This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X125SFTC, 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 SI32X125SFTC
The AirTAC SI32 Standard Air Cylinder SI32X125SFTC 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 SAI32X125SFTC, 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 → SAI32X125SFTC
- 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 SI32X125SFTC
The AirTAC SI32X125SFTC 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. AirTAC replaced this legacy unit with the SAI32X125SFTC, a direct sharing the exact FTC trunnion mount, bore, stroke, and output force.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI32 Standard Air Cylinder SI32X125SFTC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X125SFTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X125SFTC |
| 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 SAI32X125SFTC 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 SAI32X125SFTC 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 SI32X125SFTC
| 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 SI32X125SFTC Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to push lightweight plastic or aluminum components out of machining fixtures.
Package Diverting
Actuates a diverting gate on a 125mm stroke to reroute small boxes on a packaging line at up to 800mm/s.
Clamp Actuation
Secures thin workpieces under the 345N pull force, holding materials steady for secondary drilling operations.
Replacing the Airtac SI32 Standard Air Cylinder SI32X125SFTC with the SAI32X125SFTC
To replace the SI32X125SFTC, order the SAI32X125SFTC. Verify the ISO 15552 interface, 32mm bore, 125mm stroke, G1/8 port, and FTC trunnion mounting. The -S suffix means your original used CS1-B/DS1-B sensors; the SAI replacement accepts current AirTAC switches. If you need more force, the neighboring 40mm bore provides 628N push at 0.5MPa. If lowering force is acceptable, note this 32mm bore yields 402N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify an SAIL/BSAI lock variant. At 125mm stroke, rod bending is minimal, but ensure guide alignment to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X125SFTC
- ✓ 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 SI32X125SFTC FAQ
Yes, the SI32X125SFTC is discontinued. The direct replacement is the SAI32X125SFTC. It shares the identical ISO 15552 mounting interface, 32mm bore, 125mm stroke, output force, G1/8 port, and FTC trunnion mount, fitting directly into existing fixtures.
The 32mm bore provides 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. Operating speed is 30-800mm/s, with a 27mm adjustable air cushion at both ends.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X125SFTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X125SFTC replacement — usually within 7-8 hours.