This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX75, 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 SI32AX75
The AirTAC SI32 Standard Air Cylinder SI32AX75 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 SAI32AX75, 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 → SAI32AX75
- 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 SI32AX75
The AirTAC SI32AX75 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 75 mm stroke. It delivers 402 N push force at 0.5 MPa through a G1/8 port. AirTAC replaced this legacy unit with the SAI32AX75, a direct sharing the exact interface, bore, stroke, force, port and mounting.
The SAI32AX75 upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a magnet (-S) so it cannot take a sensor, unlike CS1-B/DS1-B legacy switches. The -A code denotes a SUS420J2 stainless rod.
Airtac SI32 Standard Air Cylinder SI32AX75 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX75 |
| 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 SAI32AX75 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 SAI32AX75 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 SI32AX75
| 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 SI32AX75 Is Used
Package Diverting
Provides reliable 75 mm actuation to push small parcels or cartons off a main conveyor line at high cycling rates.
Compact Ejection
Fits within tight machine footprints to eject molded or stamped parts from press dies using a SUS420J2 stainless rod.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX75 with the SAI32AX75
To replace the SI32AX75, order the SAI32AX75. Confirm the ISO 15552 mounting interface, 32 mm bore, 75 mm stroke, G1/8 port (PT/G/NPT thread) and your mounting accessory. Since this SKU lacks a magnet, it cannot accept a sensor; add the -S suffix if position detection is needed. For sizing, the neighbouring 40 mm bore yields 628 N push at 0.5 MPa, while dropping to a 25 mm bore reduces force. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX75
- ✓ 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 SI32AX75 FAQ
Yes, the AirTAC SI32AX75 is discontinued and end-of-life. The direct replacement is the SAI32AX75. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 75 mm stroke, output force, G1/8 port and mounting interface.
This double-acting cylinder has a G1/8 air port and M10x1.25 rod thread. It generates 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 maximum of 82 kgf at 1.0 MPa.
Request a Quote for the SAI32AX75
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX75 replacement — usually within 7-8 hours.