This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X105, 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 SI32X105 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 SAI32X105, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X105 is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 105 mm stroke. It delivers 402 N push force at 0.5 MPa through a G1/8 port. The direct replacement is the SAI32X105, matching the interface, bore, stroke, force and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors. For load holding, use the SAIL lock or BSAI clamp-lock variants, as cushions only decelerate.
| Model | Airtac SI32 Standard Air Cylinder SI32X105 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X105 |
| 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 SAI32X105 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 SAI32X105 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).
Uses the 402 N push force at 0.5 MPa to reliably push lightweight machined components out of a fixture.
Secures small workpieces in automated assembly cells where the 32 mm bore and 105 mm stroke fit tight spaces.
Actuates small sorting gates on a conveyor belt, taking advantage of the 30-800 mm/s speed range.
To replace the SI32X105, order the SAI32X105. Verify the ISO 15552 mounting interface, 32 mm bore, 105 mm stroke, G1/8 port (PT/G/NPT) and mounting accessory. Because this SKU has no -S magnet, it cannot support position sensing; add the -S suffix if you need CS1-B/DS1-B switches. If you need more force, the neighbouring 40 mm bore offers 628 N push at 0.5 MPa. A plain cylinder drifts on air loss; for held loads, specify the SAIL or BSAI lock variant, or use an external pilot check valve. The 105 mm stroke is under 300 mm, so rod-bending side loads are minimal, but linear guides are still recommended for off-center loads.
Replacement checklist
Yes, the SI32X105 is discontinued. The direct replacement is the SAI32X105. It is dimensionally interchangeable per ISO 15552, keeping the same 32 mm bore, 105 mm stroke, output force, G1/8 port and mounting interface.
The 32 mm bore provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-800 mm/s, and it uses a G1/8 port with a 12 mm rod.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X105 replacement — usually within 7-8 hours.