This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX115S, 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 SI32AX115S
The AirTAC SI32 Standard Air Cylinder SI32AX115S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 115mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX115S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke115 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX115S
- 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 SI32AX115S
The AirTAC SI32AX115S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 115mm stroke, and a SUS420J2 stainless steel rod. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32AX115S. This direct upgrade shares identical ISO 15552 mounting, stroke, and force, fitting existing fixtures perfectly.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure and long life. The -S magnet works with legacy CS1-B/DS1-B sensors, while a plain cylinder drifts on air loss—use SAIL or BSAI lock variants for holding.
Airtac SI32 Standard Air Cylinder SI32AX115S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX115S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX115S |
| Bore size | Ø32 mm |
| Stroke | 115 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 SAI32AX115S 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 SAI32AX115S 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 SI32AX115S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×115 | 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 SI32AX115S Is Used
Small Part Ejection
Uses the 402N push force to eject small machined components from a fixture without damaging surfaces.
Stainless Rod Clamping
The SUS420J2 rod provides corrosion resistance for clamping tasks in washdown or lightly humid environments.
Package Diverting
Deploys the 115mm stroke to push lightweight packages off a conveyor line at speeds up to 800mm/s.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX115S with the SAI32AX115S
To replace the SI32AX115S, order the SAI32AX115S. Confirm the ISO 15552 mounting interface, 115mm stroke, G1/8 port, and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors (SAI uses current AirTAC switches), and -A denotes the SUS420J2 rod. Sizing both ways: a 40mm bore yields 628N push at 0.5MPa, whereas a 32mm bore provides 402N. Note that air cushions only decelerate; for load holding on air loss, use an external rod lock, pilot check valve, or SAIL/BSAI variant. At 115mm stroke, rod bending is minimal, but ensure guide alignment to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX115S
- ✓ 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 SI32AX115S FAQ
Yes, the SI32AX115S is discontinued. The direct replacement is the SAI32AX115S, which shares the same ISO 15552 mounting interface, 32mm bore, 115mm stroke, force, and G1/8 port.
It features a G1/8 port and delivers 402N push / 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX115S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX115S replacement — usually within 7-8 hours.