This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X1100N, 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 SI160X1100N is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 1100mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X1100N, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X1100N is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 1100 mm stroke. Delivering 10053 N push force at 0.5 MPa via a G3/4 port, this legacy unit is replaced by the SAI160X1100N. The SAI is a direct upgrade, matching the exact ISO 15552 mounting interface, stroke, and force while adding a durable two Y-shaped one-way piston seal for lower start-up pressure. This NBR-sealed (-N) SKU lacks a magnet (-S) and cannot accept position sensors.
The SAI family also introduces lock variants like the SAIL and BSAI that the original SI line lacked, providing solutions for load holding that a standard cylinder cannot achieve.
| Model | Airtac SI160 Standard Cylinder SI160X1100N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X1100N |
| Bore size | Ø160 mm |
| Stroke | 1100 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 SAI160X1100N 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 SAI160X1100N 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. |
| ×1100 | 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 metal blanks into heavy-duty stamping presses, utilizing the 10053 N push force to move substantial mass reliably over the 1100 mm travel.
Shifts heavy injection molds or machining fixtures along the 1100 mm stroke, requiring external guide rails to prevent rod bending during transit.
To replace the discontinued SI160X1100N, order the SAI160X1100N, confirming the ISO 15552 mounting interface, 160 mm bore, 1100 mm stroke, G3/4 port, and NBR seal. Because this non-magnetic SKU lacks a -S suffix, it cannot support CS1-B/DS1-B sensors; if sensing is required, specify a magnet on the new SAI order. A plain cylinder does not hold load on air loss—the cushion only decelerates—so for suspended loads use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Finally, with a 1100 mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
Yes, the SI160X1100N is discontinued. The direct replacement is the SAI160X1100N. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 1100 mm stroke, force, G3/4 port, and mounting interface.
This 160 mm bore cylinder features a G3/4 port and M36x2 rod thread. It delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X1100N replacement — usually within 7-8 hours.