This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX105, 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 SI80AX105
The AirTAC SI80 Standard Air Cylinder SI80AX105 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 105mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX105, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke105 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80AX105
- 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 SI80AX105
The AirTAC SI80AX105 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 105 mm stroke, delivering 2513 N push force at 0.5 MPa. It features a SUS420J2 stainless steel piston rod for corrosion resistance. The direct replacement is the SAI80AX105, retaining the identical G3/8 port, M20x1.5 thread, and mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Without a -S suffix, this SKU cannot take a magnetic switch.
Airtac SI80 Standard Air Cylinder SI80AX105 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80AX105 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX105 |
| Bore size | Ø80 mm |
| Stroke | 105 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 SAI80AX105 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 SAI80AX105 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 SI80AX105
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×105 | 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 SI80AX105 Is Used
Corrosive Material Clamping
Uses the SUS420J2 stainless rod to securely clamp workpieces in wash-down or mildly corrosive manufacturing environments without rod degradation.
Heavy Package Diversion
Provides robust 2513 N push force at 0.5 MPa to deflect heavy pallets or packages on a 105 mm stroke without requiring maximum system pressure.
Pallet Stopper Gate
Acts as a high-force physical stop gate in distribution hubs, handling the impact of incoming loads while matching existing ISO 15552 fixture dimensions.
Replacing the Airtac SI80 Standard Air Cylinder SI80AX105 with the SAI80AX105
To replace the SI80AX105, order the SAI80AX105 to keep the exact ISO 15552 mounting interface, 80 mm bore, 105 mm stroke, and G3/8 port. Confirm your thread option (PT, G, or NPT) and mounting accessory (LB, FA, TC, etc.). Since this SKU lacks the -S magnet, it cannot accept a CS1-B/DS1-B sensor; if position detection is needed, switch to a magnet-equipped SAI80X105S. Sizing both ways: this bore yields 2513 N push at 0.5 MPa; stepping down to a 63 mm bore drops force to 1559 N, while stepping up to 100 mm increases it to 3927 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates near stroke end. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80AX105
- ✓ 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 SI80AX105 FAQ
Yes, the SI80AX105 is discontinued. The direct replacement is the SAI80AX105. It is dimensionally interchangeable per ISO 15552, maintaining the same 80 mm bore, 105 mm stroke, 513 kgf max force, G3/8 port, and mounting accessories.
The G3/8 port feeds a 25 mm rod delivering 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 max of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80AX105
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX105 replacement — usually within 7-8 hours.