This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X25S, 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 SID32X25S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 25mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X25S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID32X25S is a discontinued 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. It features a 32 mm bore, 25 mm stroke, 12 mm rod, M10x1.25 thread, G1/8 port, and 27 mm adjustable cushions. The direct replacement is the SAID32X25S, reusing the same mounting interface and adding an upgraded two Y-shaped one-way piston seal for lower start-up pressure.
Because both faces use the rod-side area, the back rod can carry a sensor cam or drive two tools without force loss. With the -S magnet, legacy CS1-B/DS1-B switches track position. A plain cylinder does not hold loads on air loss; cushions only decelerate near stroke end, so use an external rod lock or SAIL/BSAI variant for held loads.
| Model | Airtac SID Series Double-Rod Cylinder SID32X25S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X25S |
| Bore size | Ø32 mm |
| Stroke | 25 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 SAID32X25S 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 SAID32X25S 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. |
| ×25 | 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 grippers simultaneously using both rod ends, ensuring equal 345 N force during part transfer without requiring a secondary cylinder.
Pushes items left or right on a conveyor belt with identical 483 N @0.7 MPa force in both directions, maintaining consistent diverting speed.
Uses the double-rod architecture to prevent mechanical twisting during short 25 mm clamping tasks, keeping the tool plate perfectly parallel.
Replace the discontinued SID32X25S directly with the SAID32X25S, retaining the genuine ISO 15552 mounting interface, G1/8 port, and 25 mm stroke. Size both ways by checking equal force: this 32 mm bore delivers 345 N @0.5 MPa, so if more power is needed, step up to the 40 mm bore (528 N) rather than guessing. Choose a double-rod cylinder when you need anti-rotation stability, equal push/pull power, or a back rod to mount a sensor cam. Mounting options include Basic, FA, LB, and TC brackets. The -S suffix indicates a piston magnet for legacy CS1-B/DS1-B switches; no-S means no sensor. Since the stroke is under 300 mm, side-load lever arm stress is minimal, but always confirm rod end thread M10x1.25 alignment.
Replacement checklist
Yes, the SID32X25S is discontinued. The direct replacement is the SAID32X25S. It shares the same ISO 15552 interface, 32 mm bore, 25 mm stroke, G1/8 port, and mounting dimensions, while adding an upgraded piston seal.
Because it is a double-rod cylinder, force is equal both ways: 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. The fixed air port is G1/8, the rod is 12 mm with an M10x1.25 thread, and speed ranges 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X25S replacement — usually within 7-8 hours.