This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX350, 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 SI32AX350
The AirTAC SI32 Standard Air Cylinder SI32AX350 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 350mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX350, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke350 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX350
- 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 SI32AX350
The AirTAC SI32AX350 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 350 mm stroke. Built with an extruded aluminum barrel, it delivers 402 N push force at 0.5 MPa and features a G1/8 port. As this SKU lacks the -S magnet suffix, it cannot accept a position sensor.
You should order the direct replacement SAI32AX350, which shares the exact ISO 15552 mounting interface, bore, stroke, output force, and port size. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure, and adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI32 Standard Air Cylinder SI32AX350 Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX350 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX350 |
| Bore size | Ø32 mm |
| Stroke | 350 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 SAI32AX350 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 SAI32AX350 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 SI32AX350
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×350 | 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 SI32AX350 Is Used
Small Part Ejection
Uses the 402 N push force at 0.5 MPa to eject light machined components from a fixture reliably.
Package Diverting
Extends 350 mm to push light cartons between conveyor lanes without overwhelming the system.
Material Sorting
Actuates sorting gates for small totes, utilizing the 20 kg safe vertical lift capacity.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX350 with the SAI32AX350
To replace this SI32AX350, order the SAI32AX350. Verify the ISO 15552 mounting interface, the 350 mm stroke, the G1/8 port (PT/G/NPT thread options), and your mounting accessory. Because this specific SKU lacks a magnet, it cannot support sensing; if you need switches, select an SAI32AX350S and use current AirTAC sensors. If sizing up or down, neighboring bores offer different force classes, but at 0.5 MPa this 32 mm bore provides 402 N push and 345 N pull. Note that 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 variant. Finally, at 350 mm stroke, prevent rod bending by guiding the load externally to avoid side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX350
- ✓ 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 SI32AX350 FAQ
Yes, the SI32AX350 is discontinued. The direct replacement is the SAI32AX350. It shares the same ISO 15552 mounting interface, 32 mm bore, 350 mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly.
This 32 mm bore cylinder features a G1/8 port, a 12 mm rod, and M10x1.25 rod thread. Force output is 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, with a theoretical max of 82 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX350
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX350 replacement — usually within 7-8 hours.