This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX75S, 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 SI32AX75S
The AirTAC SI32 Standard Air Cylinder SI32AX75S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 75mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX75S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke75 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX75S
- 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 SI32AX75S
The AirTAC SI32AX75S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore, 75 mm stroke, and a SUS420J2 stainless steel rod. It delivers 402 N push force at 0.5 MPa through a G1/8 port. AirTAC replaced it with the SAI32AX75S, a direct upgrade retaining the exact interface, bore, stroke, and mounting.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The original SI32AX75S includes a magnet for CS1-B/DS1-B switches, while the SAI family adds SAIL, SAIF, and BSAI lock variants.
Airtac SI32 Standard Air Cylinder SI32AX75S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX75S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX75S |
| Bore size | Ø32 mm |
| Stroke | 75 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 SAI32AX75S 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 SAI32AX75S 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 SI32AX75S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 SI32AX75S Is Used
Compact Part Ejection
Ideal for pushing lightweight machined components out of a fixture, utilizing the 402 N push force at 0.5 MPa.
Package Diverting
Sorts small cartons on a conveyor belt with a 75 mm stroke, safely handling loads under the 20 kg vertical lift limit.
Lab Positioning
Moves sample trays in testing equipment, where the SUS420J2 stainless rod provides necessary corrosion resistance.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX75S with the SAI32AX75S
To replace the SI32AX75S, order the SAI32AX75S. Confirm the ISO 15552 mounting interface, 32 mm bore, 75 mm stroke, G1/8 port (PT/G/NPT thread options), and the SUS420J2 stainless rod (-A). The built-in magnet (-S) works with legacy CS1-B/DS1-B sensors, but the SAI uses current AirTAC switches. For sizing, the 40 mm neighbor bore yields 628 N push at 0.5 MPa if you need more force. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX75S
- ✓ 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 SI32AX75S FAQ
Yes, the SI32AX75S is discontinued. The direct replacement is the AirTAC SAI32AX75S. It is dimensionally interchangeable per ISO 15552, keeping the same 32 mm bore, 75 mm stroke, output force, G1/8 port, and mounting fixtures.
The 32 mm bore provides 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. Operating speed is 30-800 mm/s. It uses a G1/8 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX75S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX75S replacement — usually within 7-8 hours.