This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X130S, 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 SI160X130S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 130mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X130S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X130S is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 130 mm stroke, delivering 10053 N push force at 0.5 MPa through its G3/4 port. AirTAC replaced this legacy unit with the SAI160X130S. The SAI is a direct upgrade: it matches the exact ISO 15552 mounting interface, bore, stroke, force, and port size, dropping directly into existing fixtures without modifications.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The original SI-S included a piston magnet for CS1-B/DS1-B sensors, while the SAI family introduces lock variants like SAIL and BSAI that the SI line lacked.
| Model | Airtac SI160 Standard Cylinder SI160X130S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X130S |
| Bore size | Ø160 mm |
| Stroke | 130 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 SAI160X130S 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 SAI160X130S 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. |
| ×130 | 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 up to 14074 N of push force at 0.7 MPa to deform thick metal plates.
Actuates heavy injection mold tooling or clamps massive industrial fixtures safely within automated production lines.
To replace the SI160X130S, order the SAI160X130S and confirm the ISO 15552 mounting interface, the 130 mm stroke, the G3/4 port, and your mounting accessory (LB, FA, CA, TC, etc.). Because this unit has the -S magnet, verify your sensor choice: the legacy SI used CS1-B/DS1-B switches, whereas the SAI uses current AirTAC switches. For sizing, this 160 mm bore outputs 10053 N at 0.5 MPa; if less force is needed, a 125 mm bore provides 6136 N. If more force is required, the 200 mm bore yields 15708 N. Remember that a plain cylinder does not hold load without live air—the cushion only decelerates. For load holding on air loss, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants. Rod material options include carbon steel, SUS420J2 (A), or SUS304 (B).
Replacement checklist
Yes, the AirTAC SI160X130S is discontinued. The direct replacement is the SAI160X130S. It is dimensionally interchangeable per ISO 15552, maintaining the same 160 mm bore, 130 mm stroke, output force, G3/4 port, and mounting interface.
This double-acting cylinder features a G3/4 port and a 40 mm piston rod. It delivers 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 SAI160X130S replacement — usually within 7-8 hours.