This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX500S, 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 SI32AX500S
The AirTAC SI32 Standard Air Cylinder SI32AX500S 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 SAI32AX500S, 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 → SAI32AX500S
- 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 SI32AX500S
The AirTAC SI32AX500S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore, 500 mm stroke, SUS420J2 stainless rod, and a piston magnet. It delivers 402 N push force at 0.5 MPa via a G1/8 port. AirTAC replaced this legacy unit with the SAI32AX500S, a direct upgrade retaining the exact ISO 15552 mounting interface, stroke, and force.
The SAI32AX500S features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line.
Airtac SI32 Standard Air Cylinder SI32AX500S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX500S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX500S |
| 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 SAI32AX500S 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 SAI32AX500S 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 SI32AX500S
| 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 SI32AX500S Is Used
Package Diverting
Sorts light cartons on packaging lines where the 20 kg vertical lift capacity and long stroke are utilised.
Stainless Rod Handling
The SUS420J2 rod suits washdown transfer gates in material handling, now upgraded via the SAI direct.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX500S with the SAI32AX500S
To replace the SI32AX500S, order the SAI32AX500S. Confirm the ISO 15552 mounting interface, 32 mm bore, 500 mm stroke, G1/8 port, and your specific mounting accessory. The SAI direct keeps the SUS420J2 stainless rod and -S magnet for current AirTAC switches. If you need more force, the neighbouring 40 mm bore offers 628 N push at 0.5 MPa; if less is required, there is no smaller ISO 15552 bore. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock or pilot check valve for load holding, or specify an SAIL/BSAI lock variant. At 500 mm stroke, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX500S
- ✓ 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 SI32AX500S FAQ
Yes, the AirTAC SI32AX500S is discontinued. The direct replacement is the SAI32AX500S. It shares the same ISO 15552 mounting interface, 32 mm bore, 500 mm stroke, force, G1/8 port, and mounting accessories, fitting existing fixtures perfectly.
This double-acting cylinder has a 32 mm bore, 12 mm rod, M10x1.25 thread, and a G1/8 port. It operates at 30-800 mm/s with a 27 mm cushion. Force ratings are 402 N push and 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX500S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX500S replacement — usually within 7-8 hours.