This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X350, 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 SI32X350
The AirTAC SI32 Standard Air Cylinder SI32X350 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 350mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X350, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke350 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X350
- 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 SI32X350
The AirTAC SI32X350 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 350mm stroke. Delivering 402N push at 0.5MPa via a G1/8 port, it is replaced by the SAI32X350. This direct successor shares the exact ISO 15552 mounting interface, bore, force and M10x1.25 rod thread.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and longevity. Note this SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. The SAI family also introduces SAIL, SAIF and BSAI lock variants absent in the SI line.
Airtac SI32 Standard Air Cylinder SI32X350 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X350 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X350 |
| Bore size | Ø32 mm |
| Stroke | 350 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 SAI32X350 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 SAI32X350 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 SI32X350
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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 SI32X350 Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to eject light machined components from a fixture over the 350mm travel distance.
Tray Positioning
Moves empty pallets or trays into a loading station, benefiting from the adjustable 27mm air cushions at both ends for smooth stops.
Replacing the Airtac SI32 Standard Air Cylinder SI32X350 with the SAI32X350
To replace the SI32X350, order the SAI32X350. Verify the ISO 15552 interface, 350mm stroke, G1/8 port (PT/G/NPT) and mounting accessory. Because this SKU has no -S magnet, it cannot support position sensing; order a magnet-equipped SAI if switches are needed. The 32mm bore yields 402N push at 0.5MPa; sizing down or up requires checking neighbouring bores. For stroke lengths of 350mm or more, use external guides to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X350
- ✓ 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 SI32X350 FAQ
Yes, the SI32X350 is discontinued. The direct replacement is the SAI32X350. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 350mm stroke, output force, G1/8 port and mounting interface.
It has a G1/8 port. 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. Operating speed is 30-800mm/s.
Request a Quote for the SAI32X350
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X350 replacement — usually within 7-8 hours.