This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X380, 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 SI80X380
The AirTAC SI80 Standard Air Cylinder SI80X380 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 380mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X380, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke380 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X380
- 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 SI80X380
The AirTAC SI80X380 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 380mm stroke. Delivering 2513N push force at 0.5MPa through a G3/8 port, it is replaced by the SAI80X380. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force and port, fitting existing fixtures perfectly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SKU lacks the -S magnet, it cannot accept position sensors like the legacy CS1-B/DS1-B switches.
Airtac SI80 Standard Air Cylinder SI80X380 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X380 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X380 |
| Bore size | Ø80 mm |
| Stroke | 380 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 SAI80X380 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 SAI80X380 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 SI80X380
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×380 | 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 SI80X380 Is Used
Pallet Diversion
Actuates heavy lane guides to divert loaded pallets, utilising the 2513N push force to overcome lateral friction on the conveyor line.
Press Ejection
Ejects formed metal components from a hydraulic press, relying on the adjustable 36mm air cushions to decelerate the rod smoothly at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X380 with the SAI80X380
To replace the SI80X380, order the SAI80X380. Confirm the ISO 15552 mounting accessory (LB, FA, CA, TC), the G3/8 port thread (PT/G/NPT) and the M20x1.5 rod end. This SKU has no -S magnet, so it cannot take a sensor; if sensing is needed, specify an SAI80X380S. The 380mm stroke is within the 1500mm standard maximum, but at this length you should use an external guide to prevent rod bending and side-load damage. Output is 2513N push at 0.5MPa; neighbouring bores are 63mm (1559N) or 100mm (3927N). A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X380
- ✓ 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 SI80X380 FAQ
Yes, the SI80X380 is discontinued. The direct replacement is the SAI80X380. It is a true ISO 15552 profile cylinder with the same 80mm bore, 380mm stroke, 2513N force, G3/8 port and mounting interface, so it drops directly into existing fixtures.
The bore is 80mm with a G3/8 port. The thrust is 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a theoretical maximum of 513kgf at 1.0MPa. Operating speed is 30-800mm/s.
Request a Quote for the SAI80X380
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X380 replacement — usually within 7-8 hours.