This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX125N, 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 SI32AX125N
The AirTAC SI32 Standard Air Cylinder SI32AX125N 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 SAI32AX125N, 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 → SAI32AX125N
- 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 SI32AX125N
The AirTAC SI32AX125N is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 125 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32AX125N, matching the interface, force, and mounting exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This -A variant has a SUS420J2 stainless rod, and the -N seal is NBR. Lacking a -S magnet, it takes no sensor.
Airtac SI32 Standard Air Cylinder SI32AX125N Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX125N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX125N |
| 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 SAI32AX125N 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 SAI32AX125N 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 SI32AX125N
| 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 SI32AX125N Is Used
Small Part Ejection
Uses the 402 N push force to reliably knock small molded parts out of an aluminum fixture.
Package Diverting
Actuates a lightweight routing gate to sort small boxes along a packaging line.
Clamp Actuation
Provides low-friction clamping pressure for delicate electronic PCB routing tasks.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX125N with the SAI32AX125N
To replace the SI32AX125N, order the SAI32AX125N. Verify the ISO 15552 mounting, 125 mm stroke, and G1/8 port. This -A model specifies a SUS420J2 stainless rod, and -N denotes the NBR seal. Because it lacks a -S magnet, it cannot accept CS1-B/DS1-B sensors. For sizing, the 402 N push at 0.5 MPa yields a ~241 N safe load (vertical lift ~20 kg). If more force is needed, a 40 mm bore offers 628 N. Plain cylinders drift on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 125 mm stroke, side-load risks are low, but ensure straight alignment.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX125N
- ✓ 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 SI32AX125N FAQ
Yes, the SI32AX125N is discontinued. The direct replacement is the SAI32AX125N. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 125 mm stroke, force, and G1/8 port.
This double-acting cylinder has a G1/8 port. It generates 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. The SAI replacement adds an upgraded piston seal.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX125N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX125N replacement — usually within 7-8 hours.