This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX15, 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 SI32AX15
The AirTAC SI32 Standard Air Cylinder SI32AX15 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 SAI32AX15, 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 → SAI32AX15
- 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 SI32AX15
The AirTAC SI32AX15 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 15mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX15, matching the exact interface, force, and mounting.
This SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. Note this nonstandard 15mm stroke lacks a magnet, so it cannot accept CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32AX15 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX15 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX15 |
| 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 SAI32AX15 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 SAI32AX15 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 SI32AX15
| 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 SI32AX15 Is Used
Small Part Clamping
Ideal for compact clamping tasks where a short 15mm stroke securely holds lightweight components during machining.
Ejector Mechanisms
Provides rapid ejection of small finished parts from automated fixtures using its 30-800mm/s speed range.
Gate Diverting
Suitable for actuating small diverter gates in packaging lines, offering 402N push force at 0.5MPa.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX15 with the SAI32AX15
To replace the SI32AX15, order the SAI32AX15. Confirm the ISO 15552 mounting interface, 32mm bore, nonstandard 15mm stroke, G1/8 port, and M10x1.25 rod thread. This SKU lacks a magnet (-S), so it cannot support position sensing; order an SAI32AX15S if switches are needed. The SAI family also adds SAIL, SAIF, and BSAI variants. For sizing, neighboring bores (e.g., 40mm) offer higher force (628N push at 0.5MPa), while the 32mm bore maxes at 82kgf at 1.0MPa. A plain cylinder does not hold load without live air; use a pilot check valve or SAIL lock variant for hold. The cushion only decelerates.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX15
- ✓ 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 SI32AX15 FAQ
Yes, the SI32AX15 is discontinued. The direct replacement is the SAI32AX15. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 15mm stroke, G1/8 port, and mounting interface.
This 32mm bore double-acting cylinder features 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.
Request a Quote for the SAI32AX15
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX15 replacement — usually within 7-8 hours.