This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X63, 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 SI80X63
The AirTAC SI80 Standard Air Cylinder SI80X63 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 63mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X63, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke63 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X63
- 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 SI80X63
The AirTAC SI80X63 is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 63 mm stroke. Delivering 2513 N push force at 0.5 MPa through a G3/8 port, it is replaced by the SAI80X63. This direct successor shares the exact interface, bore, stroke, force, port and mounting hardware.
The SAI80X63 upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. This SKU lacks the -S magnet, so it cannot accept CS1-B/DS1-B sensors. For load holding, the SAIL or BSAI lock variants are needed, as standard cushions only decelerate.
Airtac SI80 Standard Air Cylinder SI80X63 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X63 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X63 |
| Bore size | Ø80 mm |
| Stroke | 63 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 SAI80X63 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 SAI80X63 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 SI80X63
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×63 | 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 SI80X63 Is Used
Press Fit Tooling
Drives medium-tonnage press operations and bushing insertion tasks, utilizing the 2513 N push force at 0.5 MPa to seat components reliably.
Pallet Diversion
Actuates heavy-duty lane diverters and sorting gates on packaging lines, where the 36 mm adjustable cushions absorb end-of-stroke kinetic energy.
Replacing the Airtac SI80 Standard Air Cylinder SI80X63 with the SAI80X63
To replace the SI80X63, order the SAI80X63. Verify the ISO 15552 mounting interface, 80 mm bore, 63 mm stroke, G3/8 port (PT/G/NPT), and M20x1.5 rod thread. Because this specific SKU has no -S magnet, it cannot support position sensing; if switches are required, select an SAI80X63S and use current AirTAC switches. If sizing down, the 63 mm bore yields 1559 N push at 0.5 MPa; sizing up to 100 mm provides 3927 N. The standard cylinder does not hold load without live air, so for drift prevention choose the SAIL lock, BSAI clamp-lock, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X63
- ✓ 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 SI80X63 FAQ
Yes, the AirTAC SI80X63 is discontinued and end-of-life. The direct replacement is the SAI80X63. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 63 mm stroke, output force, G3/8 port, and mounting accessories.
The SI80X63 features a G3/8 air port and M20x1.5 rod thread. It 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 maximum force of 513 kgf at 1.0 MPa.
Request a Quote for the SAI80X63
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X63 replacement — usually within 7-8 hours.