Airtac SAI50 Standard Cylinder SAI50X120
The AirTAC SAI50 Standard Cylinder SAI50X120 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 SAI50X120
The AirTAC SAI50X120 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 120mm stroke. It delivers a robust 982 N of push force at 0.5 MPa, making it well-suited for medium-duty industrial handling and processing tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration utilizes a standard carbon steel piston rod and PT tapered port threads. Because it lacks an integrated magnet, external reed switches like the CMSE or DMSE series are not supported without modification. For environments requiring elevated thermal resistance, the standard TPU seals can be swapped for Viton (H) or NBR (N) options.
Airtac SAI50 Standard Cylinder SAI50X120 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X120 |
|---|---|
| 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 SAI50X120
| 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 SAI50X120 Is Used
Package Diverting
Provides the linear stroke and mid-range thrust needed to actuate diverter arms on high-speed packaging lines.
Clamp Fixturing
Secures workpieces during CNC machining or assembly operations where 982 N of force is adequate for rigid holding.
Gate Operation
Automates the opening and closing of process gates or machine guards requiring a compact 50mm bore profile.
Is the Airtac SAI50 Standard Cylinder SAI50X120 the Right Cylinder?
When selecting this actuator, verify if the 982 N push force at 0.5 MPa is sufficient, or if you should step up to the 63mm bore, which offers 1559 N at the same pressure. Conversely, if your load is lighter, the 40mm bore provides 628 N. This 120mm stroke is well within standard limits and does not require auxiliary side-load guides.
Keep in mind that a standard SAI cylinder relies on continuous air pressure to maintain its position. If your application loses air, the piston will drift; for positive holding without live pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. Being dimensionally interchangeable per ISO 15552, this unit serves as a direct replacement for other ISO 15552 profile cylinders, matching standard foot, flange, and trunnion mounting interfaces.
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 SAI50X120 FAQ
At an operating pressure of 0.5 MPa, the SAI50X120 generates 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X120 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensions interchangeable with other ISO 15552 standard cylinders. It uses a G1/4 port and standard mounting accessories.
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