This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1080S, 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 SI80X1080S
The AirTAC SI80 Standard Air Cylinder SI80X1080S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1080mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1080S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1080 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1080S
- 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 SI80X1080S
The AirTAC SI80X1080S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, adjustable air cushions at both ends, and a built-in piston magnet for CS1-B/DS1-B switches. In this 80mm bore class it delivers 2513N push and 2268N pull at 0.5MPa, utilizing a G3/8 port and a 25mm piston rod with an M20x1.5 thread.
Because the SI line is end-of-life, you should order the direct replacement SAI80X1080S. It shares the exact ISO 15552 mounting interface, 1080mm stroke, force, and accessories, but upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure. Note that a plain cylinder drifts without live air; for held loads explore the SAIL lock or BSAI clamp-lock variants the SI series lacked.
Airtac SI80 Standard Air Cylinder SI80X1080S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1080S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1080S |
| Bore size | Ø80 mm |
| Stroke | 1080 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 SAI80X1080S 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 SAI80X1080S 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 SI80X1080S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1080 | 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 SI80X1080S Is Used
Long-Stroke Material Transfer
Pushes heavy pallets between conveyor lanes over a 1080mm distance, utilizing the 2513N thrust at 0.5MPa to overcome sliding friction reliably.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1080S with the SAI80X1080S
To replace the SI80X1080S, specify the SAI80X1080S and confirm the ISO 15552 mounting interface, 80mm bore, 1080mm stroke, G3/8 port (PT/G/NPT thread), and your mounting accessory (LB, FA, TC, etc.). The -S magnet equates to legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. If you need less force, a 63mm bore yields 1559N push at 0.5MPa; if you need more, a 100mm bore yields 3927N. Because 1080mm is a long stroke, prevent rod bending by guiding the load externally to avoid side-load damage. Remember that standard cushions only decelerate at end-of-stroke; to hold a load mid-stroke or during air loss, use an external pilot check valve, rod lock, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1080S
- ✓ 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 SI80X1080S FAQ
Yes, the SI80X1080S is discontinued. The direct replacement is the AirTAC SAI80X1080S. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 1080mm stroke, 25mm rod, G3/8 port, and mounting interface. The SAI simply upgrades the piston seal to two Y-shaped one-way elements for longer life and lower start-up pressure.
The 80mm bore uses a G3/8 air port. At 0.5MPa it provides 2513N push and 2268N pull force. At 0.7MPa push is 3518N, and at 0.9MPa it is 4523N. The theoretical maximum force is 513kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1080S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1080S replacement — usually within 7-8 hours.