This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX100, 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 SI32AX100 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 100mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX100, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32AX100 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 100mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX100, matching the interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This SKU lacks a magnet (-S) so it cannot take a sensor. The SUS420J2 stainless rod resists corrosion, and a Viton H seal raises heat to 150C.
| Model | Airtac SI32 Standard Air Cylinder SI32AX100 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX100 |
| Bore size | Ø32 mm |
| Stroke | 100 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 SAI32AX100 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 SAI32AX100 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. |
| ×100 | 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 402N push force at 0.5MPa to eject small molded components from a fixture reliably.
Secures delicate workpieces during machining, utilizing the 345N pull force for safe hold.
Powers low-friction diverting arms on a conveyor, benefiting from the 30-800mm/s speed range.
To replace the SI32AX100, order the SAI32AX100. Verify the ISO 15552 mounting interface, 100mm stroke, G1/8 port, and M10x1.25 thread. Since this SKU lacks a magnet, it cannot accept CS1-B/DS1-B sensors. If you need to hold a load vertically without live air, the cushion only decelerates; use an external pilot check valve or the SAIL/BSAI lock variant. For higher force, the 40mm bore yields 628N [email protected]. For lighter duty, confirm specs. The SAI family also adds the SAIF self-valve option (bores 32-100).
Replacement checklist
Yes, the SI32AX100 is discontinued. The direct replacement is the SAI32AX100. It is dimensionally interchangeable per ISO 15552, retaining the same 32mm bore, 100mm stroke, G1/8 port, and mounting interface.
It features a G1/8 port. Force output is 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical max of 82kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX100 replacement — usually within 7-8 hours.