This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X360S, 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 SI80X360S
The AirTAC SI80 Standard Air Cylinder SI80X360S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 360mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X360S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke360 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X360S
- 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 SI80X360S
The AirTAC SI80X360S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel. It delivers a push force of 2513 N at 0.5 MPa and features a G3/8 air port. AirTAC replaced this legacy unit with the SAI80X360S, a direct replacement retaining the exact bore, stroke, output force, port size, and ISO 15552 mounting interface.
The SAI upgrade introduces an upgraded piston seal using two Y-shaped one-way elements for low start-up pressure and long life. The SI-S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants the original lacked.
Airtac SI80 Standard Air Cylinder SI80X360S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X360S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X360S |
| Bore size | Ø80 mm |
| Stroke | 360 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 SAI80X360S 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 SAI80X360S 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 SI80X360S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×360 | 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 SI80X360S Is Used
Pallet Diversion
Actuates heavy lane diverters on packaging lines, utilizing the 2513 N push force to shift loaded pallets smoothly at 0.5 MPa.
Press Ejection
Ejects formed metal parts from stamping presses, relying on the adjustable 36 mm air cushions to decelerate the rod at stroke ends.
Replacing the Airtac SI80 Standard Air Cylinder SI80X360S with the SAI80X360S
To replace the SI80X360S, order the SAI80X360S, confirming the ISO 15552 mounting interface, 80 mm bore, 360 mm stroke, G3/8 port, and the -S magnet for current AirTAC switches. When sizing, neighboring bores offer different forces: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. Note that a plain cylinder does not hold load on air loss; the air cushion only decelerates near stroke end. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Because the 360 mm stroke is long, prevent rod bending by guiding the load externally to avoid side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X360S
- ✓ 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 SI80X360S FAQ
Yes, the SI80X360S is discontinued. The direct replacement is the SAI80X360S. It is dimensionally interchangeable per ISO 15552, maintaining the same bore, stroke, force, G3/8 port, and mounting interface.
It features a G3/8 air port. The force ratings are 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X360S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X360S replacement — usually within 7-8 hours.