This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X350, 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 SID Series Double-Rod Cylinder SID32X350 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 350mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X350, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID32X350 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal both ways (345 N @0.5 MPa). Because both faces use the identical rod-side area, you get true bidirectional power without the unequal thrust of single-rod designs. This 32 mm bore, 350 mm stroke model is discontinued, replaced directly by the SAID32X350 direct upgrade—matching the G1/8 port, M10x1.25 rod thread, 27 mm cushion, and ISO 15552 mounting interface.
The SAI upgrade uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. A second rod can carry a sensor cam or drive two tools simultaneously with anti-rotation stability. Note this SKU lacks a -S magnet and cannot take a sensor. The air cushion only decelerates near stroke end; it does not hold loads on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID32X350 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X350 |
| Bore size | Ø32 mm |
| Stroke | 350 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 SAID32X350 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 SAID32X350 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. |
| ×350 | 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).
Simultaneously drives two opposing pick-and-place grippers, utilizing the equal both ways force to maintain synchronous tool acceleration and deceleration.
Centers and clamps thin workpieces from both sides evenly, ensuring the part does not shift laterally because the extension and retraction forces are identical.
To replace the discontinued SID32X350, install the SAID32X350 direct: it preserves the 32 mm bore, 350 mm stroke, equal both ways force, G1/8 port, and ISO 15552 mounting footprint (Basic, FA, LB, TC). When sizing both ways, verify the 345 N @0.5 MPa thrust fits your payload, or step to a 40 mm bore neighbour for higher force. A double rod is right when you need anti-rotation resistance or must drive two mechanisms from one cylinder. Because this stroke is 350 mm, add external guides to prevent rod bending under side loads. This non-magnetic SKU cannot support switches; choose an -S model if you need legacy CS1-B/DS1-B sensor accuracy.
Replacement checklist
Yes, the SID32X350 is discontinued. The direct replacement is the SAID32X350, which matches the 32 mm bore, 350 mm stroke, G1/8 port, and ISO 15552 mounting interface. The SAI family also adds an upgraded piston seal and SAIL/BSAI lock variants.
The double-rod design provides equal force both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. Operating speed is 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X350 replacement — usually within 7-8 hours.