This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X280S, 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 SI32X280S
The AirTAC SI32 Standard Air Cylinder SI32X280S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 280mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X280S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke280 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X280S
- 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 SI32X280S
The AirTAC SI32X280S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 280 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32X280S, a direct upgrade retaining the exact same mounting interface, output force, and cushioning.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the original SI line.
Airtac SI32 Standard Air Cylinder SI32X280S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X280S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X280S |
| Bore size | Ø32 mm |
| Stroke | 280 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 SAI32X280S 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 SAI32X280S 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 SI32X280S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×280 | 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 SI32X280S Is Used
Small Part Ejection
Provides reliable 402 N push force at 0.5 MPa to eject machined components from fixtures on automated lines.
Package Diverting
Actuates diverting gates along packaging conveyors, utilizing the 280 mm stroke to clear passing goods.
Light Lift Gates
Drives lightweight access panels and sorting gates where a 20 kg vertical lift capacity is sufficient.
Replacing the Airtac SI32 Standard Air Cylinder SI32X280S with the SAI32X280S
To replace the SI32X280S, order the SAI32X280S. Confirm the ISO 15552 mounting interface, the 32 mm bore, 280 mm stroke, G1/8 port (PT/G/NPT thread options), and the -S magnet for CS1-B/DS1-B sensors. Because the 280 mm stroke exceeds 300 mm? No, but at 280 mm you should still verify guide alignment to prevent rod bending under side loads. If sizing up, a 40 mm bore yields 628 N push at 0.5 MPa; if sizing down, a 32 mm is the minimum here. Note that a standard cylinder drifts on air loss—the cushion only decelerates. For load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X280S
- ✓ 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 SI32X280S FAQ
Yes, the AirTAC SI32X280S is discontinued. The direct replacement is the SAI32X280S. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 280 mm stroke, G1/8 port, and mounting accessories.
The 32 mm bore uses a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical maximum force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X280S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X280S replacement — usually within 7-8 hours.