This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X220FA, 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 SI160X220FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 220mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X220FA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X220FA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 220 mm stroke. It delivers 10053 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI160X220FA, a direct upgrade retaining the exact ISO 15552 mounting interface, M36x2 rod thread, 50 mm cushions and FA flange. This SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and long life. If high heat is involved, a Viton H seal raises the operating range to 0-150 C.
| Model | Airtac SI160 Standard Cylinder SI160X220FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X220FA |
| Bore size | Ø160 mm |
| Stroke | 220 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 SAI160X220FA 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 SAI160X220FA 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. |
| ×220 | 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 stamping and forming presses requiring 10053 N of push force at 0.5 MPa, utilizing the FA flange to handle severe lateral stresses.
Actuates heavy industrial flow gates, using the G3/4 port for rapid 30-500 mm/s cycling and 50 mm cushions to soften end-of-stroke impacts.
To replace the SI160X220FA, order the SAI160X220FA. Verify your FA flange mounting bolts and G3/4 pneumatic plumbing match the ISO 15552 interface. Because this specific SKU has no -S magnet, position sensing is impossible without external retrofits. If you need to downsize, a 125 mm bore yields 6136 N push at 0.5 MPa; if you need more force, stepping up is unnecessary as 160 mm already provides 14074 N at 0.7 MPa. Remember, a standard cylinder drifts on air loss—the 50 mm cushions only decelerate near stroke end. For secure load holding, specify the SAIL or BSAI lock variant, or add an external pilot check valve. Since the 220 mm stroke is below the 300 mm threshold, rod bending is minimal, but ensure the FA mount alignment is precise.
Replacement checklist
Yes, the SI160X220FA is discontinued. The direct replacement is the SAI160X220FA. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 220 mm stroke, FA flange, G3/4 port, and 10053 N output force, but adds an upgraded Y-shaped piston seal.
This 160 mm bore cylinder uses a G3/4 air port and an M36x2 rod thread. The thrust ratings are: 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X220FA replacement — usually within 7-8 hours.