This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X214, 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 SI80 Standard Air Cylinder SI80X214 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 214mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X214, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X214 is a discontinued double-acting ISO 15552 profile cylinder featuring an 80 mm bore and 214 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. Because this legacy SI unit is end-of-life, AirTAC specifies the SAI80X214 as the direct replacement. The SAI family retains the same ISO 15552 mounting interface, bore, stroke, output force, and port size, ensuring it fits existing fixtures perfectly.
The SAI upgrade introduces an advanced piston seal utilizing two Y-shaped one-way elements for extended life and lower start-up pressure. This SKU lacks the -S magnet suffix and therefore cannot accept a position sensor. If high-temperature operation is required, Viton H seal options raise the operating range to 0-150 C.
| Model | Airtac SI80 Standard Air Cylinder SI80X214 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X214 |
| Bore size | Ø80 mm |
| Stroke | 214 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 SAI80X214 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 SAI80X214 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. |
| ×214 | 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).
Actuates diverter arms on high-speed packaging lines, utilizing the 214 mm stroke to push cartons cleanly onto adjacent lanes without stalling.
Serves as a robust pneumatic stop for heavy pallets on roller conveyors, using its 2513 N push force to halt momentum safely.
Ejects formed metal or plastic parts from press beds, where the 80 mm bore provides sufficient thrust to clear the tooling reliably.
To replace the discontinued SI80X214, order the SAI80X214. Verify that the ISO 15552 mounting interface, 80 mm bore, 214 mm stroke, G3/8 port, and M20x1.5 rod thread match your fixture. Since this specific SKU lacks the -S magnet suffix, it cannot support legacy CS1-B or DS1-B sensors; order an -S variant if position detection is needed. When sizing, consider neighboring bores: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. A plain cylinder does not hold load on air loss; the 36 mm adjustable cushion only decelerates near stroke end. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAI family also offers the SAIF self-valve option for bores up to 100 mm.
Replacement checklist
Yes, the AirTAC SI80X214 is discontinued. The direct replacement is the SAI80X214. It shares the identical ISO 15552 mounting interface, 80 mm bore, 214 mm stroke, output force, and G3/8 port, fitting directly into existing machinery.
This double-acting cylinder operates at 30-800 mm/s. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical maximum force of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X214 replacement — usually within 7-8 hours.