This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X190CA, 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 SI80X190CA 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 SAI80X190CA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80X190CA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 190 mm stroke. It delivers 2513 N of push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X190CA, which maintains the exact same ISO 15552 mounting interface, bore, stroke, output force, and port size for existing CA clevis fixtures.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. For applications needing load holding, the SAI family adds SAIL and BSAI lock variants the SI lacked. Note this specific SKU lacks a magnet and cannot accept a CS1-B or DS1-B sensor.
| Model | Airtac SI80 Standard Air Cylinder SI80X190CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X190CA |
| 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 SAI80X190CA 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 SAI80X190CA 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).
Provides 2513 N of push force at 0.5 MPa to reliably eject formed metal parts from a hydraulic press bed.
Uses the 190 mm stroke and CA clevis mount to push heavy pallets onto a secondary packaging line at 30-800 mm/s.
To replace the discontinued SI80X190CA, order the SAI80X190CA. Confirm the ISO 15552 CA clevis mounting, 80 mm bore, 190 mm stroke, G3/8 port, and M20x1.5 rod thread. Because this non-magnetic SKU lacks a sensor groove piston, you cannot mount switches; if sensing is needed, specify an SAI with the magnet option. For sizing, the 80 mm bore yields 2513 N push at 0.5 MPa; if less force is acceptable, a 63 mm bore provides 1559 N, while a 100 mm bore offers 3927 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external pilot check valve or the SAIL lock variant for held loads. At 190 mm stroke, side-load risks are low, but ensure rigid CA mounting to prevent rod bending.
Replacement checklist
Yes, the SI80X190CA is discontinued. The direct replacement is the SAI80X190CA. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 190 mm stroke, G3/8 port, and CA mounting interface.
The 80 mm bore uses a G3/8 port. It delivers 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 theoretical maximum of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X190CA replacement — usually within 7-8 hours.