This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX150, 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 SI80BX150
The AirTAC SI80 Standard Air Cylinder SI80BX150 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX150, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX150
- 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 SI80BX150
The AirTAC SI80BX150 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 150mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, features a SUS304 stainless piston rod (-B), and uses a G3/8 air port. The direct replacement is the SAI80BX150, matching the bore, stroke, force, port, and ISO 15552 mounting interface.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI lock variants absent in the SI line. Note this SKU lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor.
Airtac SI80 Standard Air Cylinder SI80BX150 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX150 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX150 |
| Bore size | Ø80 mm |
| Stroke | 150 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 SAI80BX150 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 SAI80BX150 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 SI80BX150
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×150 | 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 SI80BX150 Is Used
Stainless Rod Actuation
Ideal for packaging machinery requiring the SUS304 rod option to resist moisture and corrosion while delivering 2513N push force.
Mid-Stroke Pressing
Provides consistent 150mm travel pressing action for assembly stations, utilizing adjustable 36mm air cushions to decelerate heavy loads.
Material Diversion
Drives heavy-duty conveyor diverters and gates where a robust 80mm bore and G3/8 porting ensure rapid, high-force actuation.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX150 with the SAI80BX150
To replace the SI80BX150, order the SAI80BX150. Verify the ISO 15552 mounting interface, 150mm stroke, G3/8 port (PT/G/NPT thread), and SUS304 rod (-B). This SKU has no magnet, so it cannot support position sensing; if needed, switch to an -S SAI model. Sizing both ways: the 80mm bore yields 2513N push at 0.5MPa, while the adjacent 63mm bore yields 1559N. For load holding, note a plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 150mm stroke, rod bending is minimal, but ensure adequate guidance for side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX150
- ✓ 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 SI80BX150 FAQ
Yes, the AirTAC SI80BX150 is discontinued. The direct replacement is the SAI80BX150. It features the same ISO 15552 mounting interface, 80mm bore, 150mm stroke, output force, G3/8 port, and SUS304 rod, fitting existing fixtures perfectly.
The 80mm bore uses a G3/8 air port. It generates 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a maximum theoretical force of 513kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX150
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX150 replacement — usually within 7-8 hours.