This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X430S, 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 SI80X430S
The AirTAC SI80 Standard Air Cylinder SI80X430S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 430mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X430S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke430 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X430S
- 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 SI80X430S
The AirTAC SI80X430S is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel, adjustable air cushions, and a built-in piston magnet. In this 80 mm bore class it delivers 2513 N push and 2268 N pull at 0.5 MPa, utilizing a G3/8 port and an M20x1.5 rod thread. AirTAC replaced the SI line with the SAI family, making SAI80X430S the direct replacement: identical ISO 15552 mounting interface, 430 mm stroke, force, and porting.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life, while retaining the CS1-B/DS1-B legacy sensor compatibility. If high-temperature operation is needed, a Viton H seal option extends the range up to 150 C.
Airtac SI80 Standard Air Cylinder SI80X430S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X430S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X430S |
| Bore size | Ø80 mm |
| Stroke | 430 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 SAI80X430S 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 SAI80X430S 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 SI80X430S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×430 | 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 SI80X430S Is Used
Pallet Diversion
Actuates heavy lane diverters on packaging lines, using the 2513 N push force to shift loaded pallets reliably.
Press Ejection
Drives long-stroke ejection pins in stamping presses, relying on adjustable 36 mm cushions to decelerate at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X430S with the SAI80X430S
To replace the SI80X430S, order the SAI80X430S. Verify the ISO 15552 mounting interface, 80 mm bore, 430 mm stroke, G3/8 port (PT/G/NPT thread), and the -S magnet for position sensing. Sizing both ways: a neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore offers 3927 N. Note that a 430 mm stroke requires external guides to prevent rod bending and side-load damage. A plain SAI cylinder does not hold load on air loss; for static holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X430S
- ✓ 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 SI80X430S FAQ
Yes, the SI80X430S is discontinued. The direct replacement is the SAI80X430S. It features the same ISO 15552 mounting interface, 80 mm bore, 430 mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
The 80 mm 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X430S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X430S replacement — usually within 7-8 hours.