This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X300, 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 SID32X300 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 300mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X300, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID32X300 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making push and pull force equal at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. This model is discontinued; the direct replacement is the SAID32X300, matching the 32 mm bore, 300 mm stroke, G1/8 port, 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.
Because both faces use the rod-side area, the back rod can carry a sensor cam or drive two tools with anti-rotation stability, though this no-magnet SKU cannot take a switch. Note that a plain cylinder drifts on air loss; the 27 mm adjustable air cushion only decelerates near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID32X300 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X300 |
| Bore size | Ø32 mm |
| Stroke | 300 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 SAID32X300 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 SAID32X300 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. |
| ×300 | 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).
Drives two opposing tools simultaneously from one piston, leveraging the equal both-ways 345 N @0.5 MPa force for perfectly balanced machining or clamping operations.
The twin-rod architecture prevents mechanical twist during lateral part transfers on a conveyor, maintaining strict alignment without external guide shafts.
To replace the discontinued SID32X300, specify the SAID32X300 to reuse the existing ISO 15552 mounting (Basic, FA, LB, TC) without bracket changes. Size both ways by checking neighbour bores; the 32 mm bore delivers equal both-ways force of 483 N @0.7 MPa, so verify if a 40 mm bore is needed for higher loads. A double rod is right when you need anti-rotation stability or must drive two tools. This SKU lacks the -S magnet and cannot take a sensor. For the 300 mm stroke, add external guides to prevent rod bending under side-load. Operating pressure is 0.15-1.0 MPa, with a Viton H seal option for up to 150 C.
Replacement checklist
Yes, the SID32X300 is discontinued. The direct replacement is the SAID32X300, matching the 32 mm bore, 300 mm stroke, G1/8 port, and ISO 15552 mounting. The SAI family also adds SAIL and BSAI lock variants the SI line lacked.
Force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. Speed is 30-800 mm/s. The air port is G1/8, rod thread is M10x1.25, and adjustable cushion is 27 mm. The cylinder does not hold loads on air loss; use an external rod lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X300 replacement — usually within 7-8 hours.