This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X900S, 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 SI32X900S
The AirTAC SI32 Standard Air Cylinder SI32X900S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 900mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X900S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke900 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X900S
- 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 SI32X900S
The AirTAC SI32X900S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 900mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X900S. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force and port.
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 the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI32 Standard Air Cylinder SI32X900S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X900S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X900S |
| Bore size | Ø32 mm |
| Stroke | 900 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 SAI32X900S 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 SAI32X900S 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 SI32X900S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×900 | 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 SI32X900S Is Used
Light-Part Diversion
Ideal for pushing small packages or light components on a 900mm conveyor lane where a 241N working load is sufficient.
Long-Reach Transfer
Handles extended horizontal part transfer between machine stations, provided external guides support the 900mm rod extension.
Replacing the Airtac SI32 Standard Air Cylinder SI32X900S with the SAI32X900S
To replace the SI32X900S, order the SAI32X900S. Confirm the ISO 15552 mounting interface, 32mm bore, 900mm stroke, G1/8 port (PT/G/NPT thread options) and your mounting accessory. The -S suffix indicates a piston magnet for CS1-B/DS1-B switches. Sizing both ways: if you need more force, the 40mm bore offers 628N push at 0.5MPa; if less force is acceptable, there is no smaller standard ISO bore. Note that a 900mm stroke on a 12mm rod demands external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X900S
- ✓ 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 SI32X900S FAQ
Yes, the SI32X900S is discontinued. The direct replacement is the AirTAC SAI32X900S. It is dimensionally interchangeable per ISO 15552, offering the same 32mm bore, 900mm stroke, output force, G1/8 port and mounting interface.
The 32mm bore uses a G1/8 port. At 0.5 MPa it provides 402N push and 345N pull force. At 0.7 MPa push is 563N, and at 0.9 MPa it is 724N. The theoretical maximum force is 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X900S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X900S replacement — usually within 7-8 hours.