This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X223S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.

The AirTAC SI80 Standard Air Cylinder SI80X223S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 223mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X223S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X223S is a discontinued double-acting ISO 15552 profile cylinder featuring a 223 mm stroke and a 2513 N push force at 0.5 MPa. Because this specific stroke length is non-standard, buyers should verify availability or transition directly to the current production line. The direct replacement is the SAI80X223S, retaining the identical 80 mm bore, stroke, output force, G3/8 port, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade introduces an improved piston seal with two Y-shaped one-way elements for lower start-up pressure and extended life. Furthermore, the SAI family expands functionality with SAIL air-released lock, SAIF built-in valve, and BSAI clamp-lock variants that the legacy SI range lacked.
| Model | Airtac SI80 Standard Air Cylinder SI80X223S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X223S |
| Bore size | Ø80 mm |
| Stroke | 223 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80X223S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X223S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×223 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Applies the 2513 N push force at 0.5 MPa for seating bearings, stamping light sheet metal, or clinching components in automated fabrication cells.
Uses the 223 mm stroke to extend a 25 mm piston rod and push heavy product totes or pallets from a main handling line onto secondary packaging tracks.
To replace the discontinued SI80X223S, order the SAI80X223S and confirm the ISO 15552 mounting interface, bore, stroke, port (G3/8), thread (M20x1.5), and magnet (-S) match your fixture. The SAI accepts current AirTAC switches, replacing the legacy CS1-B/DS1-B sensors. When sizing, note that dropping to a 63 mm bore reduces push force to 1559 N at 0.5 MPa, while increasing to a 100 mm bore raises it to 3927 N. A plain cylinder drifts on air loss since the 36 mm adjustable air cushion only decelerates near stroke end; for load holding, specify an external pilot check valve or the SAIL/BSAI lock variant. Because the 223 mm stroke is non-standard, ensure the SAI equivalent can be manufactured to this exact length.
Replacement checklist
Yes, the AirTAC SI80X223S is discontinued. The direct replacement is the SAI80X223S. It features the same ISO 15552 mounting interface, 80 mm bore, 223 mm stroke, output force, G3/8 port, and mounting accessories, fitting directly into existing machinery.
The 80 mm bore cylinder has a G3/8 air port and an M20x1.5 rod thread. It delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa. At 0.7 MPa the push force is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X223S replacement — usually within 7-8 hours.