This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX140S, 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 SI32AX140S
The AirTAC SI32 Standard Air Cylinder SI32AX140S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 140mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX140S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke140 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX140S
- 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 SI32AX140S
The AirTAC SI32AX140S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 140 mm stroke. It delivers 402 N push force at 0.5 MPa through a G1/8 port. The direct replacement is the SAI32AX140S, sharing the same interface, stroke, force and mounting fixtures.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This -S model has a piston magnet for legacy CS1-B/DS1-B sensors, and the -A code denotes a SUS420J2 stainless rod.
Airtac SI32 Standard Air Cylinder SI32AX140S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX140S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX140S |
| Bore size | Ø32 mm |
| Stroke | 140 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 SAI32AX140S 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 SAI32AX140S 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 SI32AX140S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×140 | 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 SI32AX140S Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to reliably push lightweight molded parts out of an injection molding fixture.
Package Diverting
Actuates a diverting gate on a packaging line, where the 140 mm stroke provides just enough travel to redirect small boxes.
Compact Clamping
Secures small electronic components during machining, taking advantage of the 32 mm profile barrel to fit tight cell setups.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX140S with the SAI32AX140S
To replace the SI32AX140S, order the SAI32AX140S. Confirm the ISO 15552 mounting interface, 140 mm stroke, G1/8 port, and your mounting accessory (LB, FA, TC, etc.). The -S magnet and -A SUS420J2 stainless rod must be specified on the new order. If you need more force, the neighbouring 40 mm bore offers 628 N push at 0.5 MPa. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants. At 140 mm stroke, side-load is minimal, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX140S
- ✓ 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 SI32AX140S FAQ
Yes, the SI32AX140S is discontinued. The direct replacement is the SAI32AX140S. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 140 mm stroke, G1/8 port, and mounting interface.
It features a G1/8 port and delivers 402 N push / 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical maximum of 82 kgf at 1.0 MPa. The SAI replacement retains these exact figures.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX140S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX140S replacement — usually within 7-8 hours.