Airtac SAI63 Standard Cylinder SAI63BX250
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX250 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 250mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke250 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- 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 SAI63 Standard Cylinder SAI63BX250
The AirTAC SAI63X250 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. With a 250 mm stroke, it provides the extended travel needed for mid-distance indexing and robust part manipulation in automated lines.
This unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. Because it lacks a built-in magnet, it relies on external limit switches or mechanical stops for position detection.
Airtac SAI63 Standard Cylinder SAI63BX250 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX250 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / 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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI63 Standard Cylinder SAI63BX250
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI63 Standard Cylinder SAI63BX250 Is Used
Mid-Stroke Clamping
Secures heavy steel workpieces during machining operations using its 1559 N push force at 0.5 MPa.
Pallet Diverting
Extends 250 mm to push pallets off a main conveyor line into secondary packaging stations.
Material Lifting
Raises bulk material chutes or gates in light industrial environments where PT ports are standard.
Is the Airtac SAI63 Standard Cylinder SAI63BX250 the Right Cylinder?
Selecting this 63 mm bore is ideal when a 50 mm bore falls short, offering a significant jump from 982 N to 1559 N at 0.5 MPa. If your application requires less force, stepping down to the 50 mm bore saves space and air consumption.
Because the 250 mm stroke exceeds 300 mm, supporting side loads is critical; an external guide rail prevents rod-bearing bending and premature seal wear. For drop prevention during pressure loss, integrate the SAIL locking variant or an external pilot check valve. This model serves as a direct replacement for any ISO 15552 cylinder with a 63 mm bore, 250 mm stroke, G3/8 port, and standard mounting accessories like FA or TC.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI63 Standard Cylinder SAI63BX250 FAQ
At 0.5 MPa, this 63 mm bore cylinder provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X250 is dimensionally interchangeable per ISO 15552. You can drop it in to replace other ISO 15552 profile cylinders with a 63 mm bore, 250 mm stroke, and G3/8 port.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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