This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX500SH, 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 SI80BX500SH
The AirTAC SI80 Standard Air Cylinder SI80BX500SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 500mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX500SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke500 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX500SH
- 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 SI80BX500SH
The AirTAC SI80BX500SH is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel. It delivers 2513 N push force at 0.5 MPa through a 25 mm SUS304 stainless rod. The direct replacement is the SAI80BX500SH, matching the 500 mm stroke, G3/8 port, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SI unit includes a high-temp Viton H seal (0-150 C) and a piston magnet for CS1-B/DS1-B switches.
Airtac SI80 Standard Air Cylinder SI80BX500SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX500SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX500SH |
| Bore size | Ø80 mm |
| Stroke | 500 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 SAI80BX500SH 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 SAI80BX500SH 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 SI80BX500SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×500 | 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 SI80BX500SH Is Used
Long-Stroke Diversion
Pushes heavy pallets laterally across a 500 mm transfer span where the 2513 N thrust at 0.5 MPa easily overcomes friction.
High-Temp Actuation
Operates packaging seals near heat tunnels using the Viton H seal, with the SUS304 rod resisting washdown corrosion.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX500SH with the SAI80BX500SH
To replace the SI80BX500SH, order the SAI80BX500SH. Confirm the ISO 15552 mounting interface, 80 mm bore, 500 mm stroke, G3/8 port, and your specific mounting accessory. The -S magnet enables current AirTAC switches, while the -B rod is SUS304 stainless. The -H seal provides Viton high-temperature resistance. At 0.5 MPa it yields 2513 N push; sizing down, a 63 mm bore gives 1559 N. Because this is a 500 mm stroke, use an external guide to prevent rod bending and side-load wear. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX500SH
- ✓ 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 SI80BX500SH FAQ
Yes, the SI80BX500SH is discontinued. The direct replacement is the SAI80BX500SH. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 80 mm bore, 500 mm stroke, G3/8 port, and output force.
It uses a G3/8 air port. Force output is 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 of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX500SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX500SH replacement — usually within 7-8 hours.