Airtac SC50 Standard Cylinder SC50X250
The AirTAC Airtac SC50 Standard Cylinder SC50X250 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 SC50X250
The SC50X250 is a double-acting tie-rod cylinder delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa), making it a solid mid-range actuator for general automation. Its 20 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration for a 250 mm stroke, while the PT1/4 port thread ensures straightforward pneumatic connections.
With a compact body length A of just 150 mm, this genuine AirTAC cylinder fits where space is limited yet still provides a total extended length of approximately 400 mm. The TPU seals offer a standard operating range of -20 to +70 °C, and the speed range of 30-800 mm/s suits a wide variety of cycling requirements.
Airtac SC50 Standard Cylinder SC50X250 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X250 |
|---|---|
| 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 SC50X250
| 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 SC50X250 Is Used
Material Transfer Gates
The 982 N push force at 0.5 MPa easily actuates diverter gates and stops on light-to-medium conveyor lines, handling packages or small components with the 250 mm stroke providing ample reach.
Clamping & Assembly Fixtures
Ideal for pneumatic clamping in woodworking or light metal fabrication jigs. The adjustable cushion ensures smooth, vibration-free clamping at the end of the 250 mm stroke, protecting both the workpiece and tooling.
Packaging Pushers
Used to push cartons or products into cartoners or case packers. The 30-800 mm/s speed range allows cycle time tuning, and the 20 mm rod provides sufficient rigidity for straight-line pushing tasks.
Is the Airtac SC50 Standard Cylinder SC50X250 the Right Cylinder?
For applications needing more force, stepping up to the 63 mm bore SC63 series provides 1559 N at 0.5 MPa, while the 40 mm bore offers 628 N if a smaller, lighter actuator is preferred. At a 250 mm stroke, the 20 mm rod is well-supported, but if side loads are present, consider an external guide rail or a guided cylinder to protect the rod bearing from bending moments.
When replacing an existing unit, match five key points: 50 mm bore, 250 mm stroke, PT1/4 port thread, the specific mounting accessory (this basic model has none), and the magnet option (this code has no built-in magnet). Only an identical AirTAC SC tie-rod cylinder guarantees the same dimensions and cushion performance.
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 SC50X250 FAQ
At the standard operating pressure of 0.5 MPa, the push force is 982 N and the pull force is 825 N. At 0.7 MPa, push force increases to 1374 N. The maximum theoretical force at 1.0 MPa is 200 kgf. Always size the cylinder based on the available plant air pressure.
No. The SC series is a tie-rod cylinder that is physically shorter than an ISO 15552 profile cylinder, so the mounting dimensions and body length are not interchangeable. It is a direct replacement only for another AirTAC SC50 tie-rod cylinder with matching stroke, port thread, and mounting configuration.
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