Airtac SAI50 Standard Cylinder SAI50BX250
The AirTAC SAI50 Standard Cylinder SAI50BX250 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 250mm 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
- Stroke250 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 SAI50BX250
The AirTAC SAI50X250 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 250mm stroke. It generates 982N of push force and 825N of pull force at 0.5 MPa, making it well-suited for mid-range automation tasks requiring a substantial extension distance.
Built with a SUS304 stainless steel rod, this model provides excellent corrosion resistance for humid or washdown environments. The extruded aluminum barrel includes sensor grooves on both sides, allowing direct mounting of CMSE or DMSE switches if a magnet is added later.
Airtac SAI50 Standard Cylinder SAI50BX250 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX250 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 SAI50BX250
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | 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 SAI50 Standard Cylinder SAI50BX250 Is Used
Package Diverting
Actuates diverter arms on packaging lines, using the 250mm stroke to push cartons cleanly between adjacent conveyor belts.
Component Staging
Moves workpieces from an infeed chute to a machining center, leveraging the 982N push force to handle heavy metal blanks.
Pallet Stop Gate
Raises and lowers a stop gate in low-profile pallet handling stations, benefiting from the SUS304 rod in dusty environments.
Is the Airtac SAI50 Standard Cylinder SAI50BX250 the Right Cylinder?
Choose this 50mm bore when you need more thrust than the 40mm option (628N at 0.5 MPa) but want a lighter footprint than the 63mm class (1559N). The 250mm stroke is a standard length, but at this extension the unsupported rod is susceptible to bending under side loads. To prevent premature seal wear and rod-bearing failure, guide the load externally or use a guided cylinder assembly.
This model uses a PT tapered G1/4 port and accepts standard ISO 15552 mounting accessories like FA flanges or TC trunnions. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold a load. If your application requires position holding without air pressure, consider the SAIL locking 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 SAI50 Standard Cylinder SAI50BX250 FAQ
At an operating pressure of 0.5 MPa, the SAI50X250 provides a push force of 982N and a pull force of 825N. At 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X250 is a true ISO 15552 profile cylinder. It is dimensionally interchangeable with other ISO 15552 cylinders, allowing it to serve as a direct replacement using standard mounting accessories.
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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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Most inquiries answered within 7-8 hours.
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