This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X450, 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 SI32X450
The AirTAC SI32 Standard Air Cylinder SI32X450 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 SAI32X450, 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 → SAI32X450
- 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 SI32X450
The AirTAC SI32X450 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 450 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32X450, matching the interface, bore, stroke, force, port and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Note this non-magnet SKU cannot take a sensor; legacy CS1-B/DS1-B switches require the -S version.
Airtac SI32 Standard Air Cylinder SI32X450 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X450 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X450 |
| 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 SAI32X450 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 SAI32X450 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 SI32X450
| 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 SI32X450 Is Used
Pneumatic Ejection
Cycles at 30-800 mm/s to eject light finished goods from a machining zone, relying on the 27 mm adjustable cushion for smooth stops.
Replacing the Airtac SI32 Standard Air Cylinder SI32X450 with the SAI32X450
To replace the SI32X450, order the SAI32X450. Verify the ISO 15552 mounting interface, 32 mm bore, 450 mm stroke, G1/8 port (PT/G/NPT thread options) and your mounting accessory. This non-magnet SKU cannot accept a sensor; if position detection is needed, select the SAI32X450S. Sizing both ways: a 40 mm bore offers 628 N push at 0.5 MPa, while dropping to a 25 mm bore reduces force. A plain cylinder drifts on air loss—the cushion only decelerates—so use a pilot check valve or SAIL lock variant to hold loads. For the 450 mm stroke, use an external guide to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X450
- ✓ 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 SI32X450 FAQ
Yes, the SI32X450 is discontinued. The direct replacement is the SAI32X450. It is dimensionally interchangeable per ISO 15552, keeping the same 32 mm bore, 450 mm stroke, 402 N force, G1/8 port and mounting interface.
This 32 mm bore cylinder has a G1/8 port and provides 402 N push / 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical max of 82 kgf at 1.0 MPa. The SAI replacement upgrades the piston seal while retaining these exact ratings.
Request a Quote for the SAI32X450
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X450 replacement — usually within 7-8 hours.