Airtac SAI63 Standard Cylinder SAI63BX950S
The AirTAC SAI63 Standard Cylinder SAI63BX950S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 950mm 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
- Stroke950 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 SAI63BX950S
The AirTAC SAI63X950-S is a double-acting ISO 15552 profile cylinder engineered for a 63mm bore and a 950mm stroke. Because this stroke exceeds the standard 1500mm limit for this bore, it is produced as a made-to-order unit. It generates 1559N of push force at 0.5MPa and 2182N at 0.7MPa, making it well-suited for long-travel material handling. The extruded aluminum barrel features sensor grooves on both sides for CMSE or DMSE switches.
This specific configuration includes a magnet for position sensing and uses a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance. The PT threaded G3/8 port handles airflow efficiently, while adjustable air cushions at both ends decelerate the piston over this extended travel distance.
Airtac SAI63 Standard Cylinder SAI63BX950S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX950S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 950 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 SAI63BX950S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×950 | 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 SAI63BX950S Is Used
Extended Material Transfer
Ideal for pushing pallets or workpieces across 950mm gaps on automated assembly lines where a long reach is required.
Long-Stroke Ejection
Provides the 1559N force needed to eject finished parts from large machinery molds over an extended distance.
Large Door Actuation
Reliable linear motion for opening heavy industrial equipment doors or safety shields using CMSE sensor feedback.
Is the Airtac SAI63 Standard Cylinder SAI63BX950S the Right Cylinder?
This 63mm bore provides a balanced force output of 1559N at 0.5MPa; if your application requires less force, stepping down to a 50mm bore yields 982N, while an 80mm bore offers 2513N. Because the 950mm stroke is non-standard, expect extended lead times for manufacturing. The G3/8 port and PT thread configuration must be matched to your existing ISO 15552 mounting interface and accessories.
For a stroke of 950mm, the unsupported piston rod is highly susceptible to bending under side loads. You must use an external guide rail or a fully guided cylinder to prevent rod-bearing damage. Additionally, this standard SAI cylinder will drift and drop if air pressure is lost; if your machine requires true load holding without live pressure, integrate the SAIL (lock) or BSAI (clamp-lock) variant instead.
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 SAI63BX950S FAQ
At 0.5MPa, it provides 1559N of push force and 1402N of pull force. At 0.7MPa, the push force increases to 2182N.
Yes, it is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts using standard FA flange or TC trunnion accessories, provided your setup accommodates the 950mm stroke.
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