This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X475S, 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 SI32X475S
The AirTAC SI32 Standard Air Cylinder SI32X475S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 475mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X475S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke475 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X475S
- 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 SI32X475S
The AirTAC SI32X475S is a discontinued double-acting ISO 15552 profile cylinder featuring a 32 mm bore, 475 mm stroke, and a G1/8 port. Delivering 402 N of push force at 0.5 MPa, it is directly replaced by the SAI32X475S. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, output force, and accessories, fitting existing fixtures perfectly.
The SAI replacement upgrades longevity with two Y-shaped one-way piston seals for low start-up pressure. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line. The built-in magnet supports CS1-B/DS1-B switches, while Viton H seals expand temperature limits to 150 C.
Airtac SI32 Standard Air Cylinder SI32X475S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X475S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X475S |
| Bore size | Ø32 mm |
| Stroke | 475 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 SAI32X475S 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 SAI32X475S 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 SI32X475S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×475 | 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 SI32X475S Is Used
Light-Part Ejection
Ideal for pushing small molded components out of fixtures using its 402 N push force and 475 mm reach.
Package Diverting
Sort or divert light boxes on a line where a 20 kg vertical lift capacity and long stroke are required.
Material Transfer
Moves lightweight pallets or trays between zones with a compact 32 mm bore and G1/8 porting.
Replacing the Airtac SI32 Standard Air Cylinder SI32X475S with the SAI32X475S
To replace the SI32X475S, order the SAI32X475S and confirm the ISO 15552 mounting interface, 32 mm bore, 475 mm stroke, G1/8 port, and your specific mounting accessory. The built-in magnet (-S) works with legacy CS1-B/DS1-B sensors, though the SAI uses current AirTAC switches. For sizing, a 40 mm bore offers 628 N push at 0.5 MPa if more force is needed, while the 32 mm bore is optimal for tight spaces. Remember, a plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Because the 475 mm stroke is long, use external guides to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X475S
- ✓ 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 SI32X475S FAQ
Yes, the SI32X475S is discontinued. The direct replacement is the SAI32X475S. It is dimensionally interchangeable per ISO 15552, matching the 32 mm bore, 475 mm stroke, force, G1/8 port, and mounting interface.
This double-acting cylinder has a G1/8 port. It delivers a push force of 402 N and a pull force of 345 N at 0.5 MPa. At 0.7 MPa, the push force is 563 N, and the theoretical maximum is 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X475S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X475S replacement — usually within 7-8 hours.