This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X100SFA, 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 Airtac SI160 Standard Cylinder SI160X100SFA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 100mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X100SFA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X100SFA is a discontinued double-acting ISO 15552 profile cylinder featuring a 160mm bore, 100mm stroke, and an FA flange mounting interface. It delivers a robust 10053 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI160X100SFA, a direct upgrade retaining the exact ISO 15552 mounting dimensions, G3/4 port size, M36x2 rod thread, and output force.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family introduces lock and clamp variants (SAIL, BSAI) absent in the SI line.
| Model | Airtac SI160 Standard Cylinder SI160X100SFA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X100SFA |
| Bore size | Ø160 mm |
| Stroke | 100 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 SAI160X100SFA 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 SAI160X100SFA 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. |
| ×100 | 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).
Generates up to 18095 N at 0.9 MPa to secure heavy metal components during high-stress machining or stamping operations.
Provides the sustained downward thrust required for forming large metal billets, utilizing the FA flange to handle massive axial loads.
Moves stacked pallets reliably in automated distribution lines, handling the high weight capacity with a 100mm stroke.
To replace the discontinued SI160X100SFA, order the SAI160X100SFA. Confirm the ISO 15552 FA flange interface, 160mm bore, 100mm stroke, G3/4 port, and the -S magnet for legacy CS1-B/DS1-B switches (the SAI uses current AirTAC switches). If sizing down, a 125mm bore yields 6136 N push at 0.5 MPa; if sizing up, a 200mm bore provides 15708 N. Note that a plain ISO 15552 cylinder drifts on air loss—the 50mm cushion only decelerates near stroke end. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. If stroke needs exceed 300mm, add external guides to prevent rod bending under side loads.
Replacement checklist
Yes, the SI160X100SFA is discontinued. The direct replacement is the SAI160X100SFA. It shares the identical ISO 15552 mounting interface, 160mm bore, 100mm stroke, force, and G3/4 port, fitting directly into existing FA flange fixtures.
This double-acting cylinder features a G3/4 port and delivers a push force of 10053 N and a pull force 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 SAI160X100SFA replacement — usually within 7-8 hours.