A series is a routing decision, not a product grade.
Fixed mount, rotary, spring, barrel, telescopic and body-following answers are not interchangeable tiers.
Six series, six boundaries
Series selection is a motion and protection decision. Fixed route, wrist rotation, long stroke, outer impact, compact storage and body-following geometry are different problems.
When a duty crosses two problems, combine systems instead of forcing one series to carry all of them. A rotary bracket at the wrist can coexist with a spring or barrel elsewhere in the same route.
The series boundary should be written into the review. If the answer depends on a combination, the assembly needs one envelope, one BOM and one service plan.
The short version.
- Series 1: fixed route.
- Series 2: wrist rotation.
- Series 3: long stroke.
- Series 4: outer impact.
- Series 5: compact storage.
- Series 6: body-following access.
Before this becomes a project.
Is a higher series always better?
No. The series number is not a quality tier. It identifies a different routing answer to a different motion or protection problem.
How do I know when to combine systems?
When the route has more than one dominant issue, such as rotation plus spatter or long stroke plus a tight envelope. The combination still needs a full assembly review.
Keep asking questions.
Bring the robot, the tool and the motion.
We will turn the note into the questions that actually block your drawing.