This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X190TC, 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 SI80X190TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 190mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X190TC, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X190TC is a discontinued double-acting ISO 15552 profile cylinder with a 190 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X190TC, matching the exact bore, stroke, force, port and TC trunnion mount.
The SAI upgrade features two Y-shaped one-way piston seals 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 SI80X190TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X190TC |
| Bore size | Ø80 mm |
| Stroke | 190 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 SAI80X190TC 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 SAI80X190TC 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. |
| ×190 | 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 routing arms on 190 mm strokes to redirect heavy pallets along handling lines.
Raises and lowers 120 kg material gates using the 80 mm bore's substantial push force.
Drives finished components out of machining centers with reliable double-acting power.
To replace the SI80X190TC, order the SAI80X190TC to keep the identical ISO 15552 TC trunnion mounting interface, 80 mm bore, 190 mm stroke, G3/8 port and M20x1.5 rod thread. Since this SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B switches. If you need more force than the 2513 N at 0.5 MPa, step up to a 100 mm bore; if less is required, a 63 mm bore provides 1559 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
Yes, the SI80X190TC is discontinued. The direct replacement is the SAI80X190TC. It shares the identical ISO 15552 TC mounting interface, 80 mm bore, 190 mm stroke, output force and G3/8 port, fitting existing fixtures perfectly.
This 80 mm bore cylinder features a G3/8 port, a 25 mm rod and a 36 mm cushion. It provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N 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 SAI80X190TC replacement — usually within 7-8 hours.