This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX800SH, 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 SI80BX800SH
The AirTAC SI80 Standard Air Cylinder SI80BX800SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 800mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX800SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke800 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX800SH
- 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 SI80BX800SH
The AirTAC SI80BX800SH is a discontinued double-acting ISO 15552 profile cylinder featuring an 80mm bore, 800mm stroke, SUS304 stainless rod, magnet, and Viton H high-temp seals. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI80BX800SH. This direct successor shares identical ISO 15552 mounting, bore, stroke, and force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity. The SAI family also adds SAIL, SAIF, and BSAI lock variants. Your -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI80 Standard Air Cylinder SI80BX800SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX800SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX800SH |
| Bore size | Ø80 mm |
| Stroke | 800 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 SAI80BX800SH 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 SAI80BX800SH 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 SI80BX800SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×800 | 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 SI80BX800SH Is Used
High-Temp Diverters
Actuating diverter gates on hot conveyors where the Viton H seal and SUS304 rod withstand ambient heat up to 150 C.
Pallet Pushers
Pushing heavy pallets 800mm along accumulation lines, matching the 2513 N thrust at 0.5 MPa safely.
Long-Stroke Lowering
Lowering product stacks over 800mm, requiring external guide rails to prevent rod bending on the 25mm rod.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX800SH with the SAI80BX800SH
To replace the SI80BX800SH, order the SAI80BX800SH, confirming the ISO 15552 interface, 80mm bore, 800mm stroke, G3/8 port, and mounting accessory. The -B rod is SUS304 and -H is Viton (0-150 C). With an 800mm stroke, use external guides to prevent rod bending and side-load wear. If sizing down, a 63mm bore yields 1559 N push; if sizing up, a 100mm bore yields 3927 N. A plain cylinder drifts without air; for load holding, use the SAIL/BSAI lock variant or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX800SH
- ✓ 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 SI80BX800SH FAQ
Yes, the SI80BX800SH is discontinued. The direct replacement is the SAI80BX800SH. It shares the same ISO 15552 mounting interface, 80mm bore, 800mm stroke, G3/8 port, and output force, fitting existing fixtures perfectly.
The G3/8 port feeds a 25mm rod yielding 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa push is 3518 N, and 4523 N at 0.9 MPa. The theoretical max force is 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX800SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX800SH replacement — usually within 7-8 hours.