This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX105S, 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 SI80AX105S
The AirTAC SI80 Standard Air Cylinder SI80AX105S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 105mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX105S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX105S
- 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 SI80AX105S
The AirTAC SI80AX105S is a discontinued double-acting ISO 15552 profile cylinder featuring a 105 mm stroke and a SUS420J2 stainless steel piston rod. Delivering 2513 N push force at 0.5 MPa through its G3/8 port, it is replaced by the SAI80AX105S. This direct successor shares identical mounting, bore, and force ratings, fitting existing fixtures seamlessly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. The SAI family also adds SAIL, SAIF, and BSAI lock variants unavailable in the SI line.
Airtac SI80 Standard Air Cylinder SI80AX105S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX105S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX105S |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAI80AX105S 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 SAI80AX105S 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 SI80AX105S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SI80AX105S Is Used
Mid-Tonnage Forming
Drives 80 mm bore pressing and rivoting tasks, delivering 2518 N at 0.7 MPa to seat components firmly in automated machining cells.
Heavy Package Diverting
Actuates robust routing gates on high-throughput packaging lines, using the 105 mm stroke to push dense cartons smoothly onto auxiliary tracks.
Pallet Stopper Arms
Functions as a heavy-duty stopper on roller conveyors, holding pallets securely in place via the SUS420J2 stainless rod during loading operations.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX105S with the SAI80AX105S
To replace the SI80AX105S, order the SAI80AX105S. Verify your ISO 15552 mounting interface, 105 mm stroke, G3/8 port, and M20x1.5 rod thread. The -S magnet accommodates legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. The -A rod is SUS420J2 stainless steel. Sizing both ways: the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, and the 100 mm bore yields 3927 N. A plain cylinder drifts without live air; for load holding, use an external rod lock or the SAIL/BSAI variant. Since the stroke is 105 mm, standard guidance is adequate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX105S
- ✓ 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 SI80AX105S FAQ
Yes, the SI80AX105S is discontinued. The direct replacement is the SAI80AX105S. It shares the same ISO 15552 mounting interface, 80 mm bore, 105 mm stroke, output force, G3/8 port, and SUS420J2 stainless rod, fitting existing fixtures perfectly.
The 80 mm bore features a G3/8 air port and M20x1.5 rod thread. It delivers 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 maximum force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX105S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX105S replacement — usually within 7-8 hours.