This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X470S, 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 SI63X470S
The AirTAC Airtac SI63 Standard Cylinder SI63X470S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 470mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X470S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke470 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X470S
- 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 SI63X470S
The AirTAC SI63X470S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 470 mm stroke. It delivers 1559 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI63X470S, matching the exact bore, stroke, force, port, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent in the SI line. This -S model includes a piston magnet for CS1-B/DS1-B switches, while the SAI uses current AirTAC switches.
Airtac SI63 Standard Cylinder SI63X470S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X470S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X470S |
| Bore size | Ø63 mm |
| Stroke | 470 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 SAI63X470S 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 SAI63X470S 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 SI63X470S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×470 | 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 SI63X470S Is Used
Material Diversion
Drives diverter gates on packaging lines, utilizing the 1559 N push force to reliably pivot heavy product flows at high speeds.
Pallet Handling
Actuates 470 mm stroke lifting arms or positioning stops within automated storage systems, moving loads safely under the 79 kg vertical limit.
Press Ejection
Ejects machined components from fixtures using adjustable end cushions to decelerate the 20 mm rod smoothly over the long stroke.
Replacing the Airtac SI63 Standard Cylinder SI63X470S with the SAI63X470S
To replace the SI63X470S, order the SAI63X470S direct cylinder. Confirm the ISO 15552 mounting interface, 63 mm bore, 470 mm stroke, G3/8 port, and your specific mounting accessory (LB, FA, TC, etc.). The -S suffix indicates a magnet for legacy CS1-B/DS1-B sensors; the SAI replacement accommodates current AirTAC switches. For sizing, a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. A plain cylinder does not hold load on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads. At 470 mm, prevent rod bending by guiding the load externally to avoid side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X470S
- ✓ 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 SI63X470S FAQ
Yes, the SI63X470S is discontinued. The direct replacement is the AirTAC SAI63X470S. It is dimensionally interchangeable per ISO 15552, retaining the same 63 mm bore, 470 mm stroke, output force, G3/8 port, and mounting interface.
This double-acting cylinder features a G3/8 air port and a 20 mm piston rod. It generates 1559 N push and 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical maximum of 318 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X470S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X470S replacement — usually within 7-8 hours.