This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1500, 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 SI80X1500 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 SAI80X1500, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X1500 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 1500mm stroke. Delivering 2513N push force at 0.5MPa via a G3/8 port, its direct replacement is the SAI80X1500, which retains the exact same mounting interface, output force, and dimensions.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this non-magnetic SKU cannot accept a sensor; legacy -S versions used CS1-B/DS1-B switches.
| Model | Airtac SI80 Standard Air Cylinder SI80X1500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1500 |
| 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 SAI80X1500 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 SAI80X1500 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).
Shifts heavy pallets or workpieces across a 1.5m span where the 2513N push force at 0.5MPa easily overcomes rolling friction.
Pushes formed components out of a wide press bed, relying on adjustable 36mm air cushions to decelerate the payload smoothly.
To replace the SI80X1500, order the SAI80X1500 and verify your ISO 15552 mounting accessories (LB, FA, TC, etc.), G3/8 port threads (PT/G/NPT), and M20x1.5 rod-end connections. Because this is a non-magnetic SKU, it cannot take a position switch. If sensing is required, step up to an SAI80X1500S. For sizing alternatives, neighboring bores (63mm or 100mm) offer 1559N or 3927N push at 0.5MPa respectively. A standard cylinder drifts on air loss—the cushion only decelerates—so for load holding, specify an external pilot check valve, rod lock, or the SAIL/BSAI lock variant. At 1500mm, this long stroke demands external guides to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SI80X1500 is discontinued. The direct replacement is the SAI80X1500, which shares identical ISO 15552 mounting dimensions, 80mm bore, 1500mm stroke, G3/8 port, and output force.
It features a G3/8 port and provides 2513N push / 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a theoretical maximum of 513kgf at 1.0MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1500 replacement — usually within 7-8 hours.