This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X700, 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 SI80X700
The AirTAC SI80 Standard Air Cylinder SI80X700 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X700, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X700
- 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 SI80X700
The AirTAC SI80X700 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 700 mm stroke. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X700. This direct successor matches the exact interface, bore, stroke, force and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Since this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X700 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X700 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X700 |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAI80X700 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 SAI80X700 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 SI80X700
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SI80X700 Is Used
Long-Stroke Diversion
Pushes heavy pallets across transfer lines using the full 700 mm stroke, relying on external guides to prevent rod bending.
Heavy Clamping Press
Secures large fabrications during machining, applying 2513 N of clamping force at a 0.5 MPa operating pressure.
Replacing the Airtac SI80 Standard Air Cylinder SI80X700 with the SAI80X700
To replace the SI80X700, order the SAI80X700 and verify the ISO 15552 mounting interface, G3/8 port, and M20x1.5 rod thread. The 700 mm stroke is within the 1500 mm standard limit, but at this length you must prevent side-load and rod-bending by using external guides. If you need more force, the neighbouring 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 a pilot check valve or the SAIL/BSAI lock variant for load holding. The SAI family also adds the SAIF self-valve option.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X700
- ✓ 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 SI80X700 FAQ
Yes, the SI80X700 is discontinued. The direct replacement is the SAI80X700, which shares the identical ISO 15552 mounting interface, 80 mm bore, 700 mm stroke, output force, G3/8 port and accessories.
The G3/8 port feeds a 25 mm rod. Forces are: 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.
Request a Quote for the SAI80X700
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X700 replacement — usually within 7-8 hours.