This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX130S, 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 SI80AX130S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 130mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX130S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80AX130S is a discontinued double-acting ISO 15552 profile cylinder featuring an 80mm bore, 130mm stroke, and a SUS420J2 stainless steel rod. Delivering 2513 N push force at 0.5 MPa, it is replaced by the direct replacement SAI80AX130S, sharing the exact G3/8 port, M20x1.5 thread, and mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The -S magnet pairs with legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL and BSAI lock variants the SI lacked.
| Model | Airtac SI80 Standard Air Cylinder SI80AX130S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX130S |
| Bore size | Ø80 mm |
| Stroke | 130 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 SAI80AX130S 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 SAI80AX130S 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. |
| ×130 | 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 clamping machined parts in humid environments, utilizing the SUS420J2 rod for corrosion resistance and 2513 N of holding force.
Drives package diverters on transfer lines, where the 130mm stroke provides rapid actuation at speeds up to 800 mm/s.
Controls pallet stop gates in material handling, offering a safe 1508 N working load to halt heavy pallets reliably.
To replace this SI80AX130S, order the SAI80AX130S. It is a direct per the ISO 15552 mounting interface, keeping the 80mm bore, 130mm stroke, G3/8 port, and SUS420J2 stainless rod. If you need less force, the 63mm bore yields 1559 N push at 0.5 MPa; if you need more, the 100mm bore provides 3927 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variants. The 130mm stroke is short enough to avoid rod-bending side-load issues, but always guide the load.
Replacement checklist
Yes, the SI80AX130S is discontinued. The direct replacement is the SAI80AX130S. It shares the identical ISO 15552 mounting interface, 80mm bore, 130mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
The bore is 80mm with a G3/8 air port. The thrust is 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 maximum theoretical force of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX130S replacement — usually within 7-8 hours.