This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X100FA, 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 SI80X100FA
The AirTAC Airtac SI80 Standard Air Cylinder SI80X100FA is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X100FA, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X100FA
- 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 SI80X100FA
The AirTAC SI80X100FA is a discontinued double-acting ISO 15552 profile cylinder featuring an 80mm bore, 100mm stroke, and an FA flange mount. Delivering 2513N push force at 0.5MPa, it is replaced by the SAI80X100FA. This direct successor shares the exact ISO 15552 mounting interface, G3/8 port, and output force.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this SKU lacks a magnet, it cannot take a sensor; the SI used CS1-B/DS1-B switches on magnetized versions.
Airtac SI80 Standard Air Cylinder SI80X100FA Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X100FA |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X100FA |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAI80X100FA 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 SAI80X100FA 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 SI80X100FA
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SI80X100FA Is Used
Press Fit Assembly
Applies 2513N of push force at 0.5MPa to seat bearings and bushings into housings on an automated machining line.
Pallet Diversion
Uses the FA flange mount to securely raise a 100mm stroke diverting gate, redirecting heavy product flow on a conveyor.
Replacing the Airtac SI80 Standard Air Cylinder SI80X100FA with the SAI80X100FA
To replace the SI80X100FA, order the SAI80X100FA. Verify the ISO 15552 FA flange interface, 80mm bore, 100mm stroke, G3/8 port, and M20x1.5 rod thread. If you need position feedback, select an SAI model with the -S magnet option, as this non-S SKU cannot accept a sensor. For sizing, the 80mm bore yields 2513N push at 0.5MPa; dropping to a 63mm bore gives 1559N, while an 80mm at 0.7MPa yields 3518N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X100FA
- ✓ 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 SI80X100FA FAQ
Yes, the SI80X100FA is discontinued. The direct replacement is the SAI80X100FA. It shares the same ISO 15552 FA flange mounting interface, 80mm bore, 100mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
The 80mm bore features a G3/8 air port and provides 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a theoretical max of 513kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X100FA
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X100FA replacement — usually within 7-8 hours.