This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X980S, 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 SI160X980S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 980mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X980S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X980S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 980 mm stroke. Delivering 10053 N push force at 0.5 MPa through a G3/4 port, it is replaced by the direct replacement SAI160X980S, sharing the exact interface, M36x2 thread, and 50 mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The -S magnet supports CS1-B/DS1-B switches, and Viton H seals allow 150 C heat.
| Model | Airtac SI160 Standard Cylinder SI160X980S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X980S |
| Bore size | Ø160 mm |
| Stroke | 980 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 SAI160X980S 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 SAI160X980S 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. |
| ×980 | 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 push force at 0.5 MPa with stable 980 mm travel.
Shifts heavy structural components along 980 mm strokes, relying on adjustable 50 mm cushions for smooth stops.
To replace the SI160X980S, order the SAI160X980S, confirming the ISO 15552 mounting interface, 160 mm bore, 980 mm stroke, G3/4 port, and -S magnet for CS1-B/DS1-B switches. It delivers 10053 N push at 0.5 MPa; if undersized, the 200 mm bore yields 15708 N. For load holding on air loss, note that cushions only decelerate; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 980 mm, use external guides to prevent rod bending.
Replacement checklist
Yes, the SI160X980S is discontinued. The direct replacement is the SAI160X980S. It shares the same ISO 15552 mounting interface, 160 mm bore, 980 mm stroke, output force, G3/4 port, and accessories, fitting existing fixtures perfectly.
This double-acting cylinder operates at 30-500 mm/s. It delivers 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 max of 2050 kgf at 1.0 MPa. The G3/4 port and M36x2 thread handle the required air volume.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X980S replacement — usually within 7-8 hours.