This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1016S, 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 SI80X1016S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1016mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1016S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X1016S is a discontinued double-acting ISO 15552 profile cylinder with a 1016 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X1016S, matching the bore, stroke, force, and mounting interface exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The SI -S magnet pairs with CS1-B/DS1-B sensors, while SAIL/BSAI lock variants the SI lacked are now available.
| Model | Airtac SI80 Standard Air Cylinder SI80X1016S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1016S |
| Bore size | Ø80 mm |
| Stroke | 1016 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 SAI80X1016S 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 SAI80X1016S 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. |
| ×1016 | 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 sideways across transfer lines using its 1016 mm reach and 2513 N force at 0.5 MPa.
Cycles molded parts out of heavy machinery, relying on the 36 mm adjustable air cushions to decelerate.
To replace the SI80X1016S, order the SAI80X1016S direct: it shares the ISO 15552 mounting interface, 80 mm bore, 1016 mm stroke, G3/8 port (PT/G/NPT), M20x1.5 rod thread, and -S magnet. At 0.5 MPa it yields 2513 N push; neighbouring bores offer 63 mm (1559 N) or 100 mm (3927 N). Because a plain cylinder drifts on air loss, use an external rod lock or pilot check valve for load holding, or specify the SAIL/BSAI lock variant. For 1016 mm strokes, use external guides to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SI80X1016S is discontinued. The direct replacement is the SAI80X1016S. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 1016 mm stroke, G3/8 port, and mounting fixtures.
It has a G3/8 port and provides 2513 N push / 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa. The SAI replacement adds a two Y-shaped one-way piston seal for lower start-up pressure.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1016S replacement — usually within 7-8 hours.