Airtac SC50 Standard Cylinder SC50X127
The AirTAC Airtac SC50 Standard Cylinder SC50X127 is a genuine double-acting standard air cylinder with a Ø50mm bore and 127mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke127 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X127
The SC50X127 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, delivering a push force of 982 N at 0.5 MPa and up to 1767 N at the maximum operating pressure of 0.9 MPa. With a 50 mm bore and 127 mm stroke, it features a 20 mm diameter piston rod with M16x1.5 threads and PT1/4 ports, making it a robust mid-range actuator for general industrial automation.
This model is built on a body length of 150 mm, resulting in a compact extended length of approximately 277 mm. The adjustable pneumatic cushion at each end (21 mm cushion length) decelerates the piston smoothly, reducing end-of-stroke impact. Standard TPU seals provide reliable operation within a -20 to +70 °C temperature range using filtered compressed air.
Airtac SC50 Standard Cylinder SC50X127 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X127 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 127 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 SC50X127
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×127 | 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 SC50X127 Is Used
Material Transfer Gates
Provides the 982 N push force needed to reliably actuate diverter gates on packaging and assembly conveyors, handling product flow at standard line speeds.
Clamping & Holding Fixtures
Delivers controlled clamping force for CNC machining fixtures and welding jigs, where the 127 mm stroke offers sufficient travel for part loading and unloading.
Automated Sorting Pushers
Ideal for pusher mechanisms in sorting systems, using its 50 mm bore to move cartons or totes onto branch conveyors with consistent, repeatable force.
Is the Airtac SC50 Standard Cylinder SC50X127 the Right Cylinder?
The SC50X127 sits between the smaller SC40 (628 N push at 0.5 MPa) and the larger SC63 (1559 N push). If your application requires more force, stepping up to the 63 mm bore provides a significant 58% increase in thrust. For lighter, faster cycling loads, the SC40 may offer a more economical solution.
When replacing an existing cylinder, ensure a 5-point match: 50 mm bore, 127 mm stroke, PT1/4 port thread, the specific mounting accessory (this is a basic body, so no integral bracket), and the magnet option (this model has no built-in magnet). For strokes over 300 mm, always assess side-load conditions; an external guide rail is recommended to protect the rod bearing from bending moments.
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 SC50X127 FAQ
At the standard operating pressure of 0.5 MPa, the cylinder generates 982 N of push force and 825 N of pull force. 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.
No. The AirTAC SC series is a tie-rod cylinder that is shorter in overall length than a comparably-stroked ISO 15552 profile cylinder. It is dimensionally interchangeable only with another AirTAC SC tie-rod cylinder of the same bore, stroke, port thread, and mounting configuration.
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