This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X60SFA, 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 SI80X60SFA 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 SAI80X60SFA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X60SFA is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 60mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this EOL unit with the SAI80X60SFA, a direct sharing the exact FA flange mount, M20x1.5 rod thread, and dimensions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The family adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
| Model | Airtac SI80 Standard Air Cylinder SI80X60SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X60SFA |
| 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 SAI80X60SFA 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 SAI80X60SFA 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).
Provides 2513 N of push force at 0.5 MPa to secure heavy workpieces in machining fixtures.
Drives robust routing gates on high-throughput material handling lines with a 60mm stroke.
Halts loaded pallets at inspection stations using the 80mm bore's 128 kg safe vertical lift capacity.
To replace the SI80X60SFA, order the SAI80X60SFA. Verify the ISO 15552 FA flange interface, 80mm bore, 60mm stroke, G3/8 port, and -S magnet. If you need less force, the 63mm bore yields 1559 N push at 0.5 MPa; for more power, the 100mm bore gives 3927 N. A plain cylinder drifts without live air, so for load holding use an external pilot check valve or the SAIL/BSAI lock variant. The 60mm stroke avoids rod-bending side-load risks seen in long strokes. Choose Viton H seals for high temp.
Replacement checklist
Yes, the SI80X60SFA is discontinued. The direct replacement is the SAI80X60SFA. It shares the same ISO 15552 mounting interface, 80mm bore, 60mm stroke, G3/8 port, and output force, fitting existing fixtures perfectly.
The 80mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical max of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s. It uses a G3/8 port and a 25mm rod.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X60SFA replacement — usually within 7-8 hours.