This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX860S, 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 SI80BX860S
The AirTAC SI80 Standard Air Cylinder SI80BX860S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 860mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX860S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke860 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX860S
- 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 SI80BX860S
The AirTAC SI80BX860S is a discontinued double-acting ISO 15552 profile cylinder featuring an 80mm bore, 860mm stroke, SUS304 stainless piston rod, and a piston magnet. Delivering 2513 N push force at 0.5 MPa, it is replaced by the SAI80BX860S. This direct upgrade shares the exact ISO 15552 mounting interface, G3/8 port, and M20x1.5 rod thread, fitting existing fixtures perfectly.
The SAI replacement upgrades longevity with two Y-shaped one-way piston seals for low start-up pressure. Note that plain cylinders drift without live air; for load holding, explore the SAIL or BSAI lock variants. The -S magnet supports legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80BX860S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX860S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX860S |
| Bore size | Ø80 mm |
| Stroke | 860 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 SAI80BX860S 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 SAI80BX860S 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 SI80BX860S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×860 | 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 SI80BX860S Is Used
Long-Stroke Diversion
Pushes heavy pallets laterally across packaging lines using the 860mm stroke and 2513 N force at 0.5 MPa.
Stainless Rod Washdown
Actuates testing fixtures in moist environments using the SUS304 rod, with Viton H seals for high-heat zones.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX860S with the SAI80BX860S
To replace the SI80BX860S, order the SAI80BX860S, confirming the ISO 15552 interface, 80mm bore, 860mm stroke, G3/8 port, and SUS304 rod. If downsizing, a 63mm bore yields 1559 N push at 0.5 MPa; if upsizing, a 100mm bore provides 3927 N. Because 860mm exceeds 300mm, use external guides to prevent rod bending under side loads. The cushion only decelerates; it does not hold load. For secure holding without air, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The SAIF variant (bores 32-100) integrates a 4M valve if self-actuation is needed.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX860S
- ✓ 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 SI80BX860S FAQ
Yes, the SI80BX860S is discontinued. The direct replacement is the SAI80BX860S. It shares the same ISO 15552 mounting interface, 80mm bore, 860mm stroke, output force, G3/8 port, and mounting accessories, fitting existing fixtures perfectly.
The 80mm bore uses a G3/8 port. It generates 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 max of 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX860S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX860S replacement — usually within 7-8 hours.