This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX105, 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.

The AirTAC SI32 Standard Air Cylinder SI32AX105 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 105mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX105, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX105 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore, 105mm stroke, and SUS420J2 stainless steel rod. Delivering 402N push force at 0.5MPa, it is replaced by the SAI32AX105. This direct upgrade retains the G1/8 port and mounting interface, fitting existing fixtures perfectly.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot take CS1-B/DS1-B sensors.
| Model | Airtac SI32 Standard Air Cylinder SI32AX105 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX105 |
| Bore size | Ø32 mm |
| Stroke | 105 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 SAI32AX105 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32AX105 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×105 | 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).
Ideal for small fixture clamping in humid zones using the SUS420J2 rod, providing 402N push force at 0.5 MPa.
The 105mm nonstandard stroke handles short-travel ejection of light components within tight ISO 15552 machine envelopes.
To replace the SI32AX105, order the SAI32AX105. Confirm the ISO 15552 mounting interface, 32mm bore, 105mm stroke, G1/8 port, and SUS420J2 rod. Since this is a nonstandard 105mm stroke, expect a longer lead time. If sizing up, the 40mm bore offers 628N push at 0.5MPa; if down-sizing, verify your load. The 105mm stroke is short, so side-load risks are minimal, but always guide the load. This no-magnet SKU cannot accept position sensors; order an -S variant if you need CS1-B/DS1-B switches. A plain cylinder drifts on air loss, so use an external rod lock or pilot check valve for load holding, or explore the SAIL lock or BSAI clamp-lock variants.
Replacement checklist
Yes, the SI32AX105 is discontinued. The direct replacement is the SAI32AX105. It shares the same ISO 15552 mounting interface, 32mm bore, 105mm stroke, G1/8 port, and output force, fitting your existing fixtures perfectly.
The 32mm bore features a G1/8 port. Force output is 402N push and 345N pull at 0.5 MPa, 563N push at 0.7 MPa, 724N push at 0.9 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX105 replacement — usually within 7-8 hours.