This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X980, 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 SI160X980 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 SAI160X980, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X980 is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 980 mm stroke. It delivers a thrust of 10053 N at 0.5 MPa via a G3/4 port. Because this legacy unit lacks a magnet (-S), it cannot accept position sensors.
Order the direct replacement SAI160X980: it shares the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories. The SAI features an upgraded piston seal (two Y-shaped one-way elements for low start-up pressure) and adds SAIL/BSAI lock variants the SI lacked.
| Model | Airtac SI160 Standard Cylinder SI160X980 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X980 |
| 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 SAI160X980 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 SAI160X980 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 robust 512 kg vertical lift fixtures in metal stamping lines, utilizing the 10053 N thrust at 0.5 MPa to move heavy billets.
Executes 980 mm extraction strokes to push loaded pallets from high-bay storage conveyors, requiring external guides to prevent rod bending.
Actuates oversized injection mold halves with 14074 N force at 0.7 MPa, relying on adjustable 50 mm cushions for smooth end-of-stroke deceleration.
To replace this SI160X980, order the SAI160X980. Verify the ISO 15552 mounting interface (LB, FA, CA, TC, etc.), the 980 mm stroke, and the G3/4 port. Since this specific SKU has no magnet, it cannot support legacy CS1-B/DS1-B sensors; order an SAI with the S suffix if sensing is required. For sizing, a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. Note that a plain cylinder drifts without live air—the cushion only decelerates—so use an external rod lock, pilot check valve, or SAIL/BSAI variant for load holding. Finally, at 980 mm, prevent rod bending by guiding the load externally to avoid side-load damage.
Replacement checklist
Yes, the SI160X980 is discontinued. The direct replacement is the SAI160X980. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 980 mm stroke, output force, G3/4 port, and mounting interface, so it fits existing fixtures perfectly.
This double-acting cylinder uses a G3/4 port. It delivers a push force of 10053 N and a pull force of 9425 N at 0.5 MPa, 14074 N at 0.7 MPa, 18095 N at 0.9 MPa, and a theoretical maximum of 2050 kgf at 1.0 MPa. It operates at 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X980 replacement — usually within 7-8 hours.