Airtac SILF Front Locking Air Cylinder SILF160X225

The SILF160X225 order code specifies a Dia 160 mm double-acting end-lock cylinder with a 225 mm stroke on the basic body, and the F places the mechanical lock in the front (rod-end) cover. While the lock-side port is exhausted the piston is held at that end of the stroke, so a lost air supply does not let the load drop; air on that port releases the lock automatically, and a hand lever releases it manually. AirTAC has discontinued the SILF/SILB series, so this code ships as SAILF160X225, the same code under the current SAILF prefix, and every figure here describes the unit you receive.

This version carries no S magnet, so piston-position sensing is not built in. It has 3/4 inch PT ports, an M36x2 rod thread on the Dia 40 mm rod and adjustable air cushions on both ends. Theoretical output at 0.5 MPa is 10053 N push and 9425 N pull, rising to 14074 N and 13195 N at 0.7 MPa; usable force is lower once friction and back-pressure are counted. It runs on air filtered to 40 um at 0.15 to 1.0 MPa (proof 1.5 MPa) from -20 to +70 C at 30 to 500 mm/s.

Basic mounting is the key difference of this code: it uses the cylinder's own mounting holes instead of the FA front flange, TC center trunnion or FTC front trunnion options, so you supply the bracketry that keeps the 3/4 inch ports and M36x2 rod thread aligned with a straight-line load. The F in the code fixes the lock at the front cover; if the load must be held at the rear cover instead, the sibling is a SILB code, and adding G switches the ports from PT to G (BSPP). Because this code has no S, reorder with the S option if you later need a magnet for position sensors. A 225 mm stroke adds length and air consumption over shorter codes without adding force, since output depends only on the 160 mm bore and supply pressure.