This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID80X80, 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 SID80X80 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID80X80, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SID80X80 is a double-acting, double-rod ISO 15552 cylinder featuring a 25 mm rod exiting both ends. This geometry yields equal force in both directions (2268 N at 0.5 MPa, 3175 N at 0.7 MPa, 4082 N at 0.9 MPa) and provides inherent anti-rotation stability. The SID80X80 is discontinued; its direct replacement is the SAID80X80, which shares the exact G3/8 port, M20x1.5 rod thread, 36 mm cushion, and ISO 15552 mounting interface.
The SAID upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this SKU lacks a magnet (-S) and cannot accept switches; furthermore, the air cushion only decelerates near stroke end and does not hold loads on air loss—use an external rod lock or SAIL/BSAI variant for holding.
| Model | Airtac SID Series Double-Rod Cylinder SID80X80 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID80X80 |
| Bore size | Ø80 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 SAID80X80 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAID80X80 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). |
|---|---|
| 80 | 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 opposing gripper jaws where equal push and pull force ensures balanced clamping pressure on machined parts.
Mounts a diverter arm on one rod end and a sensor cam on the back rod, utilizing the anti-rotation property for precise lane routing.
Applies 2268 N of equal both-ways force to halt pallets; the second rod simultaneously triggers a mechanical flag.
To replace the discontinued SID80X80, install the SAID80X80 directly; it preserves the 80 mm bore, 80 mm stroke, G3/8 port, and ISO 15552 dimensions, allowing full reuse of FA, LB, or TC mounts. Size both directions by the equal force curve: if 3175 N at 0.7 MPa is insufficient, step up to bore 100, or drop to bore 63 if overspecified. Choose a double-rod cylinder when you need anti-rotation resistance or must drive a cam from the back rod. Because this non-magnetic SKU cannot carry a sensor, add an external -S variant if switch tracking is required. For this 80 mm stroke, side-load is minimal, but for strokes >=300 mm, ensure guide alignment to prevent rod binding.
Replacement checklist
Yes, the SID80X80 is discontinued. The direct replacement is the SAID80X80, matching the 80 mm bore, 80 mm stroke, G3/8 port, and ISO 15552 mounting interface.
Force is equal both ways: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. Speed is 30-800 mm/s. The air cushion only decelerates near stroke end and does not hold loads on air loss.
Send us the quantity and destination. We confirm price, stock and lead time on the SAID80X80 replacement — usually within 7-8 hours.