This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X160CA, 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 SI160X160CA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 160mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X160CA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X160CA is a discontinued double-acting ISO 15552 profile cylinder delivering 10053 N of push force at 0.5 MPa through a 160 mm bore and 160 mm stroke. It features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 air port. AirTAC replaced this legacy unit with the SAI160X160CA direct replacement, matching the exact CA clevis mounting interface, output force, and stroke.
Because this SKU lacks the -S magnet, it cannot accept a position sensor. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants absent from the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X160CA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X160CA |
| Bore size | Ø160 mm |
| Stroke | 160 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 SAI160X160CA 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 SAI160X160CA 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. |
| ×160 | 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 thrust at 0.5 MPa, utilizing the 160 mm stroke to cycle heavy tooling.
Lifts loaded pallets up to the 512 kg vertical limit, relying on the robust 40 mm rod and CA clevis mount to handle substantial mechanical loads.
Actuates heavy-duty welding fixtures where the G3/4 port and 30-500 mm/s speed range maintain steady clamping pressure on large assemblies.
To replace the SI160X160CA, order the SAI160X160CA. Confirm the ISO 15552 interface, 160 mm stroke, G3/4 port, and CA clevis mount. This non-magnetic SKU cannot support sensors, whereas the SAI family accepts current AirTAC switches. If sizing down, a 125 mm bore yields 6136 N push at 0.5 MPa; if sizing up, a 200 mm bore provides 15708 N. Note that a plain cylinder drifts without live air, as the 50 mm cushions only decelerate. For load holding, specify an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI160X160CA is discontinued. The direct replacement is the SAI160X160CA. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 160 mm stroke, G3/4 port, output force, and CA mounting interface.
It uses a G3/4 air port. The force output is 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 SAI160X160CA replacement — usually within 7-8 hours.