This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X80, 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 SID100X80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 80mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID100X80, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID100X80 is a discontinued double-acting, double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, making push and pull force equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The bore is 100 mm, the rod is Ø25 mm, and the air port is G1/2. The direct replacement is the SAID100X80, which shares the same interface, stroke, and mounting.
The SAI upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. This non-magnet SKU (no -S) cannot take a sensor. A plain cylinder drifts on air loss; the 36 mm adjustable cushion only decelerates near stroke end. For held loads, use an external rod lock or SAIL/BSAI variant.
| Model | Airtac SID Series Double-Rod Cylinder SID100X80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X80 |
| Bore size | Ø100 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID100X80 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAID100X80 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). |
|---|---|
| 100 | Bore size in mm. |
| ×80 | 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).
Uses the opposing rod end to drive a secondary mechanical cam or linkage, ensuring perfectly synchronized gripping with equal push and pull force.
Mounts through a bulkhead to push a transfer carriage from one zone to another, utilizing the double-rod geometry for anti-rotation stability.
To replace the discontinued SID100X80, install the SAID100X80 direct: it matches the 100 mm bore, 80 mm stroke, G1/2 port, and ISO 15552 mounting. Because force is equal both ways, size both directions by the 5153 N @0.7 MPa rating. If you need less force, step down to the 80 mm bore (3175 N @0.7 MPa); if you need more, step up to the 125 mm bore (8028 N @0.7 MPa). A double rod is right when you need anti-rotation, extra rigidity, or a back rod to carry a sensor cam. Mounting options are Basic, FA, LB, or TC. For strokes >=300 mm, verify side-load limits. This SKU lacks the -S magnet, so it cannot support legacy CS1-B/DS1-B sensors.
Replacement checklist
Yes, the SID100X80 is discontinued. The direct replacement is the SAID100X80. It shares the same ISO 15552 interface, 100 mm bore, 80 mm stroke, G1/2 port, and mounting, but features an upgraded two Y-shaped one-way piston seal for longer life and lower start-up pressure.
Force is equal both ways due to the double-rod design: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Speed is 30-800 mm/s. The air cushion is 36 mm at each end. Note that this cylinder does not hold loads on air loss; use an external rod lock or SAIL/BSAI variant for load holding.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X80 replacement — usually within 7-8 hours.