This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X63S, 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 SI32X63S
The AirTAC SI32 Standard Air Cylinder SI32X63S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 63mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X63S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke63 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X63S
- 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 SI32X63S
The AirTAC SI32X63S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 63mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is directly replaced by the SAI32X63S. This direct upgrade shares identical mounting, force and interface dimensions, fitting existing fixtures perfectly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and longevity. The SI-S magnet works with legacy CS1-B/DS1-B sensors, while the SAI family introduces SAIL, SAIF and BSAI lock variants previously unavailable.
Airtac SI32 Standard Air Cylinder SI32X63S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X63S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X63S |
| Bore size | Ø32 mm |
| Stroke | 63 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 SAI32X63S 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 SAI32X63S 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 SI32X63S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×63 | 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 SI32X63S Is Used
Small Part Ejection
Uses the 402N push force at 0.5MPa to reliably push lightweight molded components out of an injection mold fixture.
Package Routing
Diverts small cartons on a conveyor line with a 63mm stroke, benefiting from the 30-800mm/s speed range.
Clamp Actuation
Secures delicate workpieces in machining cells where the 345N pull force at 0.5MPa provides ample grip without deformation.
Replacing the Airtac SI32 Standard Air Cylinder SI32X63S with the SAI32X63S
To replace the SI32X63S, order the SAI32X63S. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), G1/8 port thread (PT/G/NPT) and the -S magnet requirement. The SAI accepts current AirTAC switches, whereas the legacy SI used CS1-B/DS1-B sensors. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding, consider an external pilot check valve or the SAIL/BSAI lock variant. Sizing options: this 32mm bore yields 402N push at 0.5MPa; stepping down is not standard, but a 40mm bore offers 628N if more force is needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X63S
- ✓ 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 SI32X63S FAQ
Yes, the SI32X63S is discontinued. The direct replacement is the AirTAC SAI32X63S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 63mm stroke, G1/8 port, output force and mounting accessories.
The 32mm bore features a G1/8 air port and M10x1.25 rod thread. It delivers 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum force of 82kgf at 1.0MPa.
Request a Quote for the SAI32X63S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X63S replacement — usually within 7-8 hours.