This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X80SCB, 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 SI63 Standard Cylinder SI63X80SCB
The AirTAC Airtac SI63 Standard Cylinder SI63X80SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 80mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X80SCB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X80SCB
- 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 SI63 Standard Cylinder SI63X80SCB
The AirTAC SI63X80SCB is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa via a G3/8 port. AirTAC replaced it with the SAI63X80SCB, a direct upgrade retaining the exact bore, force, and CB clevis mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The SAI family also adds SAIL lock, SAIF valve, and BSAI clamp variants. Your -S magnet works with CS1-B/DS1-B sensors.
Airtac SI63 Standard Cylinder SI63X80SCB Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X80SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X80SCB |
| Bore size | Ø63 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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, 30 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI63X80SCB carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
The SAI63X80SCB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI63 Standard Cylinder SI63X80SCB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×80 | 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 SI63 Standard Cylinder SI63X80SCB Is Used
Clamp Actuation
Secures heavy workpieces on machining fixtures using the 1559 N push force at 0.5 MPa.
Package Diverting
Drives 80 mm stroke diverting arms to route medium-weight goods across handling lines.
Pallet Stopping
Deploys a 63 mm bore stopper gate to halt pallets at 30-800 mm/s before a workstation.
Replacing the Airtac SI63 Standard Cylinder SI63X80SCB with the SAI63X80SCB
To replace the SI63X80SCB, order the SAI63X80SCB. It is dimensionally interchangeable per ISO 15552, matching the 63 mm bore, 80 mm stroke, G3/8 port, M16x1.5 rod thread, and CB clevis mount. The -S magnet enables CS1-B/DS1-B sensors (the SAI uses current AirTAC switches). At 0.5 MPa, push is 1559 N; if undersized, the 80 mm bore yields 2513 N. For load holding on air loss, note the cushion only decelerates; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X80SCB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI63 Standard Cylinder SI63X80SCB FAQ
Yes, the SI63X80SCB is discontinued. The direct replacement is the SAI63X80SCB. It shares the identical ISO 15552 mounting interface, 63 mm bore, 80 mm stroke, G3/8 port, and CB clevis mount, fitting existing fixtures perfectly.
This 63 mm bore cylinder uses a G3/8 air port. It generates 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, and 2805 N push at 0.9 MPa. The theoretical maximum force is 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X80SCB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X80SCB replacement — usually within 7-8 hours.