This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX150SN, 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 SI32AX150SN
The AirTAC SI32 Standard Air Cylinder SI32AX150SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX150SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX150SN
- 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 SI32AX150SN
The AirTAC SI32AX150SN is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 150mm stroke. It delivers 402N push and 345N pull at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX150SN, retaining identical mounting, force, and stroke dimensions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This SI unit has a SUS420J2 stainless rod and NBR seals (-20 to +70C). It includes a piston magnet for CS1-B/DS1-B switches.
Airtac SI32 Standard Air Cylinder SI32AX150SN Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX150SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX150SN |
| Bore size | Ø32 mm |
| Stroke | 150 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 SAI32AX150SN 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 SAI32AX150SN 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 SI32AX150SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×150 | 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 SI32AX150SN Is Used
Small Part Ejection
Ideal for pushing lightweight machined components out of a fixture using its 402N push force at 0.5 MPa.
Clamp Actuation
Secures small workpieces during secondary machining operations, utilizing the 150 mm stroke to clear the work area.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX150SN with the SAI32AX150SN
To replace the SI32AX150SN, order the SAI32AX150SN. Confirm the ISO 15552 mounting interface, 32mm bore, 150mm stroke, G1/8 port (PT/G/NPT thread), and mounting accessory. The -S magnet enables current AirTAC switches, while the -A rod is SUS420J2 stainless and -N specifies NBR seals. For sizing, a 40mm bore yields 628N push at 0.5MPa if more force is needed; downsizing to 25mm is an option for lighter loads. Note that plain cylinders drift on air loss as cushions only decelerate; use an external rod lock, pilot check valve, or SAIL/BSAI lock variant for load holding. At 150mm stroke, side-load and rod-bending risks are minimal, but guide rails are recommended for off-center loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX150SN
- ✓ 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 SI32AX150SN FAQ
Yes, the AirTAC SI32AX150SN is discontinued. The direct replacement is the SAI32AX150SN. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 150mm stroke, 402N force, G1/8 port, and mounting interface.
This 32mm bore double-acting cylinder features a G1/8 air port and an M10x1.25 rod thread. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX150SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX150SN replacement — usually within 7-8 hours.