This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X750, 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 SI80X750
The AirTAC SI80 Standard Air Cylinder SI80X750 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 750mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X750, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X750
- 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 SI80X750
The AirTAC SI80X750 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 750mm stroke. Delivering 2513 N push force at 0.5 MPa via a G3/8 port, it is replaced by the SAI80X750. This direct upgrade shares identical ISO 15552 mounting dimensions, stroke and output force, fitting existing fixtures perfectly.
The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. For load holding on air loss, use an external rod lock or the SAIL lock variant, as cushions only decelerate.
Airtac SI80 Standard Air Cylinder SI80X750 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X750 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X750 |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAI80X750 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 SAI80X750 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 SI80X750
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×750 | 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 SI80X750 Is Used
Long-Stroke Diversion
Drives large packages across wide conveyor belts with its 750mm travel and 2513 N push force.
Pallet Handling
Indexes heavy pallets into wrapping stations, utilizing the robust 80mm ISO 15552 profile barrel.
Replacing the Airtac SI80 Standard Air Cylinder SI80X750 with the SAI80X750
To replace the SI80X750, order the SAI80X750 direct. Verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), the G3/8 port thread (PT/G/NPT) and the 750mm stroke. Because this SKU has no -S magnet, it cannot support position sensing; if switches are needed, select an SAI80X750S and use current AirTAC sensors. At 0.5 MPa it yields 2513 N push and 2268 N pull; sizing down to a 63mm bore drops force to 1559 N, while a 100mm bore increases it to 3927 N. For vertical loads, note a plain cylinder drifts without air; add a pilot check valve or explore SAIL/BSAI lock variants. Finally, at 750mm stroke, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X750
- ✓ 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 SI80X750 FAQ
Yes, the SI80X750 is discontinued. The direct replacement is the SAI80X750, a current-production ISO 15552 profile cylinder. It matches the 80mm bore, 750mm stroke, 2513 N force, G3/8 port and mounting interface, fitting existing fixtures perfectly.
The 80mm bore uses a G3/8 port and features a 25mm rod with an M20x1.5 thread. Force output is 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa.
Request a Quote for the SAI80X750
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X750 replacement — usually within 7-8 hours.