Airtac SC50 Standard Cylinder SC50X270STC
The AirTAC Airtac SC50 Standard Cylinder SC50X270STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 270mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke270 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X270STC
The SC50X270STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa), built for mid-range automation tasks requiring a pivoting mount. Its 20 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration, while the 270 mm stroke suits medium-reach clamping and transfer applications.
This model is factory-configured with a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, and a centre trunnion mount (TC) with the TCM1 bracket (F-SC50TC) for swinging loads. The TPU seals and PT1/4 ports keep it compatible with standard filtered-air systems from -20 to +70 °C.
Airtac SC50 Standard Cylinder SC50X270STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X270STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 270 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| 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, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (approx.) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SC50 Standard Cylinder SC50X270STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×270 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SC50 Standard Cylinder SC50X270STC Is Used
Part Diverter Gates
The centre trunnion mount allows the cylinder to pivot as it extends, making it ideal for actuating diverter gates on conveyor lines where the cylinder body must swing through an arc.
Welding Fixture Clamps
With 1767 N of clamping force available at 0.9 MPa and magnetic piston sensing, this cylinder confirms clamp position in automated welding cells, ensuring parts are securely held before the cycle starts.
Pivoting Linkage Actuation
The TC trunnion mount absorbs the angular movement of a pivoting linkage, reducing rod side-loading. This 270 mm stroke model is well-suited for driving levers or oscillating mechanisms in packaging machinery.
Is the Airtac SC50 Standard Cylinder SC50X270STC the Right Cylinder?
For higher force requirements, step up to the SC63 bore which provides 1559 N push at 0.5 MPa. If space is tight and 825 N pull force at 0.5 MPa is sufficient, the SC40 bore may fit. At a 270 mm stroke, the 20 mm rod is robust, but always avoid direct side loads; use an external guide rail if the load is not purely axial.
When replacing an existing cylinder, match five points: 50 mm bore, 270 mm stroke, PT1/4 port thread, centre trunnion (TC) mounting with TCM1 bracket, and the built-in magnet (-S) for sensor compatibility. This ensures a drop-in fit for another AirTAC SC tie-rod cylinder.
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 SC50 Standard Cylinder SC50X270STC FAQ
At the standard 0.5 MPa, push force is 982 N. At 0.7 MPa it reaches 1374 N, and at the maximum operating pressure of 0.9 MPa, the theoretical push force is 1767 N. Always apply a safety factor for dynamic loads.
Yes. The -S suffix in the model code indicates a built-in magnet on the piston. This allows you to clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel's sensor groove to detect end-of-stroke positions without any additional brackets.
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