This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX25SN, 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 SI32AX25SN
The AirTAC SI32 Standard Air Cylinder SI32AX25SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 25mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX25SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke25 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX25SN
- 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 SI32AX25SN
The AirTAC SI32AX25SN is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 25mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32AX25SN. This direct successor shares identical ISO 15552 mounting, stroke, and force specs.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants absent from the SI line. This unit includes a SUS420J2 stainless rod, NBR seals, and a magnet for CS1-B/DS1-B switches.
Airtac SI32 Standard Air Cylinder SI32AX25SN Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX25SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX25SN |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAI32AX25SN 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 SAI32AX25SN 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 SI32AX25SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 SI32AX25SN Is Used
Small Part Clamping
Ideal for securing delicate electronic components or small machined parts during light assembly, utilizing the 402N push force without causing surface damage.
Ejector Mechanisms
Perfectly suited for short 25mm stroke ejection tasks in automated machinery, quickly pushing finished lightweight products out of a fixture.
Diverting Gates
Drives compact pneumatic diverter gates on conveyor lines, where the SUS420J2 stainless rod provides necessary corrosion resistance in humid environments.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX25SN with the SAI32AX25SN
To replace the SI32AX25SN, order the SAI32AX25SN. Confirm the ISO 15552 mounting interface, G1/8 port, M10x1.25 rod thread, NBR seals, and the -S magnet for current AirTAC switches. This 32mm bore outputs 402N push at 0.5MPa; if undersized, the 40mm bore yields 628N. For load holding, note that a standard cylinder drifts on air loss—the cushion only decelerates. Use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The 25mm stroke is short, minimizing rod-bending side-load risks.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX25SN
- ✓ 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 SI32AX25SN FAQ
Yes, the SI32AX25SN is discontinued. The direct replacement is the SAI32AX25SN. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 25mm stroke, force, G1/8 port, and mounting interface.
This double-acting 32mm bore cylinder features a G1/8 air port. It delivers a push force of 402N and a pull force of 345N at 0.5 MPa. At 0.7 MPa push is 563N, at 0.9 MPa push is 724N, and the theoretical maximum force is 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX25SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX25SN replacement — usually within 7-8 hours.