This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X150FA, 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 SI160X150FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X150FA, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI160X150FA is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 150 mm stroke. Built for heavy-duty tasks, it delivers 10053 N of push force at 0.5 MPa and uses a G3/4 air port. AirTAC replaced this legacy unit with the SAI160X150FA, a direct replacement retaining the exact ISO 15552 mounting interface, bore, output force, and FA flange mounting.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S) and cannot support magnetic sensing; legacy CS1-B/DS1-B switches only fit magnetized variants. Furthermore, standard cylinders do not hold loads without live air—the cushion only decelerates—so consider the SAIL or BSAI lock variants for static holding.
| Model | Airtac SI160 Standard Cylinder SI160X150FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X150FA |
| Bore size | Ø160 mm |
| Stroke | 150 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 SAI160X150FA 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 SAI160X150FA 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. |
| ×150 | 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 or forming dies with 14074 N push force at 0.7 MPa, utilizing the 50 mm adjustable cushion to absorb impact.
Secures massive fabricated components during machining via the rigid FA flange mount, handling 9425 N pull force.
To replace the discontinued SI160X150FA, order the SAI160X150FA. Confirm the ISO 15552 FA flange interface, 160 mm bore, 150 mm stroke, and G3/4 port (available in PT, G, or NPT threads). If your application requires position sensing, be aware this no-S SKU cannot accept a sensor; you must select a magnetized SAI model with current AirTAC switches. Sizing alternatives: dropping to a 125 mm bore yields 6136 N push at 0.5 MPa, while stepping up to 200 mm provides 15708 N. For load holding on air loss, a plain cylinder drifts; integrate an external pilot check valve or explore the SAIL (air-released lock) and BSAI (clamp-lock) variants. At 150 mm stroke, side-load risks are minimal, but always ensure proper guide alignment to prevent rod bending.
Replacement checklist
Yes, the SI160X150FA is discontinued. The direct replacement is the SAI160X150FA. It shares the identical ISO 15552 mounting interface, 160 mm bore, 150 mm stroke, G3/4 port, and FA flange, fitting directly into existing fixtures.
This 160 mm bore cylinder features a G3/4 air port and a 40 mm rod. It delivers 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 of 2050 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X150FA replacement — usually within 7-8 hours.