This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160AX10S, 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 SI160 Standard Cylinder SI160AX10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 10mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160AX10S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160AX10S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 10 mm stroke, delivering 10053 N push force at 0.5 MPa. It features a SUS420J2 stainless piston rod (-A), a built-in magnet (-S) for CS1-B/DS1-B sensors, and a G3/4 port. AirTAC replaced this legacy unit with the SAI160AX10S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI replacement incorporates an upgraded piston seal utilizing two Y-shaped one-way elements for extended life and low start-up pressure. The SAI family also introduces variants the SI line lacked, such as the SAIL air-released lock and BSAI clamp-lock for secure load holding.
| Model | Airtac SI160 Standard Cylinder SI160AX10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160AX10S |
| Bore size | Ø160 mm |
| Stroke | 10 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 SAI160AX10S 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 SAI160AX10S 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. |
| ×10 | 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).
Applies the 14074 N push force at 0.7 MPa to secure large metalwork components during machining operations.
Utilizes the SUS420J2 stainless rod for corrosion resistance in humid environments while executing short 10 mm ejection strokes.
Acts as a high-force physical stop mechanism in conveyor lines, easily monitored via the integrated magnet and switches.
To replace the discontinued SI160AX10S, order the SAI160AX10S, confirming the ISO 15552 mounting interface, 160 mm bore, 10 mm stroke, G3/4 port, and the -S magnet for current AirTAC switches. The -A rod specifies the SUS420J2 stainless steel option over standard carbon steel. When sizing, neighboring bores offer different forces: the 125 mm bore provides 6136 N push at 0.5 MPa, while the 200 mm bore yields 15708 N. A plain cylinder does not hold load on air loss; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The 50 mm cushion stroke and M36x2 thread remain unchanged.
Replacement checklist
Yes, the SI160AX10S is discontinued. The direct replacement is the SAI160AX10S, which maintains the same ISO 15552 mounting interface, bore, stroke, force, and G3/4 port. It fits existing fixtures directly and uses an upgraded piston seal for longer life.
The G3/4 port feeds a 40 mm rod delivering 10053 N push and 9425 N pull at 0.5 MPa. At 0.7 MPa push is 14074 N, and at 0.9 MPa it is 18095 N. The theoretical maximum force is 2050 kgf at 1.0 MPa, operating at 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160AX10S replacement — usually within 7-8 hours.