This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X80SFA, 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 SI32 Standard Air Cylinder SI32X80SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 80mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X80SFA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X80SFA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and FA flange mounting. It delivers 402 N push force at 0.5 MPa through a G1/8 port. The direct replacement is the SAI32X80SFA, matching the exact bore, stroke, force, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The original SI accepts legacy CS1-B/DS1-B sensors via its -S magnet, while the SAI uses current AirTAC switches.
| Model | Airtac SI32 Standard Air Cylinder SI32X80SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X80SFA |
| Bore size | Ø32 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32X80SFA 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32X80SFA 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). |
|---|---|
| 32 | Bore size in mm. |
| ×80 | 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).
Ideal for pushing lightweight machined components out of a fixture using the 402 N push force at 0.5 MPa.
The 80 mm stroke provides precise movement for sorting small boxes on a conveyor line without taking up excess space.
Suitable for operating secondary clamps on a welding jig where a 20 kg vertical lift capacity is sufficient.
To replace this SI32X80SFA, order the SAI32X80SFA keeping the 32 mm bore, 80 mm stroke, FA flange, G1/8 port, and -S magnet. If you need more force, the neighbouring 40 mm bore yields 628 N push at 0.5 MPa. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. The SAI family also adds the SAIF self-valve option.
Replacement checklist
Yes, the SI32X80SFA is discontinued. The direct replacement is the SAI32X80SFA. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 32 mm bore, 80 mm stroke, force, G1/8 port, and FA flange.
This double-acting cylinder uses a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and 724 N push at 0.9 MPa. The theoretical maximum force is 82 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X80SFA replacement — usually within 7-8 hours.