This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X80CA, 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 SI32X80CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 80mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X80CA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X80CA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and a CA clevis mount. Generating 402 N push force at 0.5 MPa via a G1/8 port, it is replaced by the SAI32X80CA. This direct successor matches the bore, stroke, force, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also introduces SAIL, SAIF, and BSAI variants the SI lacked. Note this specific SKU lacks a magnet and cannot accept a sensor.
| Model | Airtac SI32 Standard Air Cylinder SI32X80CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X80CA |
| Bore size | Ø32 mm |
| Stroke | 80 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 SAI32X80CA 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 SAI32X80CA 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. |
| ×80 | 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 on an assembly line.
The 80 mm stroke actuates a diverter arm to route small boxes, fitting within the 20 kg safe vertical lift capacity.
Secures workpieces via the CA clevis mount, providing precise clamping force for light material holding in machining.
To replace the SI32X80CA, order the SAI32X80CA keeping the CA clevis mount, 32 mm bore, 80 mm stroke, and G1/8 port. Because this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B switches; order a magnet-equipped SAI if sensing is needed. For sizing, a 40 mm bore yields 628 N push at 0.5 MPa, while dropping to a smaller bore reduces force. Remember a plain cylinder drifts on air loss; the 27 mm cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. Rod material options include carbon steel, SUS420J2 (A), or SUS304 (B).
Replacement checklist
Yes, the SI32X80CA is discontinued. The direct replacement is the SAI32X80CA, which shares the same ISO 15552 mounting interface, 32 mm bore, 80 mm stroke, force, and G1/8 port.
It features a G1/8 port and generates 402 N push / 345 N pull at 0.5 MPa, 563 N push at 0.7 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 SAI32X80CA replacement — usually within 7-8 hours.