This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X745S, 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 SI32X745S
The AirTAC SI32 Standard Air Cylinder SI32X745S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 745mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X745S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke745 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X745S
- 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 SI32X745S
The AirTAC SI32X745S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 745mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32X745S, a direct upgrade retaining the exact interface, bore, stroke, force, port and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF and BSAI lock variants absent in the SI line.
Airtac SI32 Standard Air Cylinder SI32X745S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X745S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X745S |
| Bore size | Ø32 mm |
| Stroke | 745 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 SAI32X745S 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 SAI32X745S 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 SI32X745S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×745 | 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 SI32X745S Is Used
Light-Part Diverting
Ideal for routing small packages on a conveyor line over a 745mm extension, utilizing the 402N push force safely.
Compact Ejection
Ejects lightweight machined components from a fixture, requiring the 32mm bore footprint and G1/8 pneumatic supply.
Replacing the Airtac SI32 Standard Air Cylinder SI32X745S with the SAI32X745S
To replace the SI32X745S, order the SAI32X745S. Confirm the ISO 15552 mounting interface, 32mm bore, 745mm stroke, G1/8 port (PT/G/NPT thread), and the -S magnet for CS1-B/DS1-B legacy sensors. If you need more force, the adjacent 40mm bore yields 628N push at 0.5MPa; if less is acceptable, check smaller options. Because this is a 745mm stroke, use external guides to prevent rod-bending and side-load damage. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X745S
- ✓ 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 SI32X745S FAQ
Yes, the SI32X745S is discontinued. The direct replacement is the AirTAC SAI32X745S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 745mm stroke, 402N force, G1/8 port and mounting fixtures.
At 0.5MPa, push force is 402N and pull is 345N. Push force is 563N at 0.7MPa and 724N at 0.9MPa. The theoretical max force is 82kgf at 1.0MPa. Operating speed is 30-800mm/s, and the G1/8 port is fixed by the 32mm bore.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X745S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X745S replacement — usually within 7-8 hours.