This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X320S, 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 SI32X320S
The AirTAC SI32 Standard Air Cylinder SI32X320S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 320mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X320S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke320 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X320S
- 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 SI32X320S
The AirTAC SI32X320S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 320mm stroke. Delivering 402N push force at 0.5MPa, it is replaced by the SAI32X320S. This direct successor retains the exact G1/8 port, M10x1.25 thread, and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The family adds SAIL, SAIF, and BSAI variants. The -S magnet works with CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32X320S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X320S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X320S |
| Bore size | Ø32 mm |
| Stroke | 320 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 SAI32X320S 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 SAI32X320S 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 SI32X320S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×320 | 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 SI32X320S Is Used
Small Part Ejection
Uses the 402N push force at 0.5 MPa to reliably knock light molded components out of a fixture.
Package Diverting
The 320mm stroke extends across a narrow belt to push small cartons to a secondary packing lane.
Replacing the Airtac SI32 Standard Air Cylinder SI32X320S with the SAI32X320S
To replace the SI32X320S, order the SAI32X320S direct, confirming the ISO 15552 interface, 32mm bore, 320mm stroke, G1/8 port, and magnet. At 0.5MPa it yields 402N push and 345N pull; if undersized, the 40mm bore gives 628N. For the 320mm stroke, use external guides to prevent rod bending. Plain cylinders drift on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X320S
- ✓ 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 SI32X320S FAQ
Yes, the SI32X320S is discontinued. The direct replacement is the SAI32X320S. It is dimensionally interchangeable per ISO 15552, keeping the same 32mm bore, 320mm stroke, force, G1/8 port, and mounting fixtures.
It has a G1/8 port. Force ratings are: 402N push and 345N pull at 0.5 MPa, 563N push at 0.7 MPa, 724N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X320S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X320S replacement — usually within 7-8 hours.