This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X30FA, 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 SI160X30FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 30mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X30FA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X30FA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 30 mm stroke. It delivers a push force of 10053 N at 0.5 MPa and features a G3/4 air port with an M36x2 rod thread. Because this legacy unit is end-of-life, you should order the direct replacement: the SAI160X30FA. It shares the same ISO 15552 mounting interface, bore, stroke, force and port size, fitting your existing FA flange fixtures perfectly.
The SAI upgrade introduces a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. For applications needing load holding, note that a standard cylinder drifts without live air; the SAIL or BSAI lock variants solve this. Since this specific SKU lacks a magnet (-S), it cannot accept position sensors.
| Model | Airtac SI160 Standard Cylinder SI160X30FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X30FA |
| Bore size | Ø160 mm |
| Stroke | 30 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 SAI160X30FA 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 SAI160X30FA 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. |
| ×30 | 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).
Applies the 10053 N push force at 0.5 MPa to secure large metal stampings or heavy machinery components during high-stress manufacturing operations.
Uses the short 30 mm stroke to act as a rugged, high-impact physical stop for heavy loaded pallets entering a transfer station via conveyor.
Provides robust ejection force for large injection molds or cast parts, utilizing the M36x2 rod end and FA flange mount for rigid structural support.
To replace the discontinued SI160X30FA, order the SAI160X30FA, confirming the ISO 15552 FA flange interface, 160 mm bore, 30 mm stroke, and G3/4 port are retained. The SAI family adds the SAIF self-valve and SAIL lock variants the SI lacked. If sizing alternatives, a 200 mm bore offers more force while a 125 mm bore provides less. At 0.5 MPa, this 160 mm bore pushes 10053 N and pulls 9425 N. Remember that a plain cylinder does not hold load on air loss; use an external rod lock or pilot check valve for vertical safety. This SKU has no magnet, so it cannot support CS1-B/DS1-B sensors.
Replacement checklist
Yes, the SI160X30FA is discontinued. The direct replacement is the SAI160X30FA. It is dimensionally interchangeable per ISO 15552, retaining the same 160 mm bore, 30 mm stroke, 10053 N output force, G3/4 port, and FA flange mounting interface.
This double-acting cylinder uses a G3/4 air port. The thrust ratings are: 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical maximum force of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X30FA replacement — usually within 7-8 hours.