This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID100X80S, 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 SID100X80S 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 SAID100X80S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID100X80S is a double-acting double-rod ISO 15552 cylinder where a rod exits both ends on one piston. Both faces use the rod-side area, so push and pull force are equal at 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. The bore is 100 mm, rod is Ø25 mm, and the air port is G1/2. This SID model is discontinued; the direct replacement is the SAID100X80S. It shares the same ISO 15552 mounting interface, bore, stroke, and port. The SAI family uses an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life.
Because the second rod resists rotation and can carry a sensor cam, a double-rod design suits multi-tool drives. The built-in magnet (-S) works with legacy CS1-B/DS1-B switches. A plain cylinder does not hold loads on air loss; the 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 SID100X80S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID100X80S |
| 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 SAID100X80S 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 SAID100X80S 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).
Drives two opposing tools simultaneously from one piston, utilizing the equal both-ways force to machine parts on both ends without requiring separate actuators.
The dual-rod architecture prevents mechanical twisting during lateral transfers on a conveyor line, ensuring smooth part routing without adding external linear guides.
To replace the discontinued SID100X80S, install the direct replacement SAID100X80S, which matches the 100 mm bore, 80 mm stroke, G1/2 port, and ISO 15552 mounting (Basic, FA, LB, TC, FTC, TCM1, TCM2). Size both ways using the equal force: if 5153 N @0.7 MPa is insufficient, jump to a 125 mm bore; if excessive, drop to an 80 mm bore. Choose a double-rod cylinder when you need anti-rotation or must drive two tools. The -S suffix confirms the piston magnet for legacy CS1-B/DS1-B switches. For this 80 mm stroke, side-load is minimal, but for any stroke >=300 mm, verify guide alignment to prevent binding.
Replacement checklist
Yes, the SID100X80S is discontinued. The direct replacement is the SAID100X80S, which shares the same ISO 15552 mounting interface, 100 mm bore, 80 mm stroke, G1/2 port, and equal both-ways force. The SAI replacement also features an upgraded piston seal for longer life.
Force is equal both ways: 3681 N @0.5 MPa, 5153 N @0.7 MPa, and 6626 N @0.9 MPa. Speed is 30-800 mm/s. It uses a G1/2 port, a 25 mm rod, and adjustable air cushions. Note that a plain cylinder does not hold loads on air loss; the cushion only decelerates near stroke end.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID100X80S replacement — usually within 7-8 hours.