This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X110TC, 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 SI80X110TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 110mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X110TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X110TC is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore, 110 mm stroke, and a TC trunnion mount. Delivering 2513 N push force at 0.5 MPa, it is replaced by the SAI80X110TC. This direct upgrade keeps the exact same G3/8 port, M20x1.5 rod thread, and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SI SKU lacks a magnet, it cannot accept a sensor.
| Model | Airtac SI80 Standard Air Cylinder SI80X110TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X110TC |
| Bore size | Ø80 mm |
| Stroke | 110 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 SAI80X110TC 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 SAI80X110TC 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. |
| ×110 | 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).
Drives medium-tonnage bearings into housings using its 2513 N thrust at 0.5 MPa, relying on the TC mount for pivotal alignment.
Pushes heavy pallets off a main conveyor line, utilizing the 110 mm stroke and 2268 N pull force for reliable retraction.
To replace the SI80X110TC, order the SAI80X110TC. Verify the ISO 15552 TC trunnion mount, 80 mm bore, 110 mm stroke, and G3/8 port. This SKU has no magnet, so position sensing is impossible; order an SAI variant with S if you need CS1-B/DS1-B switches. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for holding. If you need more force, the 100 mm bore offers 3927 N push at 0.5 MPa; if less, the 63 mm bore gives 1559 N. The SAIL or BSAI lock variants offer integrated holding if required.
Replacement checklist
Yes, the SI80X110TC is discontinued. The direct replacement is the SAI80X110TC. It is dimensionally interchangeable per ISO 15552, retaining the same TC mount, 80 mm bore, 110 mm stroke, force, and G3/8 port. The SAI simply upgrades the piston seal.
The 80 mm bore features a G3/8 port and provides 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa it pushes 3518 N, and 4523 N 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 SAI80X110TC replacement — usually within 7-8 hours.