This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X110S, 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 SI160X110S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 110mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X110S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X110S is a discontinued double-acting ISO 15552 profile cylinder featuring a 160 mm bore and 110 mm stroke. It delivers 10053 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI160X110S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces lock and clamp variants (SAIL, BSAI) absent in the SI line, and the -S magnet on this unit supports legacy CS1-B/DS1-B sensors.
| Model | Airtac SI160 Standard Cylinder SI160X110S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X110S |
| Bore size | Ø160 mm |
| Stroke | 110 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 SAI160X110S 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 SAI160X110S 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. |
| ×110 | 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 substantial forming and stamping presses requiring up to 10053 N of thrust at 0.5 MPa, utilizing the 160 mm bore for maximum push force.
Secures large fabricated components during machining or welding, relying on the 40 mm piston rod and M36x2 threading for rigid actuation.
To replace the SI160X110S, order the SAI160X110S. Confirm the ISO 15552 mounting interface, the 110 mm stroke, the G3/4 port (available in PT, G, or NPT), and your specific mounting accessory (LB, FA, TC, etc.). Because this is a high-thrust 160 mm bore cylinder, sizing both ways is critical: a 125 mm bore yields 6136 N push at 0.5 MPa, while a 200 mm bore yields 15708 N. Keep in mind a plain cylinder does not hold load on air loss—the cushion only decelerates. For load holding, specify the SAIL or BSAI lock variant, or use an external rod lock. The standard 110 mm stroke keeps side-load risks minimal, but always guide the rod for heavy masses. The M36x2 rod thread and 50 mm cushions match the original.
Replacement checklist
Yes, the SI160X110S is discontinued. The direct replacement is the SAI160X110S. It shares the identical ISO 15552 mounting interface, 160 mm bore, 110 mm stroke, output force, and G3/4 port, fitting directly into your existing fixtures.
This double-acting cylinder uses a G3/4 air port. It generates a push force of 10053 N and a pull force of 9425 N at 0.5 MPa. At 0.7 MPa the push force is 14074 N, and at 0.9 MPa it is 18095 N. 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 SAI160X110S replacement — usually within 7-8 hours.