This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX120S, 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 SI32AX120S
The AirTAC SI32 Standard Air Cylinder SI32AX120S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 120mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX120S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX120S
- 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 SI32AX120S
The AirTAC SI32AX120S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 120 mm stroke. It delivers 402 N push force at 0.5 MPa, features a G1/8 port, and includes a SUS420J2 stainless steel rod. The direct replacement is the SAI32AX120S, which matches the original ISO 15552 mounting interface, bore, stroke, output force, and port size exactly.
The SAI upgrade introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For applications needing load holding on air loss, the SAI family adds SAIL and BSAI lock variants the SI lacked. This -S model has a piston magnet for CS1-B/DS1-B switches.
Airtac SI32 Standard Air Cylinder SI32AX120S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX120S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX120S |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAI32AX120S 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 SAI32AX120S 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 SI32AX120S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SI32AX120S Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably push lightweight finished parts out of a machining center.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX120S with the SAI32AX120S
To replace the SI32AX120S, order the SAI32AX120S. Confirm the ISO 15552 mounting interface, 120 mm stroke, G1/8 port, and your mounting accessory (LB, FA, TC, etc.). The -S suffix means a magnet is present for CS1-B/DS1-B sensors. If you need more force, the neighboring 40 mm bore provides 628 N push at 0.5 MPa; if less is acceptable, check smaller non-ISO options. Remember that a plain cylinder does not hold load without live air—the cushion only decelerates. For secure holding, use an external pilot check valve or explore the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX120S
- ✓ 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 SI32AX120S FAQ
Yes, the SI32AX120S is discontinued. The direct replacement is the AirTAC SAI32AX120S. It shares the same ISO 15552 mounting interface, 32 mm bore, 120 mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly.
This double-acting cylinder has a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX120S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX120S replacement — usually within 7-8 hours.