This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX1000S, 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 SI80BX1000S
The AirTAC SI80 Standard Air Cylinder SI80BX1000S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1000mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX1000S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1000 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX1000S
- 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 SI80BX1000S
The AirTAC SI80BX1000S is a discontinued double-acting ISO 15552 profile cylinder featuring a SUS304 stainless piston rod and a 1000 mm stroke. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80BX1000S, a direct replacement retaining the exact bore, stroke, output force, port size, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade introduces a refined piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also expands functionality with SAIL, SAIF, and BSAI lock variants that the original SI line lacked.
Airtac SI80 Standard Air Cylinder SI80BX1000S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX1000S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX1000S |
| Bore size | Ø80 mm |
| Stroke | 1000 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 SAI80BX1000S 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 SAI80BX1000S 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 SI80BX1000S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1000 | 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 SI80BX1000S Is Used
Long-Stroke Diversion
Pushes heavy pallets sideways across a 1-meter conveyor lane using the full 1000 mm travel and 2513 N thrust.
Elevating Platform
Lifts vertical loads up to 128 kg in automated storage systems, relying on the SUS304 rod for washdown corrosion resistance.
Large Door Actuation
Opens and closes heavy industrial machine guard doors over an extended 1000 mm span with adjustable end cushions.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX1000S with the SAI80BX1000S
To replace the SI80BX1000S, order the SAI80BX1000S and verify your ISO 15552 mounting interface, bore, and 1000 mm stroke. The G3/8 port and M20x1.5 rod thread remain identical. Because this is a 1000 mm stroke, external guides are strongly recommended to prevent rod bending and excessive side loads. Sizing options: if less force is needed, a 63 mm bore yields 1559 N push at 0.5 MPa; if more force is needed, a 100 mm bore yields 3927 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. The -S magnet works with legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX1000S
- ✓ 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 SI80BX1000S FAQ
Yes, the SI80BX1000S is discontinued. The direct replacement is the SAI80BX1000S. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 1000 mm stroke, G3/8 port, and mounting fixtures.
It features a G3/8 air port and M20x1.5 rod thread. Force ratings are 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 SAI80BX1000S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX1000S replacement — usually within 7-8 hours.