Airtac SAI50 Standard Cylinder SAI50BX125
The AirTAC SAI50 Standard Cylinder SAI50BX125 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 125mm 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
- Stroke125 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 SAI50BX125
The AirTAC SAI50X125 is a double-acting ISO 15552 profile cylinder offering 982 N of push force at 0.5 MPa. Its 125 mm stroke is well-suited for mid-length indexing and clamping tasks that require reliable linear motion. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that resists impact in busy work cells.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in wet or mildly chemical washdown environments. It utilizes PT tapered port threading and lacks a magnet; if position sensing is needed later, explore the SAI50X125-S variant equipped for CMSE or DMSE switches.
Airtac SAI50 Standard Cylinder SAI50BX125 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50BX125 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 SAI50BX125
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 SAI50BX125 Is Used
Packaging Diverters
Handles 125 mm routing strokes to push cartons between adjacent conveyor belts at moderate speeds.
Component Clamping
Provides 982 N of holding force at 0.5 MPa to secure housings for machining or assembly operations.
Pallet Lift Stops
Acts as a physical stop mechanism to position and halt incoming pallets at processing stations.
Is the Airtac SAI50 Standard Cylinder SAI50BX125 the Right Cylinder?
If 982 N at 0.5 MPa is insufficient for your load, stepping up to the 63 mm bore yields 1559 N of push force. Conversely, lighter duty cycles can drop to the 40 mm bore providing 628 N. Because this is a double-acting cylinder, it requires live air pressure to both extend and retract; it will not hold a load if air is lost. For suspended or gravity-loaded applications that must resist drifting during pressure drops, consider the SAIL locking variant or an external pilot check valve. This model directly matches the ISO 15552 mounting interface (50 mm bore, 125 mm stroke, PT G1/4 port) and is compatible with FA/FB flanges or TC trunnion accessories.
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 SAI50BX125 FAQ
At 0.5 MPa it provides 982 N of push force and 825 N of pull force. If you increase pressure to 0.7 MPa, the push force rises to 1374 N.
Yes, the SAI50X125 is dimensionally interchangeable per ISO 15552, meaning it matches standard mounting footprints for other ISO 15552 profile cylinders.
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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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