This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI63BX110, 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 SI63BX110
The AirTAC Airtac SI63 Standard Cylinder SI63BX110 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø63mm bore and 110mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI63BX110, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ63 mm
- Stroke110 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- StatusDiscontinued → SAI63BX110
- 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 SI63BX110
The AirTAC SI63BX110 is a discontinued double-acting ISO 15552 profile cylinder with a 63mm bore and 110mm stroke. It delivers 1559N push and 1402N pull at 0.5MPa through a G3/8 port. The direct replacement is the SAI63BX110, which matches the original bore, stroke, force, port and mounting fixtures exactly.
This SKU features a SUS304 stainless steel rod for corrosion resistance, but lacks a magnet so it cannot accept position switches. Upgrading to the SAI brings an advanced two-piece Y-shaped piston seal for lower start-up pressure. For high heat, Viton H seals raise the limit to 150C.
Airtac SI63 Standard Cylinder SI63BX110 Technical Specifications
| Model | Airtac SI63 Standard Cylinder SI63BX110 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI63BX110 |
| Bore size | Ø63 mm |
| Stroke | 110 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 SAI63BX110 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 SAI63BX110 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 SI63BX110
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 63 | Bore size in mm. |
| ×110 | 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 SI63BX110 Is Used
Stainless Rod Clamping
Ideal for packaging lines where the SUS304 rod resists washdown chemicals while providing 1559N of clamping thrust.
Product Diversion
Delivers reliable 110mm stroke actuation to push items between conveyor lanes at speeds up to 800mm/s.
Replacing the Airtac SI63 Standard Cylinder SI63BX110 with the SAI63BX110
To replace the SI63BX110, order the SAI63BX110. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the 63mm bore, 110mm stroke, G3/8 port, M16x1.5 rod thread and 30mm cushions. Because this specific SKU has no magnet (-S), it cannot support legacy CS1-B/DS1-B sensors; order an SAI with the S suffix if sensing is needed. For sizing alternatives, a 50mm bore yields 982N push at 0.5MPa, while an 80mm bore provides 2513N. Note that a plain cylinder drifts without live air; for load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI63BX110
- ✓ 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 SI63BX110 FAQ
Yes, the SI63BX110 is discontinued. The direct replacement is the SAI63BX110. It shares the exact ISO 15552 mounting interface, 63mm bore, 110mm stroke, G3/8 port and output force, fitting existing fixtures perfectly.
This double-acting cylinder has a 63mm bore, 110mm stroke, G3/8 port, M16x1.5 rod thread, 30mm cushions and operates at 30-800mm/s. Force output is 1559N push and 1402N pull at 0.5MPa, 2182N push at 0.7MPa, 2805N at 0.9MPa, and a 318kgf maximum at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI63BX110
Send us the quantity and destination. We confirm price, stock and lead time on the SAI63BX110 replacement — usually within 7-8 hours.