This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X240S, 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 SI32X240S
The AirTAC SI32 Standard Air Cylinder SI32X240S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 240mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X240S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke240 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X240S
- 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 SI32X240S
The AirTAC SI32X240S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 240 mm stroke. Delivering 402 N push at 0.5 MPa, it is replaced by the SAI32X240S. This direct upgrade keeps the same G1/8 port, M10x1.25 rod thread and mounting interface. The SAI uses an upgraded piston seal with two Y-shaped elements for low start-up pressure, and adds SAIL, SAIF and BSAI variants the SI lacked.
The -S suffix means it has a piston magnet for CS1-B/DS1-B sensors. Note that a plain cylinder drifts on air loss; the 27 mm cushions only decelerate. For load holding, use an external rod lock or SAIL lock variant.
Airtac SI32 Standard Air Cylinder SI32X240S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X240S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X240S |
| Bore size | Ø32 mm |
| Stroke | 240 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 SAI32X240S 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 SAI32X240S 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 SI32X240S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×240 | 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 SI32X240S Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to eject light machined components from a fixture reliably.
Package Diverting
Actuates a diverter arm over 240 mm to sort small boxes on a packaging line at up to 800 mm/s.
Replacing the Airtac SI32 Standard Air Cylinder SI32X240S with the SAI32X240S
To replace the SI32X240S, order the SAI32X240S. Verify your ISO 15552 mounting accessories (LB, FA, TC, etc.), the G1/8 port, and the -S magnet for current AirTAC switches. At 240 mm stroke, check side-load alignment to prevent rod bending. Sizing both ways: this 32 mm bore gives 402 N push at 0.5 MPa; if undersized, the 40 mm bore offers 628 N. For load holding on air loss, the cushion only decelerates; add an external pilot check valve or choose the SAIL lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X240S
- ✓ 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 SI32X240S FAQ
Yes, the SI32X240S is discontinued. The direct replacement is the AirTAC SAI32X240S. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 240 mm stroke, G1/8 port and mounting interface, but features an upgraded piston seal.
The 32 mm bore features a G1/8 port and provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max force of 82 kgf at 1.0 MPa. It operates at 30-800 mm/s with a 27 mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X240S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X240S replacement — usually within 7-8 hours.