This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX450S, 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 SI32AX450S
The AirTAC SI32 Standard Air Cylinder SI32AX450S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 450mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX450S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX450S
- 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 SI32AX450S
The AirTAC SI32AX450S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 450mm stroke. It delivers 402N push at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX450S, matching the interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. This -A variant uses a SUS420J2 stainless rod, and the -S magnet pairs with CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32AX450S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX450S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX450S |
| Bore size | Ø32 mm |
| Stroke | 450 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 SAI32AX450S 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 SAI32AX450S 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 SI32AX450S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×450 | 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 SI32AX450S Is Used
Light Part Ejection
Ideal for pushing small machined components out of CNC fixtures, utilizing the 402N push force and SUS420J2 stainless rod for corrosion resistance.
Vertical Lift Stops
Suitable for lifting or stopping light tote bins up to 20kg in vertical handling systems, operating at speeds between 30-800 mm/s.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX450S with the SAI32AX450S
To replace the SI32AX450S, order the SAI32AX450S. Confirm the ISO 15552 mounting interface, 450mm stroke, G1/8 port, and mounting accessory. The SAI drops into existing fixtures. If sizing up, a 40mm bore gives 628N push at 0.5MPa; sizing down is not recommended below 32mm for this load. Note: a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 450mm stroke, use external guides to prevent rod bending and side-load wear. The -S magnet works with CS1-B/DS1-B switches; the SAI uses current AirTAC switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX450S
- ✓ 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 SI32AX450S FAQ
Yes, the SI32AX450S is discontinued. The direct replacement is the SAI32AX450S. It is dimensionally interchangeable per ISO 15552, maintaining the same 32mm bore, 450mm stroke, G1/8 port, and mounting interface.
This 32mm bore cylinder features a G1/8 air port and provides 402N push / 345N pull at 0.5 MPa, 563N push at 0.7 MPa, 724N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa. It uses an M10x1.25 rod thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX450S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX450S replacement — usually within 7-8 hours.