This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX190, 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 Airtac SI160 Standard Cylinder SI160AX190 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 190mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX190, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160AX190 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 190 mm stroke. It delivers 10053 N push force at 0.5 MPa. The direct replacement is the SAI160AX190, matching the bore, stroke, G3/4 port, and ISO 15552 mounting interface.
The SAI upgrade features a new piston seal with two Y-shaped elements for low start-up pressure. This SKU has a SUS420J2 stainless rod and no magnet, so it cannot take a sensor.
| Model | Airtac SI160 Standard Cylinder SI160AX190 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX190 |
| Bore size | Ø160 mm |
| Stroke | 190 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160AX190 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 | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160AX190 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). |
|---|---|
| 160 | 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).
Drives large presses and stamping dies requiring high thrust and robust cushioning.
Shifts heavy loaded pallets on conveyors where substantial push force is mandatory.
Actuates massive industrial fixtures and clamps in heavy machinery assembly lines.
To replace the SI160AX190, order the SAI160AX190. Verify the ISO 15552 mounting, 190 mm stroke, and G3/4 port. This non-magnet SKU cannot fit CS1-B/DS1-B sensors. The 160 mm bore yields 10053 N push at 0.5 MPa; a 200 mm bore offers 15708 N. The cushion only decelerates; for load holding, use an external rod lock or pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI160AX190 is discontinued. The direct replacement is the SAI160AX190, which shares the same ISO 15552 mounting interface, 160 mm bore, 190 mm stroke, and G3/4 port.
It has a G3/4 port. Force ratings are 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and a max force of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX190 replacement — usually within 7-8 hours.