This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X380STC, 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 SI80X380STC
The AirTAC SI80 Standard Air Cylinder SI80X380STC 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 SAI80X380STC, 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 → SAI80X380STC
- 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 SI80X380STC
The AirTAC SI80X380STC is a discontinued double-acting ISO 15552 profile cylinder with a 380 mm stroke. Delivering 2513 N push and 2268 N pull at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X380STC. This direct upgrade retains the exact bore, stroke, force, port and TC mounting interface.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI80X380STC includes a magnet for CS1-B/DS1-B sensors. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
Airtac SI80 Standard Air Cylinder SI80X380STC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X380STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X380STC |
| 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 SAI80X380STC 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 SAI80X380STC 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 SI80X380STC
| 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 SI80X380STC Is Used
Pallet Diversion
Shifts heavy pallets laterally on a packaging line using the 2513 N push force and 380 mm travel distance.
Press Ejection
Ejects metal parts from a press using the TC trunnion mount to handle pivot dynamics during retraction.
Replacing the Airtac SI80 Standard Air Cylinder SI80X380STC with the SAI80X380STC
To replace the SI80X380STC, order the SAI80X380STC. Confirm the ISO 15552 TC trunnion mount, G3/8 port, M20x1.5 rod thread and the -S magnet for current AirTAC switches. If you need more force, the 100 mm bore offers 3927 N push at 0.5 MPa; if less is needed, the 63 mm bore provides 1559 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for holding, or choose the SAIL/BSAI lock variant. With a 380 mm stroke, use an external guide to prevent rod bending and side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X380STC
- ✓ 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 SI80X380STC FAQ
Yes, the AirTAC SI80X380STC is discontinued. The direct replacement is the SAI80X380STC. It matches the ISO 15552 mounting interface, 80 mm bore, 380 mm stroke, output force, G3/8 port and TC mount, fitting existing fixtures perfectly.
The bore is 80 mm with a G3/8 port. It delivers 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical max force of 513 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X380STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X380STC replacement — usually within 7-8 hours.