This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX5S, 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 SI32AX5S
The AirTAC SI32 Standard Air Cylinder SI32AX5S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 5mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX5S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke5 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX5S
- 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 SI32AX5S
The AirTAC SI32AX5S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 5mm stroke. Delivering 402N push force at 0.5MPa, it features a G1/8 port and an SUS420J2 stainless steel rod. The direct replacement is the SAI32AX5S, matching the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting accessories.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF and BSAI variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32AX5S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX5S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX5S |
| Bore size | Ø32 mm |
| Stroke | 5 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 SAI32AX5S 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 SAI32AX5S 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 SI32AX5S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×5 | 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 SI32AX5S Is Used
Short-Stroke Clamping
Ideal for holding small machined parts in CNC fixtures using its 402N push force over a compact 5mm travel.
Ejector Pins
Provides rapid part ejection in automated assembly lines, benefiting from the 30-800mm/s speed range.
Lab Positioning
Suitable for precise sensor or sample positioning where the SUS420J2 stainless rod resists corrosion.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX5S with the SAI32AX5S
To replace the SI32AX5S, order the SAI32AX5S. Confirm the ISO 15552 interface, 32mm bore, 5mm stroke, G1/8 port, and mounting accessory. The -S magnet enables CS1-B/DS1-B switches (the SAI uses current AirTAC switches), and the -A rod is SUS420J2 stainless steel. Sizing both ways: a 40mm bore offers 628N @0.5MPa, while dropping to a smaller bore reduces force. This plain cylinder does not hold load without live air; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX5S
- ✓ 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 SI32AX5S FAQ
Yes, the SI32AX5S is discontinued. The direct replacement is the SAI32AX5S, which shares the identical ISO 15552 mounting interface, 32mm bore, 5mm stroke, output force, G1/8 port and mounting.
It has a G1/8 port. The force ratings are: 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Request a Quote for the SAI32AX5S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX5S replacement — usually within 7-8 hours.