This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X90, 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 SI32X90
The AirTAC SI32 Standard Air Cylinder SI32X90 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 90mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X90, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke90 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X90
- 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 SI32X90
The AirTAC SI32X90 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 90 mm stroke. It features an extruded aluminum barrel, a 12 mm carbon steel rod, and adjustable air cushions. Delivering 402 N push force at 0.5 MPa, it is replaced by the SAI32X90.
The SAI32X90 is a direct upgrade retaining the exact ISO 15552 mounting interface, G1/8 port, and M10x1.25 rod thread. It uses an upgraded two Y-shaped one-way piston seal for low start-up pressure. This non-magnet SKU cannot take a sensor.
Airtac SI32 Standard Air Cylinder SI32X90 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X90 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X90 |
| Bore size | Ø32 mm |
| Stroke | 90 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 SAI32X90 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 SAI32X90 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 SI32X90
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×90 | 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 SI32X90 Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably push lightweight machined components out of a fixture.
Package Diverting
The 90 mm stroke actuates a diverter arm to route small boxes on a conveyor line at speeds up to 800 mm/s.
Replacing the Airtac SI32 Standard Air Cylinder SI32X90 with the SAI32X90
To replace the SI32X90, order the SAI32X90. Confirm the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/8 port, and the 90 mm stroke. Because this specific SKU lacks the -S magnet, it cannot accept CS1-B or DS1-B sensors; choose an -S variant if position detection is needed. The 32 mm bore provides 402 N push at 0.5 MPa; sizing down risks stalling, while sizing up to 40 mm yields 628 N but requires G1/4 plumbing. For load holding on air loss, note that the standard cushion only decelerates; add an external pilot check valve or explore the SAIL lock or SAIF self-valve variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X90
- ✓ 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 SI32X90 FAQ
Yes, the SI32X90 is discontinued. The direct replacement is the AirTAC SAI32X90. It shares the identical ISO 15552 mounting interface, 32 mm bore, 90 mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly while adding an upgraded piston seal.
The bore is 32 mm with a G1/8 air port and an M10x1.25 rod thread. At 0.5 MPa it pushes 402 N and pulls 345 N. At 0.7 MPa push is 563 N, and at 0.9 MPa it is 724 N. The theoretical maximum force is 82 kgf at 1.0 MPa.
Request a Quote for the SAI32X90
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X90 replacement — usually within 7-8 hours.