This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX800S, 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 SI80AX800S
The AirTAC SI80 Standard Air Cylinder SI80AX800S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX800S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX800S
- 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 SI80AX800S
The AirTAC SI80AX800S is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 800mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a G3/8 port. The direct replacement is the SAI80AX800S, retaining the same interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SI80AX800S has a SUS420J2 stainless rod and a magnet for CS1-B/DS1-B switches. Note that plain cylinders drift without air; use SAIL or BSAI lock variants for load holding.
Airtac SI80 Standard Air Cylinder SI80AX800S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX800S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX800S |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAI80AX800S 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 SAI80AX800S 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 SI80AX800S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SI80AX800S Is Used
Long-Stroke Diversion
Pushes heavy pallets 800mm across a transfer line, utilizing the 2513N thrust at 0.5MPa to overcome friction.
Stainless Press Tooling
Actuates a 2268N pull fixture in a humid washdown area, relying on the SUS420J2 rod to resist corrosion.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX800S with the SAI80AX800S
To replace the SI80AX800S, order the SAI80AX800S. Verify the ISO 15552 mounting interface, 80mm bore, 800mm stroke, G3/8 port, and SUS420J2 stainless rod (-A). The built-in magnet (-S) works with legacy CS1-B/DS1-B sensors, though the SAI uses current AirTAC switches. At 0.5MPa it yields 2513N push; if undersized, the 100mm bore offers 3927N. For 800mm strokes, use external guides to prevent rod bending and side-load damage. The cushion only decelerates; it does not hold load, so add a pilot check valve or explore SAIL/BSAI lock variants for safety.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX800S
- ✓ 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 SI80AX800S FAQ
Yes, the SI80AX800S is discontinued. The direct replacement is the SAI80AX800S. It is dimensionally interchangeable per ISO 15552, matching the 80mm bore, 800mm stroke, force, G3/8 port, and mounting fixtures.
The G3/8 port feeds a 25mm rod. At 0.5MPa it pushes 2513N and pulls 2268N. At 0.7MPa push is 3518N, and 4523N at 0.9MPa. The theoretical max is 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX800S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX800S replacement — usually within 7-8 hours.