This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X480S, 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 SI63X480S
The AirTAC Airtac SI63 Standard Cylinder SI63X480S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 480mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X480S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke480 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X480S
- 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 SI63X480S
The AirTAC SI63X480S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 480 mm stroke. It delivers 1559 N push force at 0.5 MPa via a G3/8 port. AirTAC replaced this legacy unit with the SAI63X480S, a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, force, and accessories.
The SAI upgrade features a new piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also adds SAIL lock, SAIF valve, and BSAI clamp variants the SI lacked.
Airtac SI63 Standard Cylinder SI63X480S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X480S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X480S |
| Bore size | Ø63 mm |
| Stroke | 480 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 SAI63X480S 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 SAI63X480S 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 SI63X480S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×480 | 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 SI63X480S Is Used
Long-Stroke Diversion
Pushes packages across transfer lines using the full 480 mm travel, relying on the 1559 N thrust to overcome lateral friction.
Clamp Actuation
Drives tooling arms in machining cells where the 63 mm bore provides sufficient hold without over-stressing the fixture.
Replacing the Airtac SI63 Standard Cylinder SI63X480S with the SAI63X480S
To replace the SI63X480S, order the SAI63X480S. Confirm the ISO 15552 mounting interface, the 63 mm bore, 480 mm stroke, M16x1.5 rod thread, G3/8 port (PT/G/NPT), and the -S magnet for CS1-B/DS1-B sensors. If you need more force, the 80 mm bore offers 2513 N push at 0.5 MPa; if less is needed, the 50 mm bore provides 982 N. For the 480 mm stroke, use external guides to prevent rod bending and side loads. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X480S
- ✓ 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 SI63X480S FAQ
Yes, the SI63X480S is discontinued. The direct replacement is the SAI63X480S. It shares the same ISO 15552 mounting interface, 63 mm bore, 480 mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly.
The G3/8 port supplies a 1559 N push and 1402 N pull at 0.5 MPa. At 0.7 MPa push is 2182 N, at 0.9 MPa it is 2805 N, and the theoretical max is 318 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X480S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X480S replacement — usually within 7-8 hours.