This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X30, 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 SI32X30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 30mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X30, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X30 is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 30mm stroke, delivering 402N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI32X30. This current-production direct maintains the exact same ISO 15552 mounting interface, bore, stroke, force, G1/8 port and accessories, fitting existing fixtures perfectly. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Note that this specific SKU lacks a magnet (-S), meaning it cannot accept CS1-B or DS1-B sensors. The SAI family also introduces variants the SI line lacked, such as the SAIL air-released lock, SAIF built-in 4M valve, and BSAI clamp-lock.
| Model | Airtac SI32 Standard Air Cylinder SI32X30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X30 |
| Bore size | Ø32 mm |
| Stroke | 30 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 SAI32X30 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 SAI32X30 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. |
| ×30 | 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 pushing lightweight machined components out of fixtures using its 402N thrust at 0.5 MPa.
Provides reliable short-stroke clamping force for holding thin materials or sheet metal in assembly jigs.
Actuates small pneumatic diverter gates in packaging lines with a fast 30-800mm/s speed range.
To replace the SI32X30, order the SAI32X30 direct equivalent, verifying your ISO 15552 mounting accessory (LB, FA, TC, etc.), 30mm stroke, and G1/8 port (PT/G/NPT thread options). Because this non-magnetic SKU lacks a piston band, it cannot support position sensing; order an SAI32X30S if you need switches. Sizing both ways: this 32mm bore yields 402N push at 0.5 MPa, but if you need less force, consider the smaller bore options, or step up to the 40mm bore (628N push) for heavier loads. A plain cylinder does not hold load on air loss—the cushion only decelerates—so for suspended loads use an external pilot check valve or the SAIL/BSAI lock variants. Even at 30mm stroke, ensure proper alignment to avoid rod-bending side loads.
Replacement checklist
Yes, the SI32X30 is discontinued. The direct replacement is the AirTAC SAI32X30. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 30mm stroke, G1/8 port, and mounting interface, so it drops directly into existing fixtures.
This double-acting cylinder has a G1/8 air port. It delivers 402N push and 345N pull at 0.5 MPa, 563N push at 0.7 MPa, 724N push at 0.9 MPa, and a theoretical maximum force of 82kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X30 replacement — usually within 7-8 hours.