This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1360S, 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 SI80X1360S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1360mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1360S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X1360S is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel, a 1360 mm stroke, and a G3/8 port. Delivering 2513 N of push force at 0.5 MPa, it is replaced by the SAI80X1360S direct equivalent. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life, while keeping the exact bore, force, port, and ISO 15552 mounting interface.
Because of the 1360 mm stroke, external guides are recommended to prevent rod bending under side loads. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. A plain cylinder drifts on air loss, so use the SAIL lock or BSAI clamp-lock variant for load holding.
| Model | Airtac SI80 Standard Air Cylinder SI80X1360S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1360S |
| Bore size | Ø80 mm |
| Stroke | 1360 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 SAI80X1360S 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 SAI80X1360S 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. |
| ×1360 | 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 across wide conveyor lanes using the full 1360 mm travel, guided externally to prevent rod bending.
Ejects formed parts from heavy presses, relying on adjustable 36 mm air cushions to decelerate the 25 mm rod smoothly.
To replace the SI80X1360S, order the SAI80X1360S. Confirm the ISO 15552 mounting interface, the 80 mm bore, the 1360 mm stroke, the G3/8 port, and your mounting accessory (LB, FA, CA, TC). The -S magnet is retained. For sizing, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. This plain cylinder does not hold load without live air; the cushion only decelerates. For secure holding, specify the SAIL air-released lock, the BSAI clamp-lock, or an external pilot check valve. At 1360 mm, guide the load to avoid rod bending. The SAI family also offers the SAIF self-valve variant.
Replacement checklist
Yes, the SI80X1360S is discontinued. The direct replacement is the SAI80X1360S. It shares the same ISO 15552 mounting interface, 80 mm bore, 1360 mm stroke, output force, G3/8 port, and accessories, fitting existing fixtures perfectly.
It features 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, and a maximum theoretical force of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1360S replacement — usually within 7-8 hours.