This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X223S, 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 SI63X223S
The AirTAC Airtac SI63 Standard Cylinder SI63X223S 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 SAI63X223S, 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 → SAI63X223S
- 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 SI63X223S
The AirTAC SI63X223S is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 223mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa through a G3/8 port. The direct replacement is the SAI63X223S, sharing the same interface, force, and mounting.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SI-S magnet works with CS1-B/DS1-B switches, while SAIL lock or BSAI clamp-lock variants offer load holding.
Airtac SI63 Standard Cylinder SI63X223S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X223S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X223S |
| 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 SAI63X223S 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 SAI63X223S 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 SI63X223S
| 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 SI63X223S Is Used
Clamping Fixtures
Holds workpieces securely in machining stations, utilizing its 1559N push force to maintain rigid positioning during milling or drilling operations.
Package Diverting
Actuates routing gates on 63mm bore assembly lines, providing reliable 223mm stroke extension to redirect heavy goods between processing lanes.
Pallet Stopping
Deploys robust stop arms at end-of-line conveyors, using its 1402N pull force to absorb the kinetic impact of incoming pallets safely.
Replacing the Airtac SI63 Standard Cylinder SI63X223S with the SAI63X223S
To replace the SI63X223S, order the SAI63X223S. Verify the ISO 15552 mounting interface, 63mm bore, 223mm stroke, G3/8 port (PT/G/NPT), M16x1.5 rod thread, and the -S magnet for CS1-B/DS1-B sensors. If downsizing, a 50mm bore yields 982N push; if upsizing, an 80mm bore gives 2513N. A plain cylinder drifts on air loss—the cushion only decelerates—so use the SAIL lock variant or an external pilot check valve for held loads. Stroke is under the 300mm side-load threshold, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X223S
- ✓ 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 SI63X223S FAQ
Yes, the AirTAC SI63X223S is discontinued. The direct replacement is the SAI63X223S. It is dimensionally interchangeable per ISO 15552, matching the 63mm bore, 223mm stroke, G3/8 port, output force, and mounting accessories exactly.
This double-acting cylinder uses a G3/8 air port. At 0.5MPa it provides 1559N push and 1402N pull force. At 0.7MPa push is 2182N, and at 0.9MPa it is 2805N. The theoretical maximum force is 318kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X223S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X223S replacement — usually within 7-8 hours.