This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X223SN, 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 SI80X223SN 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 SAI80X223SN, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X223SN is a discontinued double-acting ISO 15552 profile cylinder with a 223 mm stroke. Generating 2513 N push and 2268 N pull at 0.5 MPa, it features a 25 mm rod, M20x1.5 thread, and a G3/8 port. The direct replacement is the SAI80X223SN, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. This 223 mm unit is a nonstandard stroke; ensure your guide handles side loads.
| Model | Airtac SI80 Standard Air Cylinder SI80X223SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X223SN |
| 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 SAI80X223SN 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 SAI80X223SN 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).
Pushes heavy pallets onto secondary packaging lines using the 2513 N thrust at 0.5 MPa, absorbing end-of-stroke impact via the 36 mm adjustable air cushion.
Ejects formed metal components from a press bed, utilising the 4523 N output at 0.9 MPa and the robust 25 mm carbon steel piston rod.
To replace the SI80X223SN, order the SAI80X223SN direct, verifying the ISO 15552 mounting interface, 80 mm bore, 223 mm stroke, G3/8 port, and magnet. The NBR seal suits -20 to +70 C; choose Viton H for up to 150 C. Neighbouring bores are 63 mm (1559 N @0.5 MPa) or 100 mm (3927 N). Since 223 mm exceeds the 1500 mm max standard stroke, it is nonstandard. For stroke lengths over 300 mm, prevent rod bending by adding external guide rails to absorb side loads. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI80X223SN is discontinued. The direct replacement is the SAI80X223SN. It features the same ISO 15552 mounting interface, 80 mm bore, 223 mm stroke, 513 kgf max force, and G3/8 port, fitting existing fixtures perfectly.
This double-acting cylinder has a G3/8 port and generates 2513 N push / 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N push at 0.9 MPa. The theoretical max force is 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X223SN replacement — usually within 7-8 hours.