This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX350S, 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 SI32AX350S
The AirTAC SI32 Standard Air Cylinder SI32AX350S 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 SAI32AX350S, 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 → SAI32AX350S
- 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 SI32AX350S
The AirTAC SI32AX350S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore, 350 mm stroke, and a SUS420J2 stainless steel rod. Delivering 402 N push force at 0.5 MPa, it features a built-in piston magnet for CS1-B/DS1-B sensors and a G1/8 port. AirTAC replaced this EOL unit with the SAI32AX350S, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, and force.
The SAI successor introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. If you need load holding on air loss, note that standard cushions only decelerate; you must use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Airtac SI32 Standard Air Cylinder SI32AX350S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX350S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX350S |
| 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 SAI32AX350S 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 SAI32AX350S 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 SI32AX350S
| 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 SI32AX350S Is Used
Compact Part Ejection
Uses the 402 N push force at 0.5 MPa to eject small machined aluminium parts from a fixture, with the 350 mm stroke clearing the work envelope entirely.
Lightweight Diverting
Actuates a lightweight sorting flap on a conveyor line, where the 20 kg vertical lift capacity handles package flap weight and the SUS420J2 rod resists humidity.
Lab Sample Handling
Moves sample trays using the 350 mm travel distance, relying on the adjustable 27 mm air cushions to decelerate smoothly without jarring sensitive materials.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX350S with the SAI32AX350S
To replace the SI32AX350S, order the SAI32AX350S. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G1/8 port, and the -S magnet for current AirTAC switches. The -A rod denotes SUS420J2 stainless steel; confirm if you need the default carbon steel or SUS304. For 350 mm strokes, prevent rod bending by using external guides to absorb side loads. If neighbouring bores fit your fixture, a 40 mm bore offers 628 N push at 0.5 MPa. Remember, a plain cylinder drifts without live air; for held loads, explore the SAIL or BSAI lock variants, or add a pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX350S
- ✓ 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 SI32AX350S FAQ
Yes, the SI32AX350S is discontinued. The direct replacement is the SAI32AX350S. It shares the identical ISO 15552 mounting interface, 32 mm bore, 350 mm stroke, output force, and G1/8 port, fitting existing fixtures perfectly while upgrading the piston seal.
It has a G1/8 air port. The force ratings are 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, and a theoretical maximum of 82 kgf at 1.0 MPa. It operates at 30-800 mm/s with a 27 mm adjustable cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX350S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX350S replacement — usually within 7-8 hours.