.8 m/s^†	Inquiry	Quote
FAIRINOFR5	5 kg (max 7 kg)^†	922 mm^†	±0.02 mm^†	6^†	22 kg^†	IP54 (IP65 optional)^†	—	5595-5595	Quote
Agile RobotsDiana 7	7 kg^†	923 mm^†	±0.05 mm^†	7^†	26 kg^†	IP54^†	—	Inquiry	Quote
ROKAExMate CR35	35 kg^†	2246 mm^†	±0.05 mm^†	6^†	165 kg^†	IP54^†	—	Inquiry	Quote
ROKAExMate CR20	20 kg^†	1798 mm^†	±0.05 mm^†	6^†	71 kg^†	IP67^†	3.5 m/s^†	Inquiry	Quote
ROKAExMate CR18	18 kg^†	1062 mm^†	±0.03 mm^†	6^†	38 kg^†	IP67^†	3.0 m/s^†	Inquiry	Quote
ROKAExMate CR12	12 kg^†	1434 mm^†	±0.03 mm^†	6^†	41 kg^†	IP67^†	3.0 m/s^†	Inquiry	Quote
ROKAExMate CR7	7 kg^†	988 mm^†	±0.02 mm^†	6^†	25 kg^†	IP67^†	3.2 m/s^†	Inquiry	Quote
FlexivRizon 10	10 kg^†	810 mm^†	±0.1 mm^†	6^†	33 kg^†	IP65^†	—	Inquiry	Quote
HAN'S ROBOTE5	5 kg^†	800 mm^†	±0.02 mm^†	6^†	25 kg^†	IP54 (IP66 optional)^†	3.0 m/s^†	Inquiry	Quote