This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX325, 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 SI32AX325
The AirTAC SI32 Standard Air Cylinder SI32AX325 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 325mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX325, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke325 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX325
- 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 SI32AX325
The AirTAC SI32AX325 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 325mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX325, matching the interface, force, and stroke exactly.
This SKU lacks a magnet (-S) and cannot accept a sensor. It features a SUS420J2 stainless rod (-A) and an upgraded SAI piston seal with two Y-shaped elements for low start-up pressure.
Airtac SI32 Standard Air Cylinder SI32AX325 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX325 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX325 |
| Bore size | Ø32 mm |
| Stroke | 325 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 SAI32AX325 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 SAI32AX325 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 SI32AX325
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×325 | 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 SI32AX325 Is Used
Compact Part Ejection
Uses the 402N push force at 0.5MPa to eject small machined components from a fixture over the 325mm travel distance.
Light Transfer Routing
Actuates a lightweight diverter arm to route small packages on a conveyor line, safely operating within the 241N working load limit.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX325 with the SAI32AX325
To replace the SI32AX325, order the SAI32AX325. Confirm the ISO 15552 mounting interface, 32mm bore, 325mm stroke, G1/8 port (PT/G/NPT), and your specific mounting accessory. Because this SKU has no -S magnet, it cannot use CS1-B/DS1-B sensors. If sizing up, a 40mm bore yields 628N push at 0.5MPa; sizing down is not an option. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding (or specify an SAIL/BSAI lock variant). With a 325mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX325
- ✓ 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 SI32AX325 FAQ
Yes, the SI32AX325 is discontinued. The direct replacement is the SAI32AX325. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 325mm stroke, G1/8 port, and mounting interface, but adds an upgraded two Y-shaped element piston seal.
The 32mm bore uses a G1/8 port. At 0.5MPa it provides 402N push and 345N pull force. At 0.7MPa push is 563N, and 724N at 0.9MPa. The theoretical maximum force is 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX325
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX325 replacement — usually within 7-8 hours.