Industrial robots are repeatable long before they are accurate. A robot will return to a taught point reliably, but a position calculated from a CAD model — which is exactly how a SINUMERIK-controlled robot is programmed — lands off by the accumulated geometric error of the arm. Calibration is what closes that gap.

• Machining and trimming — part accuracy comes from the programmed path, not from a taught point, so kinematic error shows up directly in the workpiece.
• Offline programming — posted programs run without re-teaching only if the real kinematic matches the model.
• Robot replacement — a calibrated cell takes a replacement arm without reworking the program.
• External axes — rails and positioners are aligned into the same kinematic model rather than treated as separate frames.
• Drift and collisions — recalibration restores accuracy in-house instead of scheduling a service visit.

Applied in aerospace, automotive, power generation, machine building and semiconductor manufacturing, where scrap cost justifies holding tight absolute accuracy.

iSiOS is an offering of iSiOS GmbH, sold through the Siemens Xcelerator Marketplace rather than as a Siemens catalogue material number, and is scoped per project — robot type, cell layout and the accuracy target all affect it. Quoted here as an option alongside the Run MyRobot cabinets; the price shown is indicative until the cell is scoped.