This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX475S, 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 SI80AX475S
The AirTAC SI80 Standard Air Cylinder SI80AX475S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 475mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX475S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke475 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX475S
- 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 SI80AX475S
The AirTAC SI80AX475S is a discontinued double-acting ISO 15552 profile cylinder with a 475 mm stroke and an SUS420J2 stainless steel rod. It delivers 2513 N push and 2268 N pull at 0.5 MPa through a G3/8 port. AirTAC replaced it with the SAI80AX475S, a direct upgrade retaining the exact interface, force, and mounts.
The SAI features an upgraded two Y-shaped one-way piston seal for low start-up pressure. The SAI family adds SAIL and BSAI lock variants the SI lacked. This -S model uses CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80AX475S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX475S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX475S |
| Bore size | Ø80 mm |
| Stroke | 475 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 SAI80AX475S 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 SAI80AX475S 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 SI80AX475S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×475 | 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 SI80AX475S Is Used
Long-Stroke Diversion
Executes 475 mm routing of heavy pallets on packaging lines, using the 2513 N thrust to push components firmly into branching lanes.
Elevated Material Descent
Lowers 128 kg bulk hoppers smoothly, relying on the adjustable 36 mm cushions to brake the payload safely at the end of the 475 mm descent.
Stainless Rod Forming
Drives press dies in humid wash-down environments, where the SUS420J2 rod prevents corrosion while shifting heavy tooling blocks.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX475S with the SAI80AX475S
To replace the SI80AX475S, order the SAI80AX475S. Verify your ISO 15552 mounting fixtures (LB, FA, TC), the 475 mm stroke, and the G3/8 port. The -A rod is SUS420J2 stainless and -S includes a magnet for CS1-B/DS1-B switches. If sizing up or down, neighbouring bores (63 mm / 100 mm) offer 1559 N / 3927 N push at 0.5 MPa. For this 475 mm stroke, use external guides to prevent rod bending and side-load wear. The air cushion only decelerates; it does not hold load. For dead-load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX475S
- ✓ 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 SI80AX475S FAQ
Yes, the SI80AX475S is discontinued. The direct replacement is the SAI80AX475S. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 475 mm stroke, 2513 N force, G3/8 port, and mounting accessories.
It features a G3/8 air port. The force output is 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 of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX475S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX475S replacement — usually within 7-8 hours.