Airtac SAI50 Standard Cylinder SAI50X120S
The AirTAC SAI50 Standard Cylinder SAI50X120S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 120mm 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
- Stroke120 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 SAI50X120S
The AirTAC SAI50X120-S is a double-acting ISO 15552 profile cylinder with a 50 mm bore and 120 mm stroke. It delivers 982 N of push force and 825 N of pull force at 0.5 MPa, making it well-suited for mid-range automation tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior while maintaining strict dimensional interchangeability with other ISO 15552 actuators.
This specific configuration includes a standard piston magnet (-S) for use with CMSE and DMSE reed switches. The dual sensor grooves machined into both sides of the barrel allow for flexible switch mounting. Additionally, the standard carbon steel piston rod is paired with a PT tapered port thread, ensuring robust performance in general industrial environments.
Airtac SAI50 Standard Cylinder SAI50X120S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X120S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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 SAI50X120S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 SAI50X120S Is Used
Automated Clamping
Ideal for securing medium-weight workpieces during machining, utilizing its 982 N push force to hold components firmly against locators.
Package Diversion
Provides reliable actuation for sorting gates on conveyor lines, where the 120 mm stroke offers quick and precise material routing.
Lift and Transfer
Well-suited for vertical lifting of intermediate pallets or trays in automated assembly cells, taking advantage of the integrated magnet for end-of-stroke confirmation.
Is the Airtac SAI50 Standard Cylinder SAI50X120S the Right Cylinder?
Select this 50 mm bore when your application requires around 982 N of push force at 0.5 MPa, offering a noticeable step up from the 40 mm bore (628 N) without the bulk of a 63 mm model (1559 N). The 120 mm stroke provides ample travel for standard clamping and lifting tasks. Because this is a double-acting cylinder, it requires continuous air pressure to hold its position; if pneumatic power is lost, the piston will drift. For applications requiring dead-stop holding without live pressure, consider the SAIL (pneumatic lock) or BSAI (clamp-lock) variants. When replacing an existing ISO 15552 actuator, simply match the 50 mm bore, 120 mm stroke, G1/4 port, and mounting accessories like FA flanges or TC trunnions.
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 SAI50X120S FAQ
At an operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force reaches 1374 N.
Yes, the SAI50X120-S is a true ISO 15552 profile cylinder. It shares standardized mounting dimensions, G1/4 ports, and a 20 mm rod thread, making it a direct replacement for other ISO 15552 compliant actuators on your equipment.
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