This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX115, 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 SI80AX115
The AirTAC SI80 Standard Air Cylinder SI80AX115 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 115mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX115, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke115 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX115
- 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 SI80AX115
The AirTAC SI80AX115 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 115mm stroke. Delivering 2513N push force at 0.5MPa via a G3/8 port, it is replaced by the SAI80AX115. This direct upgrade shares identical ISO 15552 mounting dimensions, bore, stroke, force, and port size.
The SAI80AX115 upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. This specific SKU uses the SUS420J2 stainless steel rod (-A) for corrosion resistance, but lacks a magnet, meaning it cannot accept CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80AX115 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX115 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX115 |
| Bore size | Ø80 mm |
| Stroke | 115 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 SAI80AX115 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 SAI80AX115 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 SI80AX115
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×115 | 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 SI80AX115 Is Used
Mid-Tonnage Pressing
Applies 2513N of thrust at 0.5MPa for seating bearings, stamping light-gauge sheet metal, or clinching components in automated fabrication cells.
Heavy Package Diversion
Drives robust routing gates and pusher arms on high-throughput parcel lines, moving loads safely up to the 1508N working threshold.
Pallet Stopper Arms
Acts as a heavy-duty pneumatic stop for 80mm profile systems, halting pallets or work-in-progress trays at machining checkpoints.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX115 with the SAI80AX115
To replace the SI80AX115, order the SAI80AX115. Confirm the ISO 15552 mounting interface, 80mm bore, 115mm stroke, G3/8 port (PT/G/NPT thread options), and your specific mounting accessory. Because this SKU has no magnet (-S), it cannot support position sensing; if switches are needed, select an SAI80AX115S and use current AirTAC switches. Sizing both ways: the 80mm bore yields 2513N push at 0.5MPa, while a neighbouring 63mm bore offers 1559N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX115
- ✓ 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 SI80AX115 FAQ
Yes, the SI80AX115 is discontinued. The direct replacement is the SAI80AX115. It shares the same ISO 15552 mounting interface, 80mm bore, 115mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
The bore is 80mm with a G3/8 air port. Force ratings are: 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. Speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX115
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX115 replacement — usually within 7-8 hours.