Airtac SAI50 Standard Cylinder SAI50AX900S
The AirTAC SAI50 Standard Cylinder SAI50AX900S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 900mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ50 mm
- Stroke900 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 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 SAI50 Standard Cylinder SAI50AX900S
The AirTAC SAI50X900-S is a double-acting ISO 15552 profile cylinder engineered for long-travel automation. It generates 982 N of push thrust and 825 N of pull thrust at 0.5 MPa. Because the requested 900 mm travel exceeds the standard 1200 mm limit for this bore family in standard increments, it is produced as a made-to-order non-standard stroke unit.
This variant includes a piston magnet for proximity sensing via CMSE or DMSE switches mounted in the dual-side sensor grooves. It also features an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance in humid or mildly chemically exposed environments.
Airtac SAI50 Standard Cylinder SAI50AX900S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX900S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| 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 stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI50 Standard Cylinder SAI50AX900S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×900 | 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 SAI50 Standard Cylinder SAI50AX900S Is Used
Long-Stroke Material Push
Provides the 982 N push force needed to transfer heavy pallets or workpieces across a 900 mm gap on automated conveyor lines.
High-Bay Ejection
The 900 mm stroke is optimal for pushing storage bins or totes from elevated shelving systems where extended reach is required.
Extended Transfer Arms
Drives long-lever transfer arms in packaging machinery, utilizing the dual sensor grooves and CMSE switches for end-of-stroke verification.
Is the Airtac SAI50 Standard Cylinder SAI50AX900S the Right Cylinder?
Selecting this 50 mm bore provides a middle ground between the 40 mm bore (628 N at 0.5 MPa) and the 63 mm bore (1559 N at 0.5 MPa), making it ideal when 982 N of extension force is required. At 900 mm of travel, the unsupported rod length is substantial; side loads will cause bending and premature rod-bearing wear. You must guide the load externally or utilize a dedicated guided cylinder to prevent mechanical failure.
This model uses a PT tapered port thread and includes the -S magnet option. It provides a direct replacement for any ISO 15552 dimensionally interchangeable cylinder. Note that a standard SAI does not hold a load safely upon air pressure loss; if your application requires vertical position holding, specify the SAIL pneumatic lock or BSAI clamp-lock variant.
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 SAI50 Standard Cylinder SAI50AX900S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. It can reach 1374 N push at 0.7 MPa.
Yes, the SAI50X900-S is dimensionally interchangeable per ISO 15552 standards. You can drop it in to replace other ISO 15552 profile cylinders with a 50 mm bore and 900 mm stroke.
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