Airtac SAI50 Standard Cylinder SAI50BX155S
The AirTAC SAI50 Standard Cylinder SAI50BX155S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 155mm 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
- Stroke155 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 SAI50BX155S
The AirTAC SAI50X155-S is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 155mm stroke. It generates 982N of push force at 0.5 MPa, making it well-suited for mid-range industrial actuation. The extruded aluminum barrel design omits tie rods, providing a clean exterior while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
Configured specifically for harsh or washdown environments, this unit includes a SUS304 stainless steel piston rod (material code B) and PT tapered port threads. The integrated -S magnet allows direct mounting of CMSE or DMSE sensor switches into the dual-sided barrel grooves for precise end-of-stroke detection.
Airtac SAI50 Standard Cylinder SAI50BX155S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX155S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 155 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 SAI50BX155S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×155 | 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 SAI50BX155S Is Used
Stainless Rod Actuation
Ideal for food processing or packaging lines where the SUS304 rod resists moisture and corrosion while delivering 982N of thrust.
Mid-Range Product Diverting
Provides reliable 155mm stroke movement for diverting packages or materials on automated conveyor systems.
Clamp and Press Operations
Supplies consistent clamping force for light-duty assembly presses, utilizing its dual adjustable air cushions for smooth stops.
Is the Airtac SAI50 Standard Cylinder SAI50BX155S the Right Cylinder?
Select this 50mm bore model when an application requires approximately 982N of force at 0.5 MPa, stepping up from the 40mm bore which provides 628N. Because the 155mm stroke is relatively short, side-load stress on the rod bearing is minimal compared to longer travel distances. For tasks needing positional holding without continuous air pressure, the standard SAI cylinder will drift; in those cases, specify the SAIL variant with an air-released lock or utilize an external pilot check valve. This configuration uses PT ports, a 50mm bore, 155mm stroke, and an -S magnet for switches.
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 SAI50BX155S FAQ
At a 0.5 MPa operating pressure, this 50mm bore cylinder produces a push force of 982N and a pull force of 825N. At 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X155-S is dimensionally interchangeable per ISO 15552 standards. You can use it as a direct replacement for other ISO 15552 profile cylinders with matching 50mm bore and 155mm stroke dimensions.
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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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