This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX160, 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 SI80BX160
The AirTAC SI80 Standard Air Cylinder SI80BX160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX160, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX160
- 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 SI80BX160
The AirTAC SI80BX160 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore, 160mm stroke, and a SUS304 stainless steel piston rod. Delivering 2513N push force at 0.5MPa, it is replaced by the SAI80BX160 direct cylinder, sharing the exact ISO 15552 mounting interface, G3/8 port, and M20x1.5 rod thread. The SAI upgrade features an improved piston seal using two Y-shaped one-way elements for low start-up pressure and long life. This no-magnet SKU cannot accept a sensor, unlike legacy CS1-B/DS1-B switches.
For higher temperatures, Viton H seals raise the operating range to 0-150C. The plain profile design lacks load-holding capability; the cushion only decelerates. For secure holding, use an external rod lock or the SAIL/BSAI lock variants the SAI family offers.
Airtac SI80 Standard Air Cylinder SI80BX160 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX160 |
| Bore size | Ø80 mm |
| Stroke | 160 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 SAI80BX160 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 SAI80BX160 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 SI80BX160
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×160 | 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 SI80BX160 Is Used
Stainless Rod Clamping
Uses the SUS304 rod for wash-down resistant clamping of heavy parts, delivering 2513N force at 0.5MPa.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX160 with the SAI80BX160
To replace the SI80BX160, order the SAI80BX160, confirming the ISO 15552 interface, 80mm bore, 160mm stroke, G3/8 port, and SUS304 rod. Since this SKU lacks a magnet, it cannot take a switch; order a -S model if sensing is needed. Size both ways: a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. Note that a plain cylinder drifts without live air; the cushion only decelerates. Use an external pilot check valve or the SAIL/BSAI lock variant for holding. At 160mm stroke, side-load is minimal, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX160
- ✓ 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 SI80BX160 FAQ
Yes, the SI80BX160 is discontinued. The direct replacement is the SAI80BX160, matching the ISO 15552 mounting interface, bore, stroke, force, and G3/8 port.
It has a G3/8 port. Force ratings are 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a theoretical max of 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX160
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX160 replacement — usually within 7-8 hours.