This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X275SN, 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 SI32X275SN
The AirTAC SI32 Standard Air Cylinder SI32X275SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 275mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X275SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke275 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X275SN
- 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 SI32X275SN
The AirTAC SI32X275SN is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 275 mm stroke. It delivers 402 N push and 345 N pull at 0.5 MPa, operating via a G1/8 port. The direct replacement is the SAI32X275SN, matching the interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This NBR sealed unit runs -20 to +70 C; Viton H extends this to 150 C. The -S magnet works with CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32X275SN Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X275SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X275SN |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAI32X275SN 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 SAI32X275SN 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 SI32X275SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×275 | 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 SI32X275SN Is Used
Small Part Ejection
Uses the 402 N push force to eject light machined components from a fixture cleanly.
Package Diverting
The 275 mm stroke actuates a diverter arm to route small boxes on a packaging line.
Clamp Actuation
Provides reliable clamping pressure for holding thin sheet metal during light assembly.
Replacing the Airtac SI32 Standard Air Cylinder SI32X275SN with the SAI32X275SN
To replace the SI32X275SN, order the SAI32X275SN. Verify the ISO 15552 mounting interface, 32 mm bore, 275 mm stroke, G1/8 port, and NBR seal. The -S magnet supports legacy CS1-B/DS1-B switches, while the SAI uses current AirTAC sensors. At 275 mm stroke, use a guide to prevent rod bending and side loads. Neighbouring bores: a 40 mm bore gives 628 N push at 0.5 MPa, while a 32 mm bore at 0.7 MPa yields 563 N. A plain 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 → SAI32X275SN
- ✓ 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 SI32X275SN FAQ
Yes, the SI32X275SN is discontinued. The direct replacement is the SAI32X275SN. It is dimensionally interchangeable per ISO 15552, keeping the same 32 mm bore, 275 mm stroke, G1/8 port, and mounting interface.
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 maximum theoretical force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X275SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X275SN replacement — usually within 7-8 hours.