This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X730, 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 SI80X730
The AirTAC SI80 Standard Air Cylinder SI80X730 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 730mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X730, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke730 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X730
- 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 SI80X730
The AirTAC SI80X730 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 730mm stroke. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X730. This direct successor shares the exact ISO 15552 mounting interface, bore, stroke, output force, and port size. The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life.
Because this SKU lacks the -S magnet, it cannot accept a CS1-B or DS1-B sensor. The SAI family also introduces SAIL, SAIF, and BSAI lock/valve variants absent in the legacy line. Note that a standard cylinder drifts without live air; the cushion only decelerates. For load holding, use an external rod lock or SAIL/BSAI variant.
Airtac SI80 Standard Air Cylinder SI80X730 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X730 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X730 |
| Bore size | Ø80 mm |
| Stroke | 730 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 SAI80X730 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 SAI80X730 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 SI80X730
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×730 | 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 SI80X730 Is Used
Long-Stroke Diverters
Drives large sorting gates on packaging lines over the 730mm travel, using the 2513 N force to reliably push heavy cartons.
Pallet Handling Gates
Actuates heavy-duty pallet stops and routing mechanisms where the 80mm bore provides sufficient thrust to redirect loaded pallets.
Replacing the Airtac SI80 Standard Air Cylinder SI80X730 with the SAI80X730
To replace the SI80X730, order the SAI80X730. Verify the ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/8 port thread (PT/G/NPT), and the M20x1.5 rod thread. Since this SKU has no -S magnet, it cannot support position sensing; order the SAI80X730S if a switch is required. Sizing both ways: a 63mm bore yields 1559 N push at 0.5 MPa, while a 100mm bore yields 3927 N. The 730mm stroke is under the 1500mm max, but at this length you must prevent side-load and rod-bending by using external guides. A plain cylinder does not hold load without air; add a pilot check valve or explore the SAIL/BSAI lock variants for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X730
- ✓ 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 SI80X730 FAQ
Yes, the SI80X730 is discontinued. The direct replacement is the AirTAC SAI80X730. It shares the same ISO 15552 mounting interface, 80mm bore, 730mm stroke, output force, and G3/8 port, fitting directly into existing fixtures.
The G3/8 port delivers 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. The 25mm rod uses an M20x1.5 thread, and speed is 30-800 mm/s.
Request a Quote for the SAI80X730
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X730 replacement — usually within 7-8 hours.