This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1500TC, 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 SI80X1500TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1500TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X1500TC is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 1500mm stroke. Delivering 2513N push force at 0.5MPa, it is replaced by the SAI80X1500TC direct. The SAI features an upgraded piston seal (two Y-shaped one-way elements for low start-up pressure) while retaining the G3/8 port and TC trunnion mount.
This non-magnet SKU cannot take a sensor. Note that the SAI family adds SAIL, SAIF and BSAI lock variants the SI lacked. The 1500mm stroke requires external guides to prevent rod bending.
| Model | Airtac SI80 Standard Air Cylinder SI80X1500TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1500TC |
| Bore size | Ø80 mm |
| Stroke | 1500 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 SAI80X1500TC 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 SAI80X1500TC 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. |
| ×1500 | 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).
Moves heavy pallets 1500mm between conveyor lines using 2513N thrust, relying on external guides to prevent rod bending.
Actuates a 1500mm reach arm to index large totes into storage racks, requiring the TC trunnion mount for pivot alignment.
Shifts heavy sub-assemblies down a 1.5-meter workstation track, safely operating at a 1508N working load.
To replace the SI80X1500TC, order the SAI80X1500TC to get the exact ISO 15552 TC trunnion interface, 80mm bore, 1500mm stroke, G3/8 port and 2513N force. Because this is a non-S SKU, it cannot accept a CS1-B/DS1-B sensor. If you need to downsize, the 63mm bore yields 1559N push; if you need more force, the 100mm bore yields 3927N. A plain cylinder does not hold load without live air—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant. At 1500mm stroke, you must use external guides to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SI80X1500TC is discontinued. The direct replacement is the SAI80X1500TC, which matches the ISO 15552 TC mounting interface, 80mm bore, 1500mm stroke, G3/8 port and output force.
It features a G3/8 air port. Force output is 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a theoretical max of 513kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1500TC replacement — usually within 7-8 hours.