This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X60, 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 SI63X60
The AirTAC Airtac SI63 Standard Cylinder SI63X60 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X60, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke60 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X60
- 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 SI63X60
The AirTAC SI63X60 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 60mm stroke, delivering a push force of 1559 N at 0.5 MPa. It features an extruded aluminum barrel, a 20mm piston rod, and a G3/8 air port. AirTAC replaced this legacy unit with the SAI63X60, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI replacement introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For applications needing load holding on air loss, the new SAI family adds SAIL and BSAI lock variants the SI lacked.
Airtac SI63 Standard Cylinder SI63X60 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X60 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X60 |
| Bore size | Ø63 mm |
| Stroke | 60 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 SAI63X60 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 SAI63X60 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 SI63X60
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×60 | 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 SI63X60 Is Used
Clamp Actuation
Drives mid-sized machining clamps requiring a robust 1559 N push force at 0.5 MPa to secure heavy workpieces.
Package Diverting
Powers diverting arms on production lines, utilizing the 60mm stroke for rapid sorting of goods.
Replacing the Airtac SI63 Standard Cylinder SI63X60 with the SAI63X60
To replace the SI63X60, order the SAI63X60 and verify your ISO 15552 mounting fixtures, G3/8 port, and M16x1.5 rod thread. Because this specific SKU lacks the -S magnet suffix, it cannot accept a position sensor. If sensing is required, select an SAI63X60S and use current AirTAC switches instead of the legacy CS1-B/DS1-B. For sizing, the neighboring 50mm bore yields 982 N push at 0.5 MPa, while the 80mm bore provides 2513 N. Note that a plain cylinder drifts on air loss; the cushion only decelerates the stroke. For load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X60
- ✓ 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 SI63X60 FAQ
Yes, the SI63X60 is discontinued. The direct replacement is the SAI63X60, which shares the identical ISO 15552 mounting interface, 63mm bore, 60mm stroke, force, and G3/8 port.
It features a G3/8 air port. The force ratings are: 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.
Request a Quote for the SAI63X60
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X60 replacement — usually within 7-8 hours.