This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X125SN, 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 SI32X125SN
The AirTAC SI32 Standard Air Cylinder SI32X125SN 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 SAI32X125SN, 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 → SAI32X125SN
- 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 SI32X125SN
The AirTAC SI32X125SN is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 125 mm stroke. Delivering 402 N push force at 0.5 MPa via a G1/8 port, it is replaced by the SAI32X125SN. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force and port, fitting existing fixtures perfectly.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The NBR seals handle -20 to +70 C, while Viton H raises this to 150 C. The -S magnet works with legacy CS1-B/DS1-B sensors, and SAIL/BSAI lock variants offer load holding the standard model lacks.
Airtac SI32 Standard Air Cylinder SI32X125SN Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X125SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X125SN |
| 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 SAI32X125SN 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 SAI32X125SN 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 SI32X125SN
| 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 SI32X125SN Is Used
Small Part Ejection
Ideal for pushing lightweight machined components out of a fixture using 402 N of thrust at 0.5 MPa.
Gripping Actuation
Provides reliable 125 mm motion to open and close small material gripper assemblies in assembly lines.
Replacing the Airtac SI32 Standard Air Cylinder SI32X125SN with the SAI32X125SN
To replace the SI32X125SN, order the SAI32X125SN. Verify the ISO 15552 mounting interface, 125 mm stroke, G1/8 port (PT/G/NPT thread), and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors, while the -N denotes NBR seals. If sizing up, the 40 mm bore yields 628 N push at 0.5 MPa; sizing down is not an option as 32 mm is the smallest. For this 125 mm stroke, side-load is minimal, but longer strokes require guide rails to prevent rod bending. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X125SN
- ✓ 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 SI32X125SN FAQ
Yes, the SI32X125SN is discontinued. The direct replacement is the SAI32X125SN. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 125 mm stroke, 402 N force, G1/8 port, and mounting interface.
The 32 mm bore delivers 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. Operating speed is 30-800 mm/s. It uses a G1/8 port and a 12 mm rod with an M10x1.25 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X125SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X125SN replacement — usually within 7-8 hours.