This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X193SN, 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 SI80X193SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 193mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X193SN, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X193SN is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, adjustable air cushions, and a built-in magnet. Delivering 2513 N push and 2268 N pull at 0.5 MPa through its G3/8 port, it is replaced by the SAI80X193SN. This direct successor matches the 80 mm bore, 193 mm stroke, output force, and mounting interface exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The original SI line lacked the SAIL air-released lock, SAIF built-in valve, and BSAI clamp-lock variants now available. This -SN configuration uses an NBR seal (-20 to +70 C) and legacy CS1-B/DS1-B sensors.
| Model | Airtac SI80 Standard Air Cylinder SI80X193SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X193SN |
| Bore size | Ø80 mm |
| Stroke | 193 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 SAI80X193SN 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 SAI80X193SN 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. |
| ×193 | 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).
Drives bearings or pins into housings, utilizing the 2513 N push force at 0.5 MPa to seat components reliably without overstressing the assembly tooling.
Actuates routing gates or pop-up stops on a packaging line, where the 193 mm stroke provides sufficient travel to clear pallet traffic safely.
Folds heavy corrugated carton lids during case packing, using the 2268 N pull force to overcome hinge resistance and secure the flaps for tape sealing.
To replace the SI80X193SN, order the SAI80X193SN. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 193 mm stroke, 2513 N force, G3/8 port, and mounting fixtures. Retain the -S magnet for position sensing, noting the SAI family uses current AirTAC switches rather than the legacy CS1-B/DS1-B set. The -N NBR seal suits standard -20 to +70 C environments; a Viton H option extends this to 150 C. For sizing, the 80 mm bore yields 2513 N push at 0.5 MPa; dropping to a 63 mm bore reduces this to 1559 N, while an 80 mm bore at 0.7 MPa provides 3518 N. Remember that a standard cylinder drifts on air loss because the cushion only decelerates; for load holding, specify the SAIL lock, BSAI clamp-lock, or an external pilot check valve. The 193 mm stroke is under the 300 mm threshold, so rod-bending side-load risks are minimal.
Replacement checklist
Yes, the SI80X193SN is discontinued. The direct replacement is the AirTAC SAI80X193SN. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 193 mm stroke, G3/8 port, and mounting interface, so it fits existing fixtures perfectly.
The bore is 80 mm with a G3/8 air port. At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. 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 SAI80X193SN replacement — usually within 7-8 hours.