This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X100FA, 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 Airtac SI32 Standard Air Cylinder SI32X100FA 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 SAI32X100FA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X100FA is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 100 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32X100FA, retaining the exact FA flange mounting, M10x1.25 rod thread, and 27 mm cushions.
Upgrading to the SAI introduces a two Y-shaped one-way piston seal for low start-up pressure. For sensing, this specific no-magnet SKU cannot accept a switch. The SAI family also adds SAIF valve and SAIL lock variants.
| Model | Airtac SI32 Standard Air Cylinder SI32X100FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X100FA |
| 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 SAI32X100FA 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 SAI32X100FA 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 402 N push force at 0.5 MPa to reliably push lightweight machined components out of a fixture.
Actuates a short 100 mm stroke diverter arm to route small boxes on a packaging line at up to 800 mm/s.
Secures thin workpieces in a welding jig using the FA flange mount to handle the 345 N pull force.
To replace the SI32X100FA, order the SAI32X100FA ensuring the ISO 15552 FA flange interface, 32 mm bore, 100 mm stroke, and G1/8 port match your fixture. Because this SKU lacks a magnet, it cannot take a sensor; if position detection is needed, select an SAI32X100FAS. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external pilot check valve or the SAIL lock variant. If sizing up, the 40 mm bore yields 628 N at 0.5 MPa; if sizing down, note the 32 mm bore is the smallest standard option. For this 100 mm stroke, side-load is minimal, but always guide the rod.
Replacement checklist
Yes, the SI32X100FA is discontinued. The direct replacement is the SAI32X100FA. It is dimensionally interchangeable per ISO 15552, maintaining the same 32 mm bore, 100 mm stroke, G1/8 port, and FA flange mounting interface.
The 32 mm bore features a G1/8 port and provides 402 N push and 345 N pull at 0.5 MPa. It delivers 563 N push at 0.7 MPa, 724 N push at 0.9 MPa, and a theoretical max of 82 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X100FA replacement — usually within 7-8 hours.