This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X415S, 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 SI80X415S
The AirTAC SI80 Standard Air Cylinder SI80X415S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 415mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X415S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke415 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X415S
- 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 SI80X415S
The AirTAC SI80X415S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, delivering 2513 N push force at 0.5 MPa through its G3/8 port. AirTAC replaced this legacy unit with the SAI80X415S, a direct sharing the exact 80 mm bore, 415 mm stroke, M20x1.5 rod thread and mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The family adds SAIL, SAIF and BSAI lock variants the SI lacked, and the original -S magnet supports legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X415S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X415S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X415S |
| Bore size | Ø80 mm |
| Stroke | 415 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 SAI80X415S 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 SAI80X415S 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 SI80X415S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×415 | 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 SI80X415S Is Used
Pallet Diversion
Actuates heavy lane diverters on packaging lines, using the 415 mm stroke to shift pallets smoothly between parallel conveyors.
Vertical Lift Gate
Raises and lowers mezzanine safety gates, providing robust 2513 N push force to lift steel panels against gravity.
Press Ejection
Ejects formed metal parts from stamping presses, relying on adjustable end cushions to absorb kinetic energy on 415 mm extensions.
Replacing the Airtac SI80 Standard Air Cylinder SI80X415S with the SAI80X415S
To replace this SI80X415S, order the SAI80X415S: verify the ISO 15552 mounting accessory, G3/8 port, M20x1.5 thread and the -S magnet. For lighter duties, a 63 mm bore gives 1559 N push at 0.5 MPa; for heavier lifts, a 100 mm bore yields 3927 N. Because stroke is 415 mm, use an external guide to prevent rod bending and side-load wear. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X415S
- ✓ 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 SI80X415S FAQ
Yes, the SI80X415S is discontinued. The direct replacement is the SAI80X415S. It shares the identical ISO 15552 mounting interface, 80 mm bore, 415 mm stroke, output force, G3/8 port and accessories, fitting existing fixtures perfectly.
At 0.5 MPa it provides 2513 N push and 2268 N pull. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical max force is 513 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-800 mm/s, and it uses a G3/8 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X415S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X415S replacement — usually within 7-8 hours.