This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX1330S, 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 SI63BX1330S
The AirTAC Airtac SI63 Standard Cylinder SI63BX1330S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 1330mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX1330S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke1330 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX1330S
- 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 SI63BX1330S
The AirTAC SI63BX1330S is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 1330mm stroke. It delivers 1559N push force at 0.5MPa via a G3/8 port. The direct replacement is the SAI63BX1330S, retaining the same SUS304 stainless rod, stroke, force, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note the 1330mm stroke requires external guides to prevent rod bending; load holding needs a pilot check valve or SAIL lock variant, as cushions only decelerate.
Airtac SI63 Standard Cylinder SI63BX1330S Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX1330S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX1330S |
| Bore size | Ø63 mm |
| Stroke | 1330 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 SAI63BX1330S 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 SAI63BX1330S 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 SI63BX1330S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×1330 | 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 SI63BX1330S Is Used
Long-Stroke Diversion
Drives large package pushers across wide conveyor belts, utilizing the 1330mm reach and 1559N force at 0.5MPa to redirect heavy goods.
High-Reach Palletizing
Lifts or positions packaging layers on tall pallet stacks, where the SUS304 rod provides corrosion resistance and the 79kg vertical lift capacity handles substantial loads.
Automated Material Transfer
Shifts workpiece pallets between machining stations over a long 1330mm span, requiring external guide rails to support the extended rod.
Replacing the Airtac SI63 Standard Cylinder SI63BX1330S with the SAI63BX1330S
To replace the SI63BX1330S, order the SAI63BX1330S. Verify the ISO 15552 mounting interface, 1330mm stroke, G3/8 port, and -S magnet for CS1-B/DS1-B sensors. The -B rod is SUS304 stainless. Because 1330mm exceeds 300mm, add external guides to prevent rod-bending side loads. For sizing, a 50mm bore gives 982N push @0.5MPa, while an 80mm bore gives 2513N. A plain cylinder drifts on air loss; for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX1330S
- ✓ 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 SI63BX1330S FAQ
Yes, the SI63BX1330S is discontinued. The direct replacement is the SAI63BX1330S. It is dimensionally interchangeable per ISO 15552, keeping the same 63mm bore, 1330mm stroke, G3/8 port, and SUS304 rod.
This double-acting cylinder uses a G3/8 port. It generates 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N push at 0.9MPa, and a theoretical max of 318kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63BX1330S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX1330S replacement — usually within 7-8 hours.