This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID32X500, 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 SID32X500 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 500mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID32X500, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID32X500 is a double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston, making the push and pull force equal at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. This 32 mm bore model has a 12 mm rod, M10x1.25 rod-end thread, G1/8 air port, and 27 mm adjustable air cushions at each end. The SID line is discontinued; the direct replacement is the SAID32X500, sharing the same interface, 500 mm stroke, and mounting. The SAI upgrade uses a two Y-shaped one-way piston seal 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. This SKU lacks the -S magnet and cannot take a magnetic switch. A plain cylinder does not hold loads on air loss; the 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 SID32X500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID32X500 |
| Bore size | Ø32 mm |
| Stroke | 500 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 SAID32X500 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 SAID32X500 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. |
| ×500 | 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 a shuttle carriage back and forth with identical 345 N force both ways at 0.5 MPa, ensuring consistent dwell times in both directions.
The extending rear rod operates a secondary gripper or clamp opposite the primary tool, saving space and keeping dynamics balanced.
To replace the discontinued SID32X500, install the direct replacement SAID32X500, which preserves the ISO 15552 mounting interface, 500 mm stroke, and G1/8 port. Size both ways by checking equal force: this 32 mm bore provides 345 N @0.5 MPa, so if more force is needed, step up to the 40 mm bore (528 N @0.5 MPa). A double-rod design is right when you need equal push/pull force, anti-rotation stability, or a back rod to drive a second tool. Reuse FA, LB, or TC mounts directly. For the 500 mm stroke, use external guides to prevent rod bending under side loads. This non-magnetic SKU cannot support sensors.
Replacement checklist
Yes, the SID32X500 is discontinued. The direct replacement is the SAID32X500, which matches the ISO 15552 interface, 500 mm stroke, G1/8 port, and equal both-ways force.
Force is equal both ways at 345 N @0.5 MPa, 483 N @0.7 MPa, and 621 N @0.9 MPa. Speed is 30-800 mm/s. It uses a 12 mm rod, M10x1.25 thread, and 27 mm adjustable cushions.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID32X500 replacement — usually within 7-8 hours.