This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X80N, 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.
Airtac SI160 Standard Cylinder SI160X80N
The AirTAC SI160 Standard Cylinder SI160X80N 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 SAI160X80N, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke80 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X80N
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI160 Standard Cylinder SI160X80N
The AirTAC SI160X80N is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke and NBR seals. Built for heavy-duty tasks, it delivers 10053 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI160X80N, a direct upgrade sharing the exact ISO 15552 mounting interface, M36x2 rod thread, and 50 mm cushions.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Because this specific SKU lacks the -S magnet, it cannot accept position switches.
Airtac SI160 Standard Cylinder SI160X80N Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X80N |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X80N |
| 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 SAI160X80N carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160X80N produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160X80N
| 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).
Where the Airtac SI160 Standard Cylinder SI160X80N Is Used
Heavy Press Operations
Drives large stamping and forming presses requiring up to 14074 N of thrust at 0.7 MPa, utilizing the 50 mm adjustable cushions to absorb severe end-of-stroke impacts.
Industrial Clamp Systems
Secures massive fabricated components during machining or welding, delivering a 9425 N pull force at 0.5 MPa while operating reliably within the -20 to +70 C NBR seal range.
High-Force Lowering Rigs
Controls the descent of heavy industrial platens, where the 80 mm stroke provides precise, short-travel positioning without the side-load risks inherent to longer extensions.
Replacing the Airtac SI160 Standard Cylinder SI160X80N with the SAI160X80N
To replace the SI160X80N, order the SAI160X80N. Confirm the ISO 15552 mounting fixture, 160 mm bore, 80 mm stroke, G3/4 port, and NBR seal option. The SAI family also introduces the SAIL air-released lock and BSAI clamp-lock variants; since a plain cylinder drifts on air loss and its cushion only decelerates, use these lock variants or an external pilot check valve for held loads. If sizing alternatives, the 125 mm bore offers less force, while the 200 mm bore provides 15708 N push at 0.5 MPa.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X80N
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160X80N FAQ
Yes, the SI160X80N is discontinued. The direct replacement is the SAI160X80N. It shares the identical ISO 15552 mounting interface, 160 mm bore, 80 mm stroke, output force, G3/4 port, and accessories, fitting directly into your existing fixtures.
This double-acting cylinder uses a G3/4 air port. It generates 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X80N
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X80N replacement — usually within 7-8 hours.