Airtac SAI50 Standard Cylinder SAI50BX550
The AirTAC SAI50 Standard Cylinder SAI50BX550 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 SAI50BX550
The AirTAC SAI50X550 is a double-acting ISO 15552 profile cylinder offering 982 N of push force at 0.5 MPa. With a 550 mm stroke, it is built for extended travel distances in automated machinery. The extruded aluminum barrel omits traditional tie-rods, presenting a smooth, standardized exterior that drops directly into ISO 15552 mounting interfaces.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance in washdown or humid settings. It uses PT tapered port threads and lacks a piston magnet, meaning it is optimized purely for pneumatic actuation rather than internal position sensing.
Airtac SAI50 Standard Cylinder SAI50BX550 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX550 |
|---|---|
| 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 SAI50BX550
| 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 SAI50BX550 Is Used
Extended Transfer Lines
Pushes products or pallets over long 550 mm distances between processing stations on automated conveyors.
Packaging Equipment
Actuates folding mechanisms or long-stroke pushers where a 982 N force class is sufficient for cardboard handling.
Material Ejection
Ejects molded parts or scrap over a wide gap, utilizing the SUS304 rod to withstand mildly corrosive industrial environments.
Is the Airtac SAI50 Standard Cylinder SAI50BX550 the Right Cylinder?
When sizing this model, stepping down to a 40 mm bore yields 628 N at 0.5 MPa, while moving up to a 63 mm bore provides 1559 N. The 50 mm bore is the sweet spot for medium-duty handling. Because the 550 mm stroke creates an extended unsupported rod, side loads can cause severe bending stress on the rod bearing. Utilize an external guide rail or a fully guided cylinder to prevent premature wear. If the machinery loses air pressure, this standard cylinder cannot hold a load and will drift; integrate an external pilot-operated check valve or the SAIL locking variant for fail-safe position holding.
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 SAI50BX550 FAQ
At 0.5 MPa, the SAI50X550 delivers 982 N of push force and 825 N of pull force. If you increase the operating pressure to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X550 is dimensionally interchangeable per ISO 15552. You can drop it into existing foot (LB), flange (FA/FB), or trunnion (TC) mounts designed for this standard.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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