This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X14, 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 SI63X14
The AirTAC Airtac SI63 Standard Cylinder SI63X14 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 14mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X14, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke14 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X14
- 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 SI63X14
The AirTAC SI63X14 is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 14 mm stroke. It delivers 1559 N push force at 0.5 MPa via a G3/8 port. AirTAC replaced this legacy unit with the SAI63X14, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, force and port.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU lacks a magnet (-S) and cannot accept a sensor. The SAI family also adds SAIL, SAIF and BSAI lock variants the SI line lacked.
Airtac SI63 Standard Cylinder SI63X14 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X14 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X14 |
| Bore size | Ø63 mm |
| Stroke | 14 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 SAI63X14 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 SAI63X14 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 SI63X14
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×14 | 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 SI63X14 Is Used
Short-Stroke Clamping
Ideal for holding parts during machining, using its 1559 N push force at 0.5 MPa to secure workpieces firmly within a tight 14 mm travel.
Ejector Mechanism
Provides a fast 30-800 mm/s ejection punch on assembly lines, quickly clearing finished components from fixtures without taking up excessive space.
Replacing the Airtac SI63 Standard Cylinder SI63X14 with the SAI63X14
To replace the SI63X14, order the SAI63X14 direct equivalent, verifying the ISO 15552 mounting interface, 63 mm bore, 14 mm stroke, G3/8 port (PT/G/NPT thread options) and your mounting accessory. Because this non-magnet SKU cannot take a switch, order a magnet-equipped SAI if you need CS1-B/DS1-B sensing. For sizing, a 50 mm bore yields 982 N push @0.5 MPa, while an 80 mm bore yields 2513 N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For held loads, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X14
- ✓ 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 SI63X14 FAQ
Yes, the AirTAC SI63X14 is discontinued. The direct replacement is the SAI63X14. It shares the same ISO 15552 mounting interface, 63 mm bore, 14 mm stroke, output force and G3/8 port, fitting existing fixtures perfectly.
The 63 mm bore 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.
Request a Quote for the SAI63X14
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X14 replacement — usually within 7-8 hours.