This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X160S, 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 SI80 Standard Air Cylinder SI80X160S
The AirTAC SI80 Standard Air Cylinder SI80X160S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X160S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X160S
- 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 SI80 Standard Air Cylinder SI80X160S
The AirTAC SI80X160S is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 160mm stroke, delivering 2513N push force at 0.5MPa via a G3/8 port. AirTAC replaced it with the SAI80X160S, a direct upgrade sharing the same interface, force, and mounting.
The SAI features an upgraded piston seal with two Y-shaped elements for low start-up pressure. The SAI family adds SAIL, SAIF, and BSAI variants the SI lacked.
Airtac SI80 Standard Air Cylinder SI80X160S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X160S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X160S |
| Bore size | Ø80 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80X160S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X160S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X160S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×160 | 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 SI80 Standard Air Cylinder SI80X160S Is Used
Heavy Pressing
Applies the 3518N push force at 0.7MPa for seating bearings or stamping components in automated assembly lines.
Pallet Diverting
Handles robust diverting or stopping tasks on heavy-duty material handling conveyors using the 25mm rod.
Replacing the Airtac SI80 Standard Air Cylinder SI80X160S with the SAI80X160S
To replace the SI80X160S, order the SAI80X160S, confirming the ISO 15552 mounting interface, 80mm bore, 160mm stroke, G3/8 port, and magnet for position sensing. The SAI uses current AirTAC switches, while the legacy SI used CS1-B/DS1-B sensors. If you need more force, the 100mm bore offers 3927N push at 0.5MPa; if less is needed, the 63mm bore provides 1559N. For load holding on air loss, note that a plain cylinder drifts and the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X160S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X160S FAQ
Yes, the SI80X160S is discontinued. The direct replacement is the SAI80X160S, which shares the same ISO 15552 mounting interface, 80mm bore, 160mm stroke, force, and G3/8 port.
It features a G3/8 air port. The force ratings are: 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a theoretical max of 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X160S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X160S replacement — usually within 7-8 hours.