This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X465S, 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 SI32X465S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 465mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X465S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X465S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 465 mm stroke. Delivering 402 N push force at 0.5 MPa via a G1/8 port, it is replaced by the SAI32X465S. This direct upgrade shares the exact mounting interface, bore, stroke, force, and accessories.
The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The -S suffix means it has a piston magnet for CS1-B/DS1-B switches; SAI uses current AirTAC switches. SAIL, SAIF, and BSAI variants expand the family.
| Model | Airtac SI32 Standard Air Cylinder SI32X465S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X465S |
| Bore size | Ø32 mm |
| Stroke | 465 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 SAI32X465S 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 SAI32X465S 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. |
| ×465 | 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 to eject small machined parts from a fixture, fitting neatly into tight tooling spaces.
Actuates a diverting gate on a conveyor line, where the 465 mm stroke pushes light cartons to a secondary lane.
Sorts lightweight inventory trays using the CS1-B/DS1-B magnet sensors to confirm full extension at 465 mm.
To replace the SI32X465S, order the SAI32X465S. Confirm the ISO 15552 interface, 32 mm bore, 465 mm stroke, G1/8 port (PT/G/NPT thread options), M10x1.25 rod thread, and mounting accessory (LB, FA, TC, etc.). The built-in magnet (-S) allows position sensing. For sizing, a 40 mm bore offers 628 N push at 0.5 MPa if more force is needed, while the 32 mm bore is optimal for lighter loads. Note: a plain cylinder drifts on air loss—the 27 mm air cushions only decelerate near stroke end. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 465 mm stroke, prevent rod bending by guiding the load externally to avoid side loads.
Replacement checklist
Yes, the SI32X465S is discontinued. The direct replacement is the SAI32X465S. It is dimensionally interchangeable per ISO 15552, retaining the same 32 mm bore, 465 mm stroke, 402 N force, G1/8 port, and mounting fixtures.
At 0.5 MPa it provides 402 N push and 345 N pull force. At 0.7 MPa push is 563 N, and at 0.9 MPa it is 724 N. The theoretical max force is 82 kgf at 1.0 MPa. It operates at 30-800 mm/s, uses a G1/8 port, and has a 27 mm adjustable cushion at both ends.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X465S replacement — usually within 7-8 hours.