Airtac SC50 Standard Cylinder SC50X300SFA
The AirTAC Airtac SC50 Standard Cylinder SC50X300SFA is a genuine double-acting standard air cylinder with a Ø50mm bore and 300mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke300 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X300SFA
The AirTAC SC50X300SFA is a double-acting single-rod pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa). Its 300 mm stroke and 20 mm diameter rod make it a practical actuator for medium-reach linear tasks where a front flange mounting face is preferred.
This model includes a built-in magnet (-S suffix), allowing CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The FA front rectangular flange (F-SC50FA) bolts rigidly to the rod-end face, simplifying installation onto machine panels. With an adjustable air cushion of 21 mm and a body length A of 150 mm, it decelerates loads smoothly within a speed range of 30-800 mm/s.
Airtac SC50 Standard Cylinder SC50X300SFA Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X300SFA |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 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 SC50X300SFA
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×300 | 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 SC50X300SFA Is Used
Clamping & Fixturing
The front flange mount and 982 N push force make this cylinder ideal for pneumatic clamping units on CNC fixtures, where sensor feedback confirms the clamp is closed before machining starts.
Part Stops & Diverters
With a 300 mm stroke and magnetic piston sensing, it reliably extends a stop gate or diverter arm on a packaging conveyor, verifying position at both ends of travel.
Press-Fit Assembly
Delivers a controlled 1767 N at 0.9 MPa for light press-fit or staking operations. The adjustable cushion absorbs impact at full extension, protecting the tooling.
Is the Airtac SC50 Standard Cylinder SC50X300SFA the Right Cylinder?
Choose the SC50 bore when your application needs around 980 N at standard shop air; if you require more force, stepping up to the SC63 bore provides 1559 N at the same 0.5 MPa. For lighter, more compact designs, the SC40 bore delivers 628 N.
At a 300 mm stroke, ensure the rod is not subjected to significant side loads—long unsupported strokes can create bending moments on the 20 mm rod. If side forces are unavoidable, use an external linear guide or a guided cylinder to protect the rod bearing and seals. For direct replacement, match bore (50 mm), stroke (300 mm), PT port thread, FA front flange mount, and the -S magnet option.
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 SC50X300SFA FAQ
At 0.7 MPa operating pressure, the push force is 1374 N. The theoretical maximum at 1.0 MPa is 200 kgf. Always size the cylinder based on the force available at your specific working pressure.
Yes, if your old cylinder was a 50mm bore, 300mm stroke SC with a front flange and magnet. This model adds the FA flange (F-SC50FA) and -S magnet. Ensure your port thread is PT and the mounting hole pattern matches the F-SC50FA flange dimensions.
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