Where the 1FK70345AF211UA3 sits on a line
The 1FK70345AF211UA3 from the Siemens 1FK7 series is a three-phase synchronous servo motor rated 1.6 Nm continuous torque and 0.63 kW at 3000 rpm — the compact frame used in feed axes, packaging heads, and small-format index tables where a brushless servo replaces a stepper or induction drive for closed-loop positioning.
Lifecycle reading — eol_hot on the record
The lifecycle flag carried against this MPN reads eol_hot, meaning the 1FK70345AF211UA3 is no longer in normal distribution through the manufacturer's main channel — supply runs through independent stock and broker lots, with each piece's date code and provenance verified at RFQ rather than off-the-shelf ordering. Buyers carrying a spare for a running line should treat this as a stock-out part: cross out the OEM-channel refresh and route through a specialist who can name the warehouse, the lot, and the inspection report per unit — for an audit trail that survives a tender challenge.
Mechanical envelope on the shop floor
Because the motor is part of a synchronous servo pair — drive electronics, encoder cable, and resolver or absolute-encoder feedback — the swap should be staged so the replacement unit's encoder option matches the drive's firmware expectation; a mismatched feedback type is the most common line-stop cause on this frame.