This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X80S, 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 SI32X80S 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 SAI32X80S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X80S is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and 32 mm bore, delivering 402 N push force at 0.5 MPa. It features a G1/8 port, M10x1.25 rod thread, and a magnetic piston for CS1-B/DS1-B switches. AirTAC replaced this EOL unit with the SAI32X80S, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI32X80S upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life, while retaining the 27 mm adjustable air cushions. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line.
| Model | Airtac SI32 Standard Air Cylinder SI32X80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X80S |
| 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 SAI32X80S 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 SAI32X80S 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 finished components out of a machining center using the 402 N push force at 0.5 MPa.
Secures small workpieces in automated jig fixtures where the 345 N pull force and 80 mm stroke provide precise actuation.
Powers low-profile diverter arms on conveyor lines, utilizing the 30-800 mm/s speed range and magnetic piston for position confirmation.
To replace the SI32X80S, order the SAI32X80S keeping the identical 32 mm bore, 80 mm stroke, G1/8 port, M10x1.25 thread, and -S magnet for current AirTAC switches. Confirm your ISO 15552 mounting accessory (LB, FA, TC) matches. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding use an external pilot check valve or the SAIL/BSAI lock variant. If you need more force, the 40 mm bore yields 628 N push at 0.5 MPa; if less is acceptable, check smaller options. For any stroke over 300 mm, add external guides to prevent rod bending.
Replacement checklist
Yes, the AirTAC SI32X80S is discontinued and end-of-life. The direct replacement is the SAI32X80S. It shares the identical ISO 15552 mounting interface, 32 mm bore, 80 mm stroke, output force, and G1/8 port, fitting directly into your existing fixtures.
The 32 mm bore has a G1/8 port. Force ratings are 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical maximum of 82 kgf at 1.0 MPa. The magnetic piston works with CS1-B/DS1-B switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X80S replacement — usually within 7-8 hours.