Airtac SC50 Standard Cylinder SC50X250FA
The AirTAC Airtac SC50 Standard Cylinder SC50X250FA is a genuine double-acting standard air cylinder with a Ø50mm bore and 250mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke250 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X250FA
The SC50X250FA is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at the maximum operating pressure of 0.9 MPa). Its 250 mm stroke is well within the 1200 mm standard maximum for the 50 mm bore, making this a readily available configuration for medium-reach linear tasks.
This model features a 20 mm diameter piston rod with an M16x1.5 male thread and an FA front rectangular flange (F-SC50FA) for secure panel or bulkhead mounting. The cylinder body length is 150 mm, giving a total extended length of approximately 400 mm. Ports are PT1/4, and the adjustable air cushion decelerates the piston over the final 21 mm of stroke to reduce end-cap impact.
Airtac SC50 Standard Cylinder SC50X250FA Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X250FA |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 250 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 SC50X250FA
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×250 | 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 SC50X250FA Is Used
Clamping & Fixturing
The 982 N push force at 0.5 MPa makes this cylinder ideal for pneumatic clamping fixtures in CNC machining, welding jigs, and assembly stations where a firm, repeatable hold is needed.
Part Stops & Diverter Gates
With a 250 mm stroke and front flange mounting, the SC50X250FA reliably actuates part stops or diverter gates on conveyor lines, sorting packages or directing product flow with consistent speed.
Small Press & Forming
Delivering up to 1767 N at 0.9 MPa, this cylinder suits light-duty press-fit insertion, riveting, or embossing operations where a compact, tie-rod actuator provides the necessary linear thrust.
Is the Airtac SC50 Standard Cylinder SC50X250FA the Right Cylinder?
Select the SC50 bore when your application requires between 825 N (pull) and 982 N (push) at standard 0.5 MPa shop air. If you need more force, the SC63 bore provides 1559 N push at the same pressure; for a lighter, more compact solution, the SC40 delivers 628 N. This 250 mm stroke model uses a front flange mount (FA) for rigid attachment to a machine panel.
For a direct replacement, match five key points: 50 mm bore, 250 mm stroke, PT1/4 port thread, FA front flange mounting, and the absence of a magnet. At this stroke length, ensure the rod is aligned axially with the load; any significant side force requires an external linear guide to protect the rod bearing from bending and premature seal wear.
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 SC50X250FA FAQ
At the standard operating pressure of 0.5 MPa, the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N. The theoretical maximum force at 1.0 MPa is 200 kgf.
Yes, if the original is an AirTAC SC50 tie-rod cylinder with a 250 mm stroke, PT1/4 ports, and an FA front flange mount. This is not an ISO 15552 cylinder, so it will not directly interchange with profile cylinders. Verify the mounting bolt pattern for the F-SC50FA flange matches your machine.
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