This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X530S, 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 SI32X530S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 530mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X530S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI32X530S is a discontinued double-acting ISO 15552 profile cylinder with a 32 mm bore and 530 mm stroke. It delivers 402 N push force at 0.5 MPa via a G1/8 port. The direct replacement is the SAI32X530S, matching the exact bore, stroke, force, port and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family adds SAIL, SAIF and BSAI variants the SI lacked. The original -S magnet works with CS1-B/DS1-B sensors.
| Model | Airtac SI32 Standard Air Cylinder SI32X530S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X530S |
| Bore size | Ø32 mm |
| Stroke | 530 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 SAI32X530S 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 SAI32X530S 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. |
| ×530 | 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).
Pushes small molded components off a belt using 402 N push force, with the 530 mm reach clearing wide machinery.
Actuates a diverter arm across packaging lanes, relying on the magnetic piston and CS1-B sensors for position feedback.
Drives a small end-effector over a 530 mm span to pick parts, requiring external guides to prevent rod bending.
To replace the SI32X530S, order the SAI32X530S. Confirm the ISO 15552 mounting interface (LB, FA, TC, etc.), the G1/8 port thread (PT/G/NPT) and the magnet. The 32 mm bore yields 402 N push at 0.5 MPa; sizing down is not an option, while sizing up to 40 mm increases force to 628 N. Air cushions only decelerate the piston; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variant. At 530 mm, prevent rod bending by using an external guide to absorb side loads.
Replacement checklist
Yes, the SI32X530S is discontinued. The direct replacement is the SAI32X530S. It shares the same ISO 15552 mounting interface, 32 mm bore, 530 mm stroke, output force and G1/8 port, fitting existing fixtures perfectly.
This double-acting cylinder operates at 30-800 mm/s with a G1/8 port. Force ratings are 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a maximum theoretical force of 82 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X530S replacement — usually within 7-8 hours.