This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X80FA, 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 SI160X80FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 80mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X80FA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X80FA is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke. Built for heavy-duty tasks, it delivers 10053 N push force at 0.5 MPa through a 160 mm bore and G3/4 port. AirTAC replaced this legacy unit with the SAI160X80FA, a direct replacement matching the exact ISO 15552 mounting interface, stroke, output force, and FA flange accessories.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S), so it cannot accept CS1-B or DS1-B sensors. For high-heat environments, a Viton H seal option raises the operating ceiling to 150 C.
| Model | Airtac SI160 Standard Cylinder SI160X80FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X80FA |
| Bore size | Ø160 mm |
| Stroke | 80 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 SAI160X80FA 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 SAI160X80FA 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. |
| ×80 | 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, leveraging the 160 mm bore for massive impact.
Secures large fabricated components during welding or machining using the FA flange mount to withstand significant side loads.
To replace the discontinued SI160X80FA, order the SAI160X80FA ensuring the FA flange mounting and G3/4 port match your fixture. Because this SKU has no magnet, it cannot support position sensing; if you require switches, select an SAI model with the S suffix for current AirTAC sensor compatibility. When sizing, the 160 mm bore yields 10053 N push at 0.5 MPa; if you need less force, a 125 mm bore provides 6136 N, while a 200 mm bore offers 15708 N. Remember that a standard cylinder does not hold load without live air—the cushion only decelerates. For fail-safe load holding, consider the SAIL or BSAI lock variants, or use an external pilot check valve.
Replacement checklist
Yes, the SI160X80FA is discontinued. The direct replacement is the SAI160X80FA. It shares the identical ISO 15552 mounting interface, 160 mm bore, 80 mm stroke, force output, and G3/4 port, fitting directly into your existing FA flange fixtures.
This 160 mm bore cylinder features a G3/4 port and delivers a push force of 10053 N and pull of 9425 N at 0.5 MPa. At 0.7 MPa it pushes 14074 N, and 18095 N at 0.9 MPa. 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 SAI160X80FA replacement — usually within 7-8 hours.