This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X600TC, 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 SI80X600TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X600TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X600TC is a discontinued double-acting ISO 15552 profile cylinder with a 600 mm stroke and TC trunnion mount. Delivering 2513 N push force at 0.5 MPa through a G3/8 port, it is replaced by the SAI80X600TC. This direct upgrade shares the exact ISO 15552 mounting interface, bore, and stroke.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. This SKU lacks a magnet, so it cannot take a sensor. For holding loads, the cushion only decelerates; use the SAIL or BSAI lock variants.
| Model | Airtac SI80 Standard Air Cylinder SI80X600TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X600TC |
| Bore size | Ø80 mm |
| Stroke | 600 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 SAI80X600TC 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 SAI80X600TC 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. |
| ×600 | 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).
Ideal for pushing heavy pallets along a conveyor over a 600 mm distance, utilizing the 2513 N push force at 0.5 MPa to overcome friction.
Actuates large redirect gates in packaging lines where the TC trunnion mount accommodates the pivot arc during the 600 mm extension.
To replace the SI80X600TC, order the SAI80X600TC. Verify the ISO 15552 TC trunnion mount, 80 mm bore, 600 mm stroke, and G3/8 port. This non-magnet SKU cannot accept CS1-B/DS1-B sensors. For sizing, the 80 mm bore yields 2513 N push at 0.5 MPa; dropping to a 63 mm bore gives 1559 N, while an 80 mm bore at 0.7 MPa yields 3518 N. Note: at 600 mm, prevent rod bending by adding an external guide. The cushion only decelerates; for load holding, use an external rod lock or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI80X600TC is discontinued. The direct replacement is the SAI80X600TC. It shares the same ISO 15552 mounting interface, 80 mm bore, 600 mm stroke, and G3/8 port, fitting existing fixtures perfectly.
The bore is 80 mm with a G3/8 port. Force output is 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N push at 0.9 MPa. The theoretical maximum force is 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X600TC replacement — usually within 7-8 hours.