This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX125, 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 SI32AX125
The AirTAC SI32 Standard Air Cylinder SI32AX125 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 125mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX125, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX125
- 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 SI32AX125
The AirTAC SI32AX125 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 125mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX125, matching the exact bore, stroke, force, port and ISO 15552 mounting interface.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU lacks a magnet (-S) so it cannot take a sensor; it uses an SUS420J2 stainless rod (-A) for corrosion resistance.
Airtac SI32 Standard Air Cylinder SI32AX125 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX125 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX125 |
| Bore size | Ø32 mm |
| Stroke | 125 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 SAI32AX125 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 SAI32AX125 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 SI32AX125
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 SI32AX125 Is Used
Compact Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight machined components out of a fixture on an automated line.
Stainless Rod Sorting
The SUS420J2 stainless piston rod (-A option) provides corrosion resistance for diverting parts in humid or lightly wash-down packaging environments.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX125 with the SAI32AX125
To replace the SI32AX125, order the SAI32AX125. Confirm the ISO 15552 mounting interface, the 125mm stroke, the G1/8 port (PT/G/NPT thread options), and your mounting accessory (LB, FA, TC, etc.). Because this SKU has no magnet, it cannot accept a CS1-B/DS1-B sensor; if sensing is needed, select an SAI32AX125S. Sizing both ways: the 32mm bore yields 402N push at 0.5MPa, while the neighbouring 40mm bore offers 628N. For load holding, note that a plain cylinder drifts on air loss—the cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variant for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX125
- ✓ 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 SI32AX125 FAQ
Yes, the SI32AX125 is discontinued. The direct replacement is the SAI32AX125. It is dimensionally interchangeable per ISO 15552, keeping the same 32mm bore, 125mm stroke, G1/8 port, and mounting interface.
The 32mm bore uses a G1/8 port. Force ratings are: 402N push and 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 SAI32AX125
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX125 replacement — usually within 7-8 hours.