This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X192S, 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 SI63X192S
The AirTAC Airtac SI63 Standard Cylinder SI63X192S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 192mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X192S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke192 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X192S
- 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 SI63X192S
The AirTAC SI63X192S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 192 mm stroke, delivering 1559 N push force at 0.5 MPa via its G3/8 port. AirTAC replaced this legacy unit with the SAI63X192S, a direct upgrade retaining the exact same mounting interface, output force, and dimensions.
The SAI successor features an upgraded 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 or valve variants absent from the original SI line.
Airtac SI63 Standard Cylinder SI63X192S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X192S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X192S |
| Bore size | Ø63 mm |
| Stroke | 192 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 SAI63X192S 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 SAI63X192S 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 SI63X192S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×192 | 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 SI63X192S Is Used
Clamping Fixtures
Secures heavy machined parts during milling with 1559 N of push force, utilizing the built-in magnet for position confirmation.
Package Diverting
Pushes cartons off a main belt at 192 mm stroke, relying on the adjustable air cushions to prevent end-of-stroke impact.
Pallet Stops
Acts as a pneumatic stop gate for inbound pallets, holding stable under pressure with its robust 20 mm carbon steel rod.
Replacing the Airtac SI63 Standard Cylinder SI63X192S with the SAI63X192S
To replace the SI63X192S, order the SAI63X192S and confirm the ISO 15552 interface, 63 mm bore, 192 mm stroke, G3/8 port, and the -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches). When sizing, note the 63 mm bore yields 1559 N push at 0.5 MPa; dropping to a 50 mm bore gives 982 N, while an 80 mm bore provides 2513 N. Because this is a double-acting cylinder, it will not hold a load without live air—the cushion only decelerates. For load holding, specify the SAIL or BSAI lock variant, or use an external pilot check valve. Since the 192 mm stroke is under 300 mm, severe rod-bending side loads are minimal, but always guide the payload to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X192S
- ✓ 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 SI63X192S FAQ
Yes, the SI63X192S is discontinued. The direct replacement is the SAI63X192S, which maintains the identical ISO 15552 mounting interface, 63 mm bore, 192 mm stroke, G3/8 port, and output force.
It features a G3/8 port and delivers 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X192S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X192S replacement — usually within 7-8 hours.