This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X125FTC, 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 SI32X125FTC
The AirTAC SI32 Standard Air Cylinder SI32X125FTC 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 SAI32X125FTC, 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 → SAI32X125FTC
- 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 SI32X125FTC
The AirTAC SI32X125FTC is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 125mm stroke. It delivers 402N push and 345N pull at 0.5MPa through a G1/8 port. AirTAC replaced this legacy unit with the SAI32X125FTC, a direct sharing the exact FTC trunnion mount, M10x1.25 rod thread, and 27mm cushions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. For sensing, note this specific SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B switches. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI32 Standard Air Cylinder SI32X125FTC Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X125FTC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X125FTC |
| 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 SAI32X125FTC 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 SAI32X125FTC 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 SI32X125FTC
| 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 SI32X125FTC Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight machined components out of a fixture at the end of a cycle.
Package Diverting
Actuates a short 125mm stroke diverter arm to sort small boxes on a line, operating efficiently at 30-800 mm/s.
Clamp Actuation
Secures thin workpieces in a welding jig using the FTC trunnion mount to accommodate pivoting clearance.
Replacing the Airtac SI32 Standard Air Cylinder SI32X125FTC with the SAI32X125FTC
To replace the SI32X125FTC, order the SAI32X125FTC. Confirm the ISO 15552 FTC trunnion interface, 32mm bore, 125mm stroke, G1/8 port (PT/G/NPT thread options), and that you do not need a magnet since this no-S SKU cannot hold a sensor. If sizing up, the 40mm bore yields 628N push at 0.5MPa; sizing down is not available below 32mm. Because this plain cylinder drifts on air loss—the cushion only decelerates—use an external pilot check valve or the SAIL/BSAI lock variant for load holding. At 125mm stroke, rod bending is minimal, but ensure side loads are minimized with proper guide rails.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X125FTC
- ✓ 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 SI32X125FTC FAQ
Yes, the SI32X125FTC is discontinued. The direct replacement is the SAI32X125FTC. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 125mm stroke, G1/8 port, and FTC mounting interface to fit existing fixtures directly.
This double-acting cylinder uses a G1/8 port. It provides 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum force of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X125FTC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X125FTC replacement — usually within 7-8 hours.