This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX750S, 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 SI32AX750S
The AirTAC SI32 Standard Air Cylinder SI32AX750S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 750mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX750S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke750 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX750S
- 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 SI32AX750S
The AirTAC SI32AX750S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 750mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is directly replaced by the SAI32AX750S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This -A variant uses a SUS420J2 stainless rod, and the -S magnet works with CS1-B/DS1-B sensors. The SAI family adds SAIL, SAIF and BSAI lock variants the SI lacked.
Airtac SI32 Standard Air Cylinder SI32AX750S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX750S |
| Bore size | Ø32 mm |
| Stroke | 750 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 SAI32AX750S 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 SAI32AX750S 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 SI32AX750S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×750 | 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 SI32AX750S Is Used
Light-Part Ejection
Uses the 402N push force at 0.5MPa to push small machined components out of an automated lathe.
Package Diverting
Actuates a routing gate along a packaging line, with the 750mm stroke moving products between parallel belts.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX750S with the SAI32AX750S
To replace the SI32AX750S, order the SAI32AX750S. Verify the ISO 15552 mounting interface, 32mm bore, 750mm stroke, G1/8 port, and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors (SAI uses current AirTAC switches), while the -A code specifies the SUS420J2 stainless rod over standard carbon steel. Sizing both ways: a 40mm bore yields 628N push at 0.5MPa if more force is needed, while the 32mm bore provides 402N. A plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 750mm stroke, prevent rod bending by supporting the load with external guides to avoid side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX750S
- ✓ 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 SI32AX750S FAQ
Yes, the SI32AX750S is discontinued. The direct replacement is the SAI32AX750S. It shares the same ISO 15552 mounting interface, 32mm bore, 750mm stroke, output force, G1/8 port, and mounting accessories, fitting existing fixtures perfectly.
This double-acting cylinder has a G1/8 port and M10x1.25 rod thread. Force ratings are: 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. Speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX750S replacement — usually within 7-8 hours.