This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X920, 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 SI160X920 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 920mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X920, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X920 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 920 mm stroke. Delivering 10053 N push force at 0.5 MPa, it features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 port. The direct replacement is the SAI160X920, which shares the exact ISO 15552 mounting interface, output force, and dimensions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. This specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X920 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X920 |
| Bore size | Ø160 mm |
| Stroke | 920 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 SAI160X920 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 SAI160X920 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. |
| ×920 | 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 platens in hydraulic-replacement pneumatic presses, utilizing the 14074 N push force at 0.7 MPa for high-tonnage forming operations.
Actuates heavy-duty diverter arms on aggregate or scrap conveyors, relying on the robust 40 mm rod to withstand high impact shifting.
To replace the SI160X920, order the SAI160X920 keeping the identical 160 mm bore, 920 mm stroke, G3/4 port, and ISO 15552 mounting accessory (LB, FA, CA, TC). Because this is a non-magnet SKU, it cannot support position sensing; if switches are needed, specify an SAI model with the magnet option. Operating speed is 30-500 mm/s. When sizing, neighbouring bores offer alternatives: the 125 mm provides 6136 N push at 0.5 MPa, while the 200 mm yields 15708 N. Note that a plain cylinder does not hold load on air loss; the 50 mm adjustable cushions only decelerate. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Finally, at 920 mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces.
Replacement checklist
Yes, the SI160X920 is discontinued. The direct replacement is the SAI160X920. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 920 mm stroke, G3/4 port, and mounting interface, so it fits existing fixtures perfectly.
This double-acting cylinder uses a G3/4 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 SAI160X920 replacement — usually within 7-8 hours.