This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X193SN, 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 SI63X193SN
The AirTAC Airtac SI63 Standard Cylinder SI63X193SN is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 193mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X193SN, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke193 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X193SN
- 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 SI63X193SN
The AirTAC SI63X193SN is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 193 mm stroke. It delivers 1559 N push force at 0.5 MPa through a G3/8 port. The direct replacement is the SAI63X193SN, matching the bore, stroke, output force, port and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The NBR seal handles -20 to +70 C, while Viton H extends this to 150 C. The installed magnet supports legacy CS1-B/DS1-B switches.
Airtac SI63 Standard Cylinder SI63X193SN Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X193SN |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X193SN |
| Bore size | Ø63 mm |
| Stroke | 193 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 SAI63X193SN 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 SAI63X193SN 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 SI63X193SN
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×193 | 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 SI63X193SN Is Used
Mid-Tonnage Pressing
Applies 1559 N of push force at 0.5 MPa for seating bearings, stamping light tags, or clinching sheet metal panels in automated cells.
Package Diversion
Actuates 79 kg vertical lift gates or routing arms on packaging lines, using the 193 mm stroke to clear product profiles safely.
Pallet Stops
Raises and lowers 63 mm bore end-stops on roller conveyors, securely halting pallets up to the safe 935 N working load limit.
Replacing the Airtac SI63 Standard Cylinder SI63X193SN with the SAI63X193SN
To replace this SI63X193SN, order the SAI63X193SN. Verify the ISO 15552 mounting interface, 63 mm bore, 193 mm nonstandard stroke, G3/8 port (PT/G/NPT thread), and the -S magnet for sensors. If you need a larger bore, the 80 mm yields 2513 N push at 0.5 MPa; if smaller, the 50 mm provides 982 N. A plain cylinder drifts 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. For this 193 mm stroke, ensure guide alignment to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X193SN
- ✓ 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 SI63X193SN FAQ
Yes, the SI63X193SN is discontinued. The direct replacement is the SAI63X193SN. It is dimensionally interchangeable per ISO 15552, retaining the same 63 mm bore, 193 mm stroke, output force, G3/8 port, and mounting interface.
The 63 mm bore uses a G3/8 port. At 0.5 MPa it pushes 1559 N and pulls 1402 N. At 0.7 MPa it pushes 2182 N, and 2805 N at 0.9 MPa. The theoretical maximum force is 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X193SN
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X193SN replacement — usually within 7-8 hours.