This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X410CA, 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 SI80X410CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 410mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X410CA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X410CA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 410 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X410CA, sharing the exact same ISO 15552 mounting interface, CA clevis accessory, and force ratings.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this no-S SKU cannot take a sensor; legacy CS1-B/DS1-B switches require a magnet. For high heat, Viton H seals raise the limit to 150 C.
| Model | Airtac SI80 Standard Air Cylinder SI80X410CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X410CA |
| Bore size | Ø80 mm |
| Stroke | 410 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 SAI80X410CA 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 SAI80X410CA 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. |
| ×410 | 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 a CA clevis-mounted diverter arm on a packaging line, using the 2513 N push force at 0.5 MPa to redirect heavy pallets reliably.
Drives an ejection gate on a stamping press, where the 410 mm stroke clears the finished part from the tooling while the adjustable cushion decelerates the load.
To replace the SI80X410CA, order the SAI80X410CA. Confirm the ISO 15552 CA clevis mount, 80 mm bore, 410 mm stroke, and G3/8 port. This no-magnet SKU cannot accept a sensor; if position detection is needed, order an SAI equivalent with the -S suffix for current AirTAC switches. Sizing both ways: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. A plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. With a 410 mm stroke, use an external guide to prevent rod bending and side-load wear.
Replacement checklist
Yes, the SI80X410CA is discontinued. The direct replacement is the SAI80X410CA. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 410 mm stroke, G3/8 port, CA clevis mount, and output force.
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical max is 513 kgf at 1.0 MPa. It uses a G3/8 port, has a 25 mm rod with an M20x1.5 thread, and operates at 30-800 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X410CA replacement — usually within 7-8 hours.