This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X100CA, 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 SI32X100CA 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 SAI32X100CA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X100CA is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 100 mm stroke. Delivering 402 N push force at 0.5 MPa via a G1/8 port, it is replaced by the SAI32X100CA. This direct successor shares the exact same ISO 15552 mounting interface, bore, stroke, force, port and CA clevis accessory, fitting existing fixtures perfectly.
The SAI upgrade features a revised piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks the -S magnet, so it cannot accept a CS1-B/DS1-B sensor. The SAI family also adds SAIL, SAIF and BSAI lock variants the SI lacked.
| Model | Airtac SI32 Standard Air Cylinder SI32X100CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X100CA |
| 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 SAI32X100CA 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 SAI32X100CA 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).
Ideal for pushing lightweight machined components out of a fixture using the 402 N push force at 0.5 MPa.
Actuates a routing gate on a 30-800 mm/s packaging line, handling small cartons via the CA clevis mount.
To replace the SI32X100CA, order the SAI32X100CA. Confirm the ISO 15552 interface, 32 mm bore, 100 mm stroke, G1/8 port (PT/G/NPT thread options) and CA clevis mounting. Because this specific SKU has no -S magnet, it cannot support position sensing. For sizing, neighbouring bores like 40 mm offer higher force (628 N push @0.5 MPa), while dropping to 25 mm lowers it. Note that a plain cylinder drifts on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The 100 mm stroke is well within standard limits, so no side-load guide is required.
Replacement checklist
Yes, the SI32X100CA is discontinued. The direct replacement is the SAI32X100CA. It shares the same ISO 15552 mounting interface, 32 mm bore, 100 mm stroke, output force, G1/8 port and CA clevis mounting, fitting directly into existing machinery.
This double-acting 32 mm bore cylinder uses a G1/8 air port. It delivers a push force of 402 N and pull of 345 N at 0.5 MPa, 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 SAI32X100CA replacement — usually within 7-8 hours.