This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X360STC, 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 SI80X360STC
The AirTAC SI80 Standard Air Cylinder SI80X360STC 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 SAI80X360STC, 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 → SAI80X360STC
- 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 SI80X360STC
The AirTAC SI80X360STC is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 360 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI80X360STC, matching the exact TC trunnion mount, M20x1.5 rod thread, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI80 Standard Air Cylinder SI80X360STC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X360STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X360STC |
| 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 SAI80X360STC 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 SAI80X360STC 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 SI80X360STC
| 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 SI80X360STC Is Used
Pallet Diversion
Executes 360 mm strokes to divert heavy pallets on packaging lines, utilizing the 2513 N push force at 0.5 MPa to overcome lateral friction.
Vertical Material Lift
Hoists components weighing up to the 128 kg safe vertical lift threshold, relying on the TC trunnion mount to absorb pivot stresses during elevation.
Press Ejection
Cycles stamped parts out of machinery beds, where the 36 mm adjustable air cushions absorb kinetic energy at the 360 mm stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X360STC with the SAI80X360STC
To replace the SI80X360STC, order the SAI80X360STC ensuring the ISO 15552 interface, 80 mm bore, 360 mm stroke, G3/8 port, and TC trunnion mount match your fixture. The -S magnet requires position switches; use legacy CS1-B/DS1-B for the SI, or current AirTAC switches for the SAI. If sizing alternatives, neighboring bores (63 mm or 100 mm) change the 0.5 MPa push force (1559 N or 3927 N). Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. Finally, at 360 mm stroke, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X360STC
- ✓ 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 SI80X360STC FAQ
Yes, the SI80X360STC is discontinued. The direct replacement is the SAI80X360STC. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 360 mm stroke, G3/8 port, TC mount, and output force.
The 80 mm bore provides 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 of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X360STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X360STC replacement — usually within 7-8 hours.