This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX225S, 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 SI80BX225S
The AirTAC SI80 Standard Air Cylinder SI80BX225S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 225mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX225S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke225 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX225S
- 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 SI80BX225S
The AirTAC SI80BX225S is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 225 mm stroke. It delivers 2513 N push force at 0.5 MPa via a G3/8 port. The direct replacement is the SAI80BX225S, matching the interface, force, and stroke perfectly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. This SI unit has a SUS304 stainless rod and a magnet for CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80BX225S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX225S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX225S |
| Bore size | Ø80 mm |
| Stroke | 225 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 SAI80BX225S 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 SAI80BX225S 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 SI80BX225S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×225 | 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 SI80BX225S Is Used
Package Diverting
Actuates routing gates on high-speed packaging lines, using the 2513 N thrust to push heavy cartons smoothly onto auxiliary chutes.
Pallet Pressing
Applies consistent downward clamping pressure to settle components onto pallets, leveraging the 80 mm bore's robust force profile.
Stopper Gate Control
Raises and lowers heavy stopper blades in distribution hubs, where the SUS304 rod provides reliable resistance against humid conditions.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX225S with the SAI80BX225S
To replace this SI80BX225S, order the SAI80BX225S. Confirm the ISO 15552 mounting interface, the 80 mm bore, 225 mm stroke, G3/8 port, and your specific mounting accessory. The -S magnet enables CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. The -B code denotes a SUS304 stainless rod for corrosion resistance. If sizing up or down, note the 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 225 mm stroke, guide rods are advised to prevent side-load bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX225S
- ✓ 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 SI80BX225S FAQ
Yes, the AirTAC SI80BX225S is discontinued. The direct replacement is the SAI80BX225S. It is dimensionally interchangeable per ISO 15552, offering the same 80 mm bore, 225 mm stroke, G3/8 port, and mounting interface.
This double-acting cylinder features a G3/8 air port. It delivers 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 maximum force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX225S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX225S replacement — usually within 7-8 hours.