This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X455S, 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 SI32X455S
The AirTAC SI32 Standard Air Cylinder SI32X455S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 455mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X455S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke455 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X455S
- 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 SI32X455S
The AirTAC SI32X455S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 455mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is directly replaced by the SAI32X455S. This direct upgrade shares the exact mounting interface, bore, and output force.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure and long life. The SI's built-in magnet supports legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI32 Standard Air Cylinder SI32X455S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X455S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X455S |
| Bore size | Ø32 mm |
| Stroke | 455 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 SAI32X455S 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 SAI32X455S 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 SI32X455S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×455 | 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 SI32X455S Is Used
Small Parts Ejection
Uses the 402N push force to eject light machined components from a fixture reliably over the 455mm travel.
Package Diverting
Actuates a diverting gate on a packaging line, where the compact 32mm bore and G1/8 port fit tight spaces.
Replacing the Airtac SI32 Standard Air Cylinder SI32X455S with the SAI32X455S
To replace the SI32X455S, order the SAI32X455S. Confirm the ISO 15552 mounting interface, 32mm bore, 455mm stroke, G1/8 port (PT/G/NPT thread), and the -S magnet for positioning. If you need more force, the neighboring 40mm bore yields 628N push at 0.5MPa; if less is acceptable, consider downsizing. Because this is a 455mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X455S
- ✓ 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 SI32X455S FAQ
Yes, the SI32X455S is discontinued. The direct replacement is the AirTAC SAI32X455S. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 455mm stroke, output force, G1/8 port, and mounting accessories.
The 32mm bore features a G1/8 air port and an 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X455S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X455S replacement — usually within 7-8 hours.