Airtac SAI50 Standard Cylinder SAI50AX550S
The AirTAC SAI50 Standard Cylinder SAI50AX550S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 550mm 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
- Stroke550 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 SAI50AX550S
The AirTAC SAI50X550-S is a double-acting ISO 15552 profile cylinder engineered for demanding pneumatic tasks. It provides a push force of 982 N at 0.5 MPa alongside a 550 mm stroke, making it well-suited for mid-range material handling. The extruded aluminum barrel omits tie rods to provide a clean, standardized exterior.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid environments. A pre-installed magnet enables position feedback with CMSE or DMSE reed switches fitted into the dual sensor grooves. It features a PT tapered port thread and adjustable air cushions at both ends to manage impact deceleration.
Airtac SAI50 Standard Cylinder SAI50AX550S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50AX550S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 550 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 SAI50AX550S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×550 | 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 SAI50AX550S Is Used
Package Diverting
Drives diverter arms on packaging lines to route boxes between conveyor belts over a 550 mm reach.
Vertical Lifting
Raises and lowers light pallets or tote bins, utilizing the 982 N push force at 0.5 MPa to elevate loads.
Part Ejection
Ejects molded or stamped components from machinery, using the full stroke to clear the work area safely.
Is the Airtac SAI50 Standard Cylinder SAI50AX550S the Right Cylinder?
When optimizing your setup, stepping down to a 40 mm bore drops the 0.5 MPa push force to 628 N, whereas moving up to a 63 mm bore increases it to 1559 N. Choose the 50 mm bore when your application requires roughly 1000 N of thrust without the air volume consumption of larger units.
Because the 550 mm stroke is substantial, the unsupported piston rod is vulnerable to bending under side loads. To prevent premature rod-bearing wear, implement an external linear guide or use a guided cylinder to handle any lateral forces. Note that the standard SAI does not hold its position upon air loss; if your workflow requires fail-safe load holding without live pressure, select the SAIL (air-released lock) or BSAI (clamp-lock) variant instead of relying on the cushions. This model is dimensionally interchangeable per ISO 15552.
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 SAI50AX550S FAQ
This 50 mm bore cylinder generates a push force of 982 N and a pull force of 825 N at 0.5 MPa. At 0.7 MPa, the push force increases to 1374 N.
Yes. The SAI50X550-S is a true ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 standard cylinders. You can drop it into existing foot, flange, or trunnion mounts seamlessly.
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