This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX175, 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 SI80AX175
The AirTAC SI80 Standard Air Cylinder SI80AX175 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX175, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX175
- 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 SI80AX175
The AirTAC SI80AX175 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 175mm stroke. It delivers 2513N push force at 0.5MPa via a G3/8 port. The direct replacement is the SAI80AX175, which matches the original bore, stroke, force, port and mounting interface exactly.
This SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SI80AX175 uses a SUS420J2 stainless rod (A suffix) for corrosion resistance. It lacks a magnet, so it cannot take a sensor.
Airtac SI80 Standard Air Cylinder SI80AX175 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX175 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX175 |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAI80AX175 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 SAI80AX175 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 SI80AX175
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SI80AX175 Is Used
Mid-Tonnage Pressing
Applies the 3518N push force at 0.7MPa for seating bearings or light stamping tasks in automated machinery.
Package Diverting
Drives heavy-duty routing gates and pushers on high-throughput packaging lines with a 175mm stroke.
Pallet Lift Stops
Acts as a robust physical stop for pallet lifts and material handling fixtures up to 128kg vertical load.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX175 with the SAI80AX175
To replace the SI80AX175, order the SAI80AX175. Confirm the ISO 15552 mounting interface, 80mm bore, 175mm stroke, G3/8 port (PT/G/NPT) and mounting accessory match your fixture. This SKU lacks a magnet (-S), so it cannot accept a CS1-B/DS1-B sensor; order a magnet-equipped SAI if sensing is needed. For sizing, a 63mm bore offers 1559N [email protected], while a 100mm bore gives 3927N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock or pilot check valve for holding, or specify the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX175
- ✓ 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 SI80AX175 FAQ
Yes, the AirTAC SI80AX175 is discontinued. The direct replacement is the SAI80AX175. It is dimensionally interchangeable per ISO 15552, matching the 80mm bore, 175mm stroke, 2513N force, G3/8 port and mounting interface.
The G3/8 port feeds a 25mm rod. Forces are 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a theoretical max of 513kgf at 1.0MPa. The cushion is 36mm and speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX175
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX175 replacement — usually within 7-8 hours.