This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X500, 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 SI32X500
The AirTAC SI32 Standard Air Cylinder SI32X500 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 500mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X500, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke500 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X500
- 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 SI32X500
The AirTAC SI32X500 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 500mm stroke. Delivering 402N push force at 0.5MPa via a G1/8 port, it is replaced by the SAI32X500. This direct successor shares the exact interface, bore, stroke, force and mounting, fitting existing fixtures perfectly.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this non-magnet SKU cannot take a sensor; if you need position feedback, select a magnet-equipped version using CS1-B/DS1-B legacy switches.
Airtac SI32 Standard Air Cylinder SI32X500 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X500 |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAI32X500 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 SAI32X500 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 SI32X500
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×500 | 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 SI32X500 Is Used
Diverting Arms
Drives lightweight routing gates on packaging lines, utilizing the 500mm stroke to shift product lanes smoothly.
Replacing the Airtac SI32 Standard Air Cylinder SI32X500 with the SAI32X500
To replace the SI32X500, order the SAI32X500. Verify the ISO 15552 mounting interface, 32mm bore, 500mm stroke, G1/8 port (PT/G/NPT thread) and your mounting accessory (LB, FA, TC, etc.). This non-magnet SKU cannot accept a sensor. Sizing both ways: a 40mm bore offers 628N push at 0.5MPa, while dropping pressure to 0.4MPa yields 321N. Because 500mm is a long stroke, use an external guide to prevent rod bending and side-load wear. The cushion only decelerates; it does not hold load. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The SAIF variant adds a built-in valve (bores 32-100).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X500
- ✓ 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 SI32X500 FAQ
Yes, the SI32X500 is discontinued. The direct replacement is the SAI32X500, a current-production ISO 15552 profile cylinder. It shares the same 32mm bore, 500mm stroke, G1/8 port, output force and mounting interface, dropping straight into existing fixtures.
It features a G1/8 air port and M10x1.25 rod thread. Force outputs are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa. Operating speed is 30-800mm/s.
Request a Quote for the SAI32X500
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X500 replacement — usually within 7-8 hours.