Sizing the S-1FK2 on a SINAMICS S210 line
The 1FK2104-4AK00-0MA0 sits in the SIMOTICS S-1FK2 HD family, built as the low-inertia servomotor that pairs with the SINAMICS S210 drive on a single-cable OCC link. It is the frame the integrator picks when the machine needs a compact high-dynamic axis — packaging, small gantry, indexing table — rather than a constant-torque roll. Stall torque M0 = 1.27 Nm sets the continuous load ceiling before pull-out, while the two rated points tell the real sizing story: 0.6 kW at 6000 rpm on a 380–480 V bus and 0.4 kW at 3000 rpm on 200–240 V. Picking the 230 V versus 400 V tap drives the mechanical output envelope; commissioning has to confirm the drive firmware profile matches the bus the panel actually feeds.
Mechanical package and feedback for panel-side integration
The shaft is a plain cylindrical D19 × 40 mm stub — no key, no tight tolerance fit, so the coupling choice (clamp or locking-element) sets the balance grade and the torsion stiffness of the joint. IP64 on the body holds against splash and dust ingress but does not survive washdown; for food-and-bev or outdoor skids the spec ceiling moves, and the enclosure becomes the seal. Feedback is the AM22DQC, a 22-bit single-turn + 12-bit multi-turn absolute encoder wired through the OCC interface on a rotatable M17 plug. The rotatable connector is the small win that saves an hour on the build — cable egress can be clocked to the cabinet geometry without a right-angle adapter or a cable re-route.
Production status and compliance paperwork
Compliance: RoHS conformity since 01-07-06 is on the data record, and the seller carries the REACH Article 33 candidate-list disclosure obligation. The motor is export-controlled under AL:N / ECCN:N_CNDU — a clean classification that does not trigger an export licence for the standard cross-border shipment.
Procurement line metadata for the BOM clerk
Orderable as 1 Piece under product class C — manufactured to order with no return-for-credit, so a wrong BOM line cannot be reversed as stock. Group code R220 / product group 9021 are the SAP keys the buyer's ERP needs for the requisition. Ships in a single-pack at 452.00 x 250.00 x 267.00 mm — plan the receiving bench and the cabinet cut-out before the box arrives, because the motor itself is short but the OEM packaging is the long pole on the loading dock.