This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX500, 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 SI80BX500
The AirTAC SI80 Standard Air Cylinder SI80BX500 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 SAI80BX500, 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 → SAI80BX500
- 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 SI80BX500
The AirTAC SI80BX500 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 500mm stroke. It delivers 2513N push and 2268N pull at 0.5MPa via a G3/8 port. The direct replacement is the SAI80BX500, sharing the same interface, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU uses a SUS304 stainless rod (-B) and lacks a magnet (-S), so it cannot take a CS1-B/DS1-B sensor.
Airtac SI80 Standard Air Cylinder SI80BX500 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX500 |
| 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 SAI80BX500 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 SAI80BX500 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 SI80BX500
| 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 SI80BX500 Is Used
Long-Stroke Diversion
Ideal for pushing heavy pallets off a main conveyor line over a 500mm travel distance, utilising the 2513N push force at 0.5MPa.
Press Ejection
Ejects formed metal parts from a press bed, where the 36mm adjustable air cushions absorb kinetic energy at the stroke ends.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX500 with the SAI80BX500
To replace the SI80BX500, order the SAI80BX500. Confirm the ISO 15552 mounting interface, 500mm stroke, G3/8 port, and SUS304 rod. Because this SKU lacks a magnet, it cannot accept position sensors. If you need load holding on air loss, note that standard cushions only decelerate; use an external pilot check valve or the SAIL/BSAI lock variant. For the 500mm stroke, use external guides to prevent rod bending. Neighbouring bores: 63mm offers 1559N [email protected]; 100mm offers 3927N [email protected].
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX500
- ✓ 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 SI80BX500 FAQ
Yes, the SI80BX500 is discontinued. The direct replacement is the SAI80BX500. It is dimensionally interchangeable per ISO 15552, matching the 80mm bore, 500mm stroke, 2513N force, G3/8 port, and mounting accessories.
The G3/8 port feeds the 80mm bore, yielding 2513N push and 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a max force of 513kgf at 1.0MPa. Speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX500
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX500 replacement — usually within 7-8 hours.