This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX1450S, 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 SI80BX1450S
The AirTAC SI80 Standard Air Cylinder SI80BX1450S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1450mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX1450S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1450 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX1450S
- 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 SI80BX1450S
The AirTAC SI80BX1450S is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore, 1450mm stroke, and a SUS304 stainless piston rod. Delivering 2513N push force at 0.5MPa, it is replaced by the SAI80BX1450S direct. This SAI upgrade shares the exact ISO 15552 mounting interface, G3/8 port, and output force, fitting existing fixtures seamlessly.
The SAI revision introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also adds SAIL and BSAI lock variants the SI lacked. This -S model retains a piston magnet for legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80BX1450S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX1450S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX1450S |
| Bore size | Ø80 mm |
| Stroke | 1450 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 SAI80BX1450S 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 SAI80BX1450S 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 SI80BX1450S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1450 | 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 SI80BX1450S Is Used
Long-Stroke Diversion
Actuates large pusher arms across wide conveyor belts, utilizing the 1450mm stroke to reroute heavy pallets efficiently.
High-Reach Lifting
Elevates materials to upper tier storage racks, using the 2513N push force and SUS304 rod for reliable vertical movement.
Automated Assembly Transfer
Shifts heavy automotive sub-assemblies between machining stations, benefiting from the robust ISO 15552 mounting profile.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX1450S with the SAI80BX1450S
To replace the SI80BX1450S, order the SAI80BX1450S, confirming the ISO 15552 interface, 80mm bore, 1450mm stroke, G3/8 port, and mounting accessory. The -S magnet and -B SUS304 rod are retained. For sizing, a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding, use an external rod lock or pilot check valve, or specify the SAIL/BSAI lock variant. At 1450mm, prevent rod bending by using an external guide to manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX1450S
- ✓ 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 SI80BX1450S FAQ
Yes, the SI80BX1450S is discontinued. The direct replacement is the SAI80BX1450S, which shares the identical ISO 15552 mounting interface, 80mm bore, 1450mm stroke, output force, and G3/8 port.
It features a G3/8 air port and provides 2513N push / 2268N pull at 0.5MPa, 3518N push at 0.7MPa, and a theoretical maximum force of 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX1450S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX1450S replacement — usually within 7-8 hours.