This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X380S, 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 SI32X380S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 380mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X380S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X380S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 380mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X380S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting accessories.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SI -S magnet works with legacy CS1-B/DS1-B sensors, while SAIL/BSAI lock variants cover load holding.
| Model | Airtac SI32 Standard Air Cylinder SI32X380S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X380S |
| Bore size | Ø32 mm |
| Stroke | 380 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 SAI32X380S 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 SAI32X380S 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. |
| ×380 | 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).
Uses the 402N push force at 0.5MPa to eject small machined components from a fixture, fitting neatly into tight machinery envelopes.
Extends 380mm to push light cartons between conveyor lanes, benefiting from the 30-800mm/s speed range for rapid cycling.
To replace the SI32X380S with the SAI32X380S, verify the ISO 15552 interface, 32mm bore, 380mm stroke, G1/8 port (PT/G/NPT) and mounting accessory. The -S magnet enables CS1-B/DS1-B switches (SAI uses current AirTAC switches). If sizing up, a 40mm bore yields 628N push at 0.5MPa; if sizing down, custom options apply. At 380mm stroke, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss—the cushion only decelerates. For held loads, use an external rod lock, pilot check valve, or SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI32X380S is discontinued. The direct replacement is the SAI32X380S. It shares the same ISO 15552 mounting interface, 32mm bore, 380mm stroke, output force, G1/8 port and accessories, fitting existing fixtures perfectly.
This double-acting cylinder uses a G1/8 port. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical maximum of 82kgf at 1.0MPa. The 380mm stroke requires external guides to prevent rod bending.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X380S replacement — usually within 7-8 hours.