This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X223SN, 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 SI63X223SN
The AirTAC SI63 Standard Cylinder SI63X223SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 223mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X223SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke223 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X223SN
- 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 SI63X223SN
The AirTAC SI63X223SN is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 223 mm stroke. It delivers 1559 N push and 1402 N pull at 0.5 MPa via a G3/8 port. The direct replacement is the SAI63X223SN, matching the interface, bore, stroke, force, and mounting.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SI -S magnet works with legacy CS1-B/DS1-B sensors, while the -N NBR seal handles -20 to +70 C. For load holding, note the air cushion only decelerates; use an external rod lock or pilot check valve.
Airtac SI63 Standard Cylinder SI63X223SN Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X223SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X223SN |
| Bore size | Ø63 mm |
| Stroke | 223 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 SAI63X223SN 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 SAI63X223SN 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 SI63X223SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×223 | 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 SI63X223SN Is Used
Mid-Tonnage Clamping
Secures heavy workpieces during machining with 1559 N of push force at 0.5 MPa, ensuring rigid holding without fixture deflection.
Pallet Diversion
Actuates routing gates and stops on assembly lines, utilizing the 223 mm stroke to clear or block product flow paths reliably.
Replacing the Airtac SI63 Standard Cylinder SI63X223SN with the SAI63X223SN
To replace the SI63X223SN, order the SAI63X223SN. Confirm the ISO 15552 mounting interface, 63 mm bore, 223 mm stroke, G3/8 port (PT/G/NPT), and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors, and the -N denotes the NBR seal. Sizing both ways: a 50 mm bore yields 982 N [email protected], while an 80 mm bore yields 2513 N. For load holding on air loss, the cushion only decelerates; add an external rod lock, pilot check valve, or use the SAIL/BSAI lock variants. The 223 mm stroke is under the 300 mm side-load threshold, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X223SN
- ✓ 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 SI63X223SN FAQ
Yes, the AirTAC SI63X223SN is discontinued. The direct replacement is the SAI63X223SN. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the exact same 63 mm bore, 223 mm stroke, output force, G3/8 port, and mounting accessories.
This double-acting cylinder uses a G3/8 air port and generates 1559 N push / 1402 N pull at 0.5 MPa, 2182 N push at 0.7 MPa, 2805 N push at 0.9 MPa, and a theoretical max of 318 kgf at 1.0 MPa. It operates at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X223SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X223SN replacement — usually within 7-8 hours.