This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63X1400, 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 SI63X1400
The AirTAC Airtac SI63 Standard Cylinder SI63X1400 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1400mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63X1400, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke1400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63X1400
- 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 SI63X1400
The AirTAC SI63X1400 is a discontinued double-acting ISO 15552 profile cylinder delivering 1559 N push force at 0.5 MPa through a 63 mm bore and 1400 mm stroke. The direct replacement is the SAI63X1400, matching the G3/8 port, M16x1.5 rod thread, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note that this specific SKU lacks a magnet, so it cannot accept CS1-B/DS1-B sensors. For load holding on air loss, explore the SAIL or BSAI lock variants instead of relying on the cushions.
Airtac SI63 Standard Cylinder SI63X1400 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63X1400 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63X1400 |
| Bore size | Ø63 mm |
| Stroke | 1400 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 SAI63X1400 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 SAI63X1400 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 SI63X1400
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×1400 | 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 SI63X1400 Is Used
Long-Reach Diversion
Pushes heavy pallets across a 1400 mm gap on packaging lines where the 1559 N force handles lateral resistance.
Vertical Material Lift
Raises goods up to 79 kg in automated storage racks, requiring external guides to manage the long rod extension.
Automated Press Feed
Drives long-stroke feed mechanisms in assembly presses, relying on adjustable 30 mm cushions to stop smoothly.
Replacing the Airtac SI63 Standard Cylinder SI63X1400 with the SAI63X1400
To replace the SI63X1400, order the SAI63X1400 and verify your ISO 15552 mounting accessory (LB, FA, TC, etc.), G3/8 port, and 1400 mm stroke. Because this SKU has no -S magnet, it cannot support position sensing; if switches are needed, specify an SAI63X1400S. For sizing, the 63 mm bore offers 1559 N push at 0.5 MPa; dropping to a 50 mm bore gives 982 N, while an 80 mm bore yields 2513 N. A 1400 mm stroke creates high rod-bending risk under side loads—always use an external guide to prevent premature seal wear. Finally, standard cushions only decelerate the piston; they do not hold load on air loss, so use an external rod lock or pilot check valve for safety.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63X1400
- ✓ 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 SI63X1400 FAQ
Yes, the SI63X1400 is discontinued. The direct replacement is the AirTAC SAI63X1400. It features the same ISO 15552 mounting interface, 63 mm bore, 1400 mm stroke, output force, and G3/8 port, dropping directly into existing fixtures.
The 63 mm bore uses a G3/8 port. Force output is 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 maximum theoretical force of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63X1400
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63X1400 replacement — usually within 7-8 hours.