This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX165, 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 SI80BX165
The AirTAC SI80 Standard Air Cylinder SI80BX165 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 165mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX165, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke165 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX165
- 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 SI80BX165
The AirTAC SI80BX165 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 165mm stroke. Delivering 2513N push force at 0.5MPa via a G3/8 port, its direct replacement is the SAI80BX165. The SAI upgrade retains identical ISO 15552 mounting dimensions, bore, and output force, fitting existing fixtures perfectly.
This specific SKU features a SUS304 stainless steel rod for corrosion resistance but lacks a magnet, meaning it cannot accept position switches. The SAI uses an upgraded two Y-shaped element piston seal for low start-up pressure.
Airtac SI80 Standard Air Cylinder SI80BX165 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX165 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX165 |
| Bore size | Ø80 mm |
| Stroke | 165 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 SAI80BX165 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 SAI80BX165 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 SI80BX165
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×165 | 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 SI80BX165 Is Used
Packaging Line Diverters
Drives heavy-duty routing gates on high-speed packaging conveyors, utilizing the 2513N thrust at 0.5MPa to push loaded cartons reliably without bouncing.
Stainless Press Tooling
Actuates forming dies in humid or washdown environments where the SUS304 rod prevents corrosion, providing consistent 165mm travel for metal shaping.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX165 with the SAI80BX165
To replace the discontinued SI80BX165, order the SAI80BX165. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/8 port thread (PT/G/NPT), and the 165mm stroke. Because this SKU lacks the -S magnet, it cannot support sensors; if sensing is needed, switch to an SAI80X165S and use current AirTAC switches. Sizing alternatives: a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. For load holding, the standard cushion only decelerates; add an external rod lock, a pilot check valve, or specify an SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX165
- ✓ 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 SI80BX165 FAQ
Yes, the AirTAC SI80BX165 is discontinued. The direct replacement is the SAI80BX165. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 165mm stroke, G3/8 port, and mounting interface, so it drops directly into existing fixtures.
The 80mm bore uses a G3/8 port. At 0.5MPa it provides 2513N push and 2268N pull force. At 0.7MPa push is 3518N, and at 0.9MPa it is 4523N. The theoretical maximum force is 513kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX165
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX165 replacement — usually within 7-8 hours.