This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX800, 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 SI80BX800
The AirTAC SI80 Standard Air Cylinder SI80BX800 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 SAI80BX800, 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 → SAI80BX800
- 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 SI80BX800
The AirTAC SI80BX800 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 800mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa, using a G3/8 port and a SUS304 stainless steel rod. AirTAC replaced this EOL unit with the SAI80BX800, a direct sharing the exact ISO 15552 mounting interface, force, and dimensions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor.
Airtac SI80 Standard Air Cylinder SI80BX800 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX800 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX800 |
| 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 SAI80BX800 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 SAI80BX800 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 SI80BX800
| 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 SI80BX800 Is Used
Long-Stroke Diversion
Ideal for pushing heavy pallets across a 800mm gap where the 2513N thrust at 0.5MPa easily overcomes friction on the conveyor lines.
Heavy Press Ejection
Ejects formed metal parts from a 1500-ton press, relying on the adjustable 36mm air cushions to decelerate the payload at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX800 with the SAI80BX800
To replace the SI80BX800, order the SAI80BX800. Verify the ISO 15552 mounting interface, 80mm bore, 800mm stroke, G3/8 port, and SUS304 rod. Because this is an 800mm stroke, add external guides to prevent rod-bending under side-loads. If sizing up or down, neighbouring bores are 63mm (1559N [email protected]) and 100mm (3927N [email protected]). This non-magnetic SKU cannot take a switch. For load holding, the cushion only decelerates; use an external pilot check valve or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX800
- ✓ 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 SI80BX800 FAQ
Yes, the AirTAC SI80BX800 is discontinued. The direct replacement is the SAI80BX800. It shares the identical ISO 15552 mounting interface, 80mm bore, 800mm stroke, output force, and G3/8 port, fitting directly into your existing fixtures.
This double-acting cylinder features a G3/8 air port. The thrust ratings are: 2513N push and 2268N pull at 0.5MPa; 3518N push at 0.7MPa; 4523N push at 0.9MPa; and a theoretical maximum force of 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX800
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX800 replacement — usually within 7-8 hours.