This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX270, 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 SI32AX270
The AirTAC SI32 Standard Air Cylinder SI32AX270 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 270mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX270, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke270 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX270
- 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 SI32AX270
The AirTAC SI32AX270 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 270mm stroke, and SUS420J2 stainless steel piston rod. It delivers a push force of 402 N at 0.5 MPa. The direct replacement is the SAI32AX270, retaining the same G1/8 port, M10x1.25 thread, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SI32AX270 SKU lacks a magnet, it cannot accept a position switch.
Airtac SI32 Standard Air Cylinder SI32AX270 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX270 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX270 |
| Bore size | Ø32 mm |
| Stroke | 270 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 SAI32AX270 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 SAI32AX270 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 SI32AX270
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×270 | 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 SI32AX270 Is Used
Stainless Rod Actuation
Ideal for light-duty machinery requiring the SUS420J2 corrosion-resistant rod, pushing loads up to 241 N safely.
Package Diverting
Provides 270mm travel to push small cartons off a conveyor line, utilizing the 32mm bore's 402 N thrust at 0.5 MPa.
Lab Fixture Positioning
Moves test rigs and clamps with a 20 kg vertical lift capacity, relying on adjustable 27mm air cushions for smooth stops.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX270 with the SAI32AX270
To replace the SI32AX270, order the SAI32AX270 and verify your ISO 15552 mounting fixtures, 270mm stroke, and G1/8 port. This SKU has no magnet (-S), so it cannot support legacy CS1-B/DS1-B sensors; order a magnet-equipped SAI if sensing is needed. The 270mm stroke exceeds 300mm? No, but at longer strokes guide rods prevent side-load bending. If you need more force, the adjacent 40mm bore yields 628 N push at 0.5 MPa. Note that a standard cylinder drifts without air; for load holding use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX270
- ✓ 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 SI32AX270 FAQ
Yes, the SI32AX270 is discontinued. The direct replacement is the SAI32AX270. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 270mm stroke, force, G1/8 port, and mounting accessories.
It features a G1/8 air port and M10x1.25 rod thread. The thrust is 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 max of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX270
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX270 replacement — usually within 7-8 hours.