This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X15S, 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.
Airtac SI32 Standard Air Cylinder SI32X15S
The AirTAC SI32 Standard Air Cylinder SI32X15S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 15mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X15S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke15 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X15S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32X15S
The AirTAC SI32X15S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 15 mm stroke, delivering 402 N push force at 0.5 MPa. AirTAC replaced it with the SAI32X15S, a direct sharing the same interface, G1/8 port, and M10x1.25 rod thread.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SI -S magnet works with CS1-B/DS1-B switches, while the SAI family adds SAIL lock, SAIF valve, and BSAI clamp-lock variants.
Airtac SI32 Standard Air Cylinder SI32X15S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X15S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X15S |
| Bore size | Ø32 mm |
| Stroke | 15 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 SAI32X15S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32X15S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32X15S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×15 | 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).
Where the Airtac SI32 Standard Air Cylinder SI32X15S Is Used
Short Stroke Ejection
Pushes finished small parts out of machining fixtures using a fast 15 mm stroke and 402 N force.
Diverting Mechanisms
Actuates lightweight sorting gates on conveyor lines where a 20 kg vertical lift margin is sufficient.
Replacing the Airtac SI32 Standard Air Cylinder SI32X15S with the SAI32X15S
To replace this SI32X15S, order the SAI32X15S and confirm the ISO 15552 mounting interface, 15 mm stroke, G1/8 port, and -S magnet for CS1-B/DS1-B sensors. For higher force, the neighbouring 40 mm bore provides 628 N push at 0.5 MPa. Note that a plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant. The 15 mm stroke avoids side-load rod-bending risks seen in longer strokes.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X15S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32X15S FAQ
Yes, the SI32X15S is discontinued. The direct replacement is the SAI32X15S, which shares the same ISO 15552 mounting interface, 32 mm bore, 15 mm stroke, output force, G1/8 port, and accessories.
The 32 mm bore features a G1/8 port and delivers 402 N push / 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa.
Request a Quote for the SAI32X15S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X15S replacement — usually within 7-8 hours.