This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X25SFA, 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 SI32X25SFA
The AirTAC SI32 Standard Air Cylinder SI32X25SFA 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 SAI32X25SFA, 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 → SAI32X25SFA
- 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 SI32X25SFA
The AirTAC SI32X25SFA 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 direct replacement SAI32X25SFA, which shares the exact FA flange mounting and interface. The SAI upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life.
This -S SKU includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI replacement uses current AirTAC switches. Note that a plain cylinder drifts on air loss; use a pilot check valve or SAIL lock variant to hold loads.
Airtac SI32 Standard Air Cylinder SI32X25SFA Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X25SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X25SFA |
| 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 SAI32X25SFA 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 SAI32X25SFA 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 SI32X25SFA
| 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 SI32X25SFA Is Used
Small Part Ejection
Ideal for pushing lightweight components out of machining centers using its 241N safe working force over a short 25mm travel.
Clamp Actuation
Provides reliable clamping pressure for small fixtures, utilizing the FA flange mount for secure ISO 15552 integration.
Gate Diverting
Suitable for driving small pneumatic diverter gates in packaging lines where a 20kg vertical lift capacity is sufficient.
Replacing the Airtac SI32 Standard Air Cylinder SI32X25SFA with the SAI32X25SFA
To replace the SI32X25SFA, order the SAI32X25SFA. Verify the ISO 15552 interface, 32mm bore, 25mm stroke, G1/8 port, and FA flange mount. The -S magnet is retained, though you will need current AirTAC switches instead of the legacy CS1-B/DS1-B. If you need more force than the 563N push at 0.7MPa, step up to a 40mm bore (628N at 0.5MPa); if less is required, a smaller profile cylinder is needed. Remember that standard cylinders do not hold load without live air—add an external rod lock or pilot check valve, or specify a SAIL or BSAI lock variant for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X25SFA
- ✓ 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 SI32X25SFA FAQ
Yes, the SI32X25SFA is discontinued. The direct replacement is the SAI32X25SFA. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 25mm stroke, G1/8 port, and FA mounting interface.
This double-acting cylinder features a G1/8 port and delivers a push force of 402N and pull of 345N at 0.5MPa, 563N push at 0.7MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X25SFA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X25SFA replacement — usually within 7-8 hours.