This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX15S, 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 SI32AX15S
The AirTAC SI32 Standard Air Cylinder SI32AX15S 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 SAI32AX15S, 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 → SAI32AX15S
- 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 SI32AX15S
The AirTAC SI32AX15S is a discontinued double-acting ISO 15552 profile cylinder featuring a 32mm bore, 15mm stroke, and a SUS420J2 stainless steel rod. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX15S, which matches the original mounting interface, bore, stroke, force, and port size. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life.
The -S magnet on this legacy unit supports CS1-B/DS1-B sensors, while the modern SAI family uses current AirTAC switches. Additionally, the SAI line adds SAIL, SAIF, and BSAI lock or valve variants that the SI series lacked.
Airtac SI32 Standard Air Cylinder SI32AX15S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX15S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX15S |
| 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 SAI32AX15S 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 SAI32AX15S 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 SI32AX15S
| 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 SI32AX15S Is Used
Short-Stroke Clamping
Ideal for compact 32mm bore clamping fixtures where a 15mm stroke secures small machined components without occupying excessive workspace.
Stainless Rod Ejection
The SUS420J2 stainless rod option suits light-duty part ejection in humid or mildly corrosive environments requiring a non-standard 15mm movement.
Sensor-Ready Sorting
Equipped with a piston magnet for CS1-B/DS1-B switches, providing reliable position feedback for small diverter gates in sorting lines.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX15S with the SAI32AX15S
To replace the discontinued SI32AX15S, order the SAI32AX15S. It is a direct per the ISO 15552 mounting interface, keeping the 32mm bore, 15mm stroke, G1/8 port, and M10x1.25 rod thread. Because this 15mm stroke is nonstandard (below the typical 25mm minimum), verify the exact cushion and end-cap dimensions if spacing is tight. The -A designation indicates a SUS420J2 stainless rod for corrosion resistance, and the -S indicates a piston magnet for position sensing. If you need to upsize, a 40mm bore offers 628N push at 0.5MPa; downsizing is not available below 32mm. For load holding on air loss, note that a plain cylinder drifts and the air cushion only decelerates near stroke end—use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX15S
- ✓ 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 SI32AX15S FAQ
Yes, the AirTAC SI32AX15S is discontinued. The direct replacement is the SAI32AX15S. It is dimensionally interchangeable per the ISO 15552 mounting interface, maintaining the same 32mm bore, 15mm stroke, G1/8 port, and output force for existing fixtures.
The 32mm bore uses a G1/8 air port. At 0.5MPa it provides 402N push and 345N pull force. At 0.7MPa push is 563N, and at 0.9MPa push is 724N. The theoretical maximum force is 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX15S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX15S replacement — usually within 7-8 hours.