This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX1300S, 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 SI63BX1300S
The AirTAC Airtac SI63 Standard Cylinder SI63BX1300S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX1300S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke1300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX1300S
- 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 SI63BX1300S
The AirTAC SI63BX1300S is a discontinued double-acting ISO 15552 profile cylinder with a 63 mm bore and 1300 mm stroke. It delivers 1559 N push at 0.5 MPa through a G3/8 port. The direct replacement is the SAI63BX1300S, matching the bore, stroke, force, port, and ISO 15552 mounting interface for existing fixtures.
This SAI upgrade features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. The -B rod is SUS304 stainless steel, and the -S magnet works with legacy CS1-B/DS1-B sensors. For load holding, note the air cushion only decelerates; use SAIL or BSAI lock variants.
Airtac SI63 Standard Cylinder SI63BX1300S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX1300S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX1300S |
| Bore size | Ø63 mm |
| Stroke | 1300 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 SAI63BX1300S 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 SAI63BX1300S 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 SI63BX1300S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×1300 | 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 SI63BX1300S Is Used
Long-Stroke Material Transfer
Pushes workpieces between machining stations over 1300 mm, relying on the 1559 N thrust class to move heavy jigs smoothly.
High-Reach Pallet Push-Off
Actuates large format diverters or pushers in packaging lines where the 63 mm bore and long travel distance are required.
Replacing the Airtac SI63 Standard Cylinder SI63BX1300S with the SAI63BX1300S
To replace the SI63BX1300S, order the SAI63BX1300S. Confirm the ISO 15552 mounting interface, 63 mm bore, 1300 mm stroke, G3/8 port (PT/G/NPT), and mounting accessory. The -S magnet enables CS1-B/DS1-B sensors, while the -B rod is SUS304 stainless. Sizing both ways: a 50 mm bore yields 982 N push at 0.5 MPa, while an 80 mm bore yields 2513 N. At 1300 mm stroke, use external guides to prevent rod-bending and side-load damage. A plain cylinder drifts on air loss; for held loads, use the SAIL or BSAI lock variant, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX1300S
- ✓ 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 SI63BX1300S FAQ
Yes, the SI63BX1300S is discontinued. The direct replacement is the SAI63BX1300S. It is dimensionally interchangeable per ISO 15552, keeping the same 63 mm bore, 1300 mm stroke, force, G3/8 port, and mounting interface.
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 theoretical max of 318 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63BX1300S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX1300S replacement — usually within 7-8 hours.