This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X830S, 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 SI160X830S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 830mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X830S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X830S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 830 mm stroke. It delivers 10053 N push force at 0.5 MPa, utilizing a G3/4 air port and a 50 mm adjustable air cushion at each end. The direct replacement is the SAI160X830S, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
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 on air loss, the SAI family adds SAIL and BSAI lock variants the SI lacked. This -S model includes a piston magnet for CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
| Model | Airtac SI160 Standard Cylinder SI160X830S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X830S |
| Bore size | Ø160 mm |
| Stroke | 830 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 SAI160X830S 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 SAI160X830S 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. |
| ×830 | 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).
Generates 14074 N at 0.7 MPa to actuate large forming presses, with the 50 mm cushion absorbing kinetic energy at stroke end.
Drives heavy-duty diverter arms on conveyor lines, using the 830 mm stroke to redirect large bulk material flows efficiently.
To replace the SI160X830S, order the SAI160X830S. Verify the ISO 15552 mounting interface, 830 mm stroke, G3/4 port, and your mounting accessory. The -S suffix means a magnet is present for position sensing; the SAI accepts current AirTAC switches, while the legacy SI used CS1-B/DS1-B sensors. Because the 830 mm stroke is long, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss because the cushion only decelerates; for load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant. If sizing down, the 125 mm bore yields 6136 N push at 0.5 MPa; if sizing up, the 200 mm bore provides 15708 N. Speed is 30-500 mm/s.
Replacement checklist
Yes, the SI160X830S is discontinued. The direct replacement is the SAI160X830S. It is dimensionally interchangeable per ISO 15552, keeping the same 160 mm bore, 830 mm stroke, force, G3/4 port, and mounting interface.
It features a G3/4 air port and provides 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, and 18095 N push at 0.9 MPa. The theoretical maximum force is 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X830S replacement — usually within 7-8 hours.