This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX280, 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 SI32AX280
The AirTAC SI32 Standard Air Cylinder SI32AX280 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 SAI32AX280, 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 → SAI32AX280
- 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 SI32AX280
The AirTAC SI32AX280 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore, 280 mm stroke, and 12 mm rod. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32AX280, which shares identical ISO 15552 mounting dimensions, stroke, and output force.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU uses a SUS420J2 stainless steel rod (-A) for corrosion resistance and lacks a magnet, so it cannot accept position sensors. For load holding, note that cushions only decelerate; use an external pilot check valve or the SAIL lock variant.
Airtac SI32 Standard Air Cylinder SI32AX280 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX280 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX280 |
| 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 SAI32AX280 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 SAI32AX280 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 SI32AX280
| 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 SI32AX280 Is Used
Small Part Ejection
Ideal for pushing lightweight machined components out of a fixture using its 402 N push force at 0.5 MPa.
Package Diverting
Actuates routing gates on a 30-800 mm/s packaging line, with the SUS420J2 rod resisting humid washdown environments.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX280 with the SAI32AX280
To replace the SI32AX280, order the SAI32AX280. Confirm the ISO 15552 mounting interface, the 32 mm bore, 280 mm stroke, G1/8 port, and M10x1.25 rod thread. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; choose an -S variant if sensing is required. For sizing, the 32 mm bore yields 402 N push at 0.5 MPa (safe load ~241 N, vertical lift ~20 kg). If less force is acceptable, a 25 mm bore offers a smaller footprint, while a 40 mm bore provides 628 N push at 0.5 MPa. At 280 mm stroke, ensure guide alignment to prevent rod bending and side-load wear. Remember that a standard cylinder drifts on air loss; for held loads, explore the SAIL or BSAI lock variants or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX280
- ✓ 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 SI32AX280 FAQ
Yes, the SI32AX280 is discontinued. The direct replacement is the SAI32AX280. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 280 mm stroke, output force, G1/8 port, and mounting interface.
This 32 mm bore cylinder 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, 724 N push at 0.9 MPa, and a theoretical maximum force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX280
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX280 replacement — usually within 7-8 hours.