This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX240, 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 SI80AX240
The AirTAC SI80 Standard Air Cylinder SI80AX240 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 240mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX240, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke240 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX240
- 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 SI80AX240
The AirTAC SI80AX240 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 240mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a G3/8 port. The direct replacement is the SAI80AX240, matching the bore, stroke, force, port and ISO 15552 mounting interface exactly.
This SKU features a SUS420J2 stainless steel rod (A suffix) for corrosion resistance and lacks a magnet, so it cannot accept position sensors. The SAI upgrade uses two Y-shaped piston seals for low start-up pressure. Note the cushion only decelerates; use SAIL or BSAI lock variants to hold loads.
Airtac SI80 Standard Air Cylinder SI80AX240 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX240 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX240 |
| Bore size | Ø80 mm |
| Stroke | 240 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 SAI80AX240 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 SAI80AX240 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 SI80AX240
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×240 | 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 SI80AX240 Is Used
Stainless Rod Clamping
Leverages the SUS420J2 rod to clamp parts in humid or mildly corrosive environments where a standard carbon rod would pit.
Mid-Stroke Diverting
Provides robust 2513N push force at 0.5MPa to divert heavy packages on a 240mm travel line without needing full extension.
Pallet Stop Gate
Acts as a heavy-duty stop gate for pallets, safely halting loads using its adjustable end cushions before unloading.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX240 with the SAI80AX240
To replace the SI80AX240, order the SAI80AX240. Verify the ISO 15552 mounting interface, 80mm bore, 240mm stroke, G3/8 port (PT/G/NPT thread options) and mounting accessories. This non-magnet SKU cannot take CS1-B/DS1-B sensors. Sizing both ways: an 80mm bore gives 2513N push at 0.5MPa, while a 63mm bore yields 1559N. For 240mm strokes, ensure guide alignment to prevent rod bending. The cushion only decelerates; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants. The SAI family also adds SAIF self-valve options.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX240
- ✓ 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 SI80AX240 FAQ
Yes, the SI80AX240 is discontinued. The direct replacement is the SAI80AX240. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 240mm stroke, G3/8 port and mounting interface.
The 80mm bore uses a G3/8 port. It delivers 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX240
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX240 replacement — usually within 7-8 hours.