This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X130S, 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 SI63X130S
The AirTAC Airtac SI63 Standard Cylinder SI63X130S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 130mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X130S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke130 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X130S
- 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 SI63X130S
The AirTAC SI63X130S is a discontinued double-acting ISO 15552 profile cylinder featuring a 63mm bore and 130mm stroke. It delivers 1559 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI63X130S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and port size. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long service life. Furthermore, the SAI family introduces variants the SI lacked, such as the SAIL air-released lock and BSAI clamp-lock. The included -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI replacement uses current AirTAC switches. Rod material options include carbon steel, SUS420J2, or SUS304.
Airtac SI63 Standard Cylinder SI63X130S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X130S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X130S |
| Bore size | Ø63 mm |
| Stroke | 130 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 SAI63X130S 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 SAI63X130S 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 SI63X130S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×130 | 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 SI63X130S Is Used
Clamping Fixtures
Secures heavy machining parts with 1559 N push force at 0.5 MPa, ensuring rigid holding during milling or drilling operations.
Package Diverters
Actuates routing gates on 50 kg assembly lines, using the 130mm stroke to push cartons cleanly onto secondary tracks.
Pallet Stops
Deploys a 20mm rod to halt inbound pallets at loading docks, absorbing kinetic energy via the 30mm adjustable air cushions.
Replacing the Airtac SI63 Standard Cylinder SI63X130S with the SAI63X130S
To replace the discontinued SI63X130S, order the SAI63X130S, confirming the ISO 15552 mounting interface, 63mm bore, 130mm stroke, G3/8 port (PT/G/NPT thread options), and the -S magnet for position sensing. If sizing down, a 50mm bore yields 982 N push at 0.5 MPa; if sizing up, an 80mm bore provides 2513 N. Remember that a plain cylinder does not hold load without live air—the cushion only decelerates. For load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 130mm stroke, side-load and rod-bending stresses are minimal, but always guide the load to prevent binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X130S
- ✓ 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 SI63X130S FAQ
Yes, the SI63X130S is discontinued. The direct replacement is the AirTAC SAI63X130S. It shares the identical ISO 15552 mounting interface, 63mm bore, 130mm stroke, output force, and G3/8 port, fitting existing fixtures perfectly while adding an upgraded piston seal.
The 63mm bore features a G3/8 air port and a 20mm 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 SAI63X130S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X130S replacement — usually within 7-8 hours.