This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the drop-in replacement SAI32BX380S, 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 Airtac SI32 Standard Air Cylinder SI32BX380S 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 drop-in replacement is the SAI32BX380S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32BX380S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 380mm stroke, SUS304 stainless rod, and piston magnet. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32BX380S.
The SAI drop-in uses an upgraded two Y-shaped piston seal for low start-up pressure. Safe working load is ~241N (60% of 402N) and vertical lift ~20kg. For load holding, use SAIL or BSAI lock variants, as cushions only decelerate.
| Model | Airtac SI32 Standard Air Cylinder SI32BX380S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32BX380S |
| 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 SAI32BX380S 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 SAI32BX380S produces the same force from the same bore — a true drop-in on output. 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).
The SUS304 rod option excels in washdown or mildly corrosive manufacturing cells requiring a 402N push force over a 380mm travel distance.
Providing a safe vertical lift capacity around 20kg with a 2:1 margin, this 32mm bore unit is sized for light package routing gates.
The non-locking 380mm stroke moves sample trays with 241N safe working load, requiring external guides to prevent side-load binding.
To replace the SI32BX380S with the SAI32BX380S, verify the ISO 15552 mounting interface, 380mm stroke, G1/8 port, and magnet for CS1-B/DS1-B switches. The SUS304 rod suits corrosive settings; Viton H seals allow 0-150C. At 380mm, use external guides to prevent rod bending. If 402N push at 0.5MPa is insufficient, step up to the 40mm bore (628N). For dead-load holding, select the SAIL lock or BSAI clamp-lock variant, as standard cushions only decelerate.
Replacement checklist
Yes, the SI32BX380S is discontinued. The exact drop-in replacement is the SAI32BX380S, which shares the same ISO 15552 mounting interface, 32mm bore, 380mm stroke, G1/8 port, and force ratings.
At 0.5MPa it provides 402N push and 345N pull. At 0.7MPa push is 563N, and at 0.9MPa it is 724N. The theoretical max force is 82kgf at 1.0MPa, with an operating speed of 30-800mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32BX380S replacement — usually within 7-8 hours.