This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X60S, 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 SI80X60S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X60S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X60S is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 60 mm stroke. Delivering 2513 N push force at 0.5 MPa through a G3/8 port, it is directly replaced by the SAI80X60S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories, fitting existing fixtures perfectly.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI80X60S includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family introduces SAIL, SAIF and BSAI lock variants the SI lacked.
| Model | Airtac SI80 Standard Air Cylinder SI80X60S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X60S |
| Bore size | Ø80 mm |
| Stroke | 60 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 SAI80X60S 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 SAI80X60S 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. |
| ×60 | 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 medium-tonnage press fit tasks for bearings or pins, utilizing the 2513 N push force at 0.5 MPa to seat components reliably.
Actuates heavy-duty diverter arms on packaging lines, where the 128 kg vertical lift capacity and 60 mm stroke move dense goods efficiently.
Functions as a robust pneumatic stop for loaded pallets on roller conveyors, absorbing kinetic energy via the adjustable 36 mm air cushions.
To replace the discontinued SI80X60S, order the SAI80X60S. Confirm the ISO 15552 mounting interface, 80 mm bore, 60 mm stroke, G3/8 port (PT/G/NPT thread options) and your specific mounting accessory (LB, FA, CA, TC). The -S suffix indicates a piston magnet for CS1-B/DS1-B sensors; the SAI replacement uses current AirTAC switches. Sizing both ways: a neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. Note that a plain cylinder drifts on air loss as the cushion only decelerates; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI80X60S is discontinued. The direct replacement is the SAI80X60S. It shares the same ISO 15552 mounting interface, 80 mm bore, 60 mm stroke, output force, G3/8 port and mounting accessories, fitting existing fixtures perfectly.
The 80 mm bore uses a G3/8 air port. Force ratings are: 2513 N push and 2268 N pull at 0.5 MPa; 3518 N push at 0.7 MPa; 4523 N push at 0.9 MPa; with a theoretical max of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X60S replacement — usually within 7-8 hours.