Airtac SC50 Standard Cylinder SC50X140
The AirTAC Airtac SC50 Standard Cylinder SC50X140 is a genuine double-acting standard air cylinder with a Ø50mm bore and 140mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke140 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X140
The SC50X140 is a double-acting tie-rod cylinder delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa). Its 140 mm stroke suits medium-travel clamping, pressing, and material-handling tasks where a compact body length is needed.
This model uses a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 ports. The adjustable pneumatic cushion (21 mm length) decelerates the piston smoothly at end-of-stroke, reducing impact noise and wear without external shock absorbers.
Airtac SC50 Standard Cylinder SC50X140 Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X140 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 140 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 SC50X140
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×140 | 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 SC50X140 Is Used
Part Transfer
Moves components between conveyor lanes or workstations with a 140 mm linear stroke. The 982 N push force at 0.5 MPa handles medium-weight pallets and fixtures reliably.
Assembly Press
Applies controlled insertion force for bearing or bushing press-fit operations. Adjustable cushioning protects delicate parts from impact damage at the end of the stroke.
Clamping Fixture
Locks workpieces in place on CNC machining centres or welding jigs. Double-acting control ensures positive clamp and release with 825 N pull force on retraction.
Is the Airtac SC50 Standard Cylinder SC50X140 the Right Cylinder?
For applications needing more force, the 63 mm bore SC63 series steps up to 1559 N at 0.5 MPa. If space is tight and 825 N pull force is sufficient, the 40 mm bore SC40 series offers a smaller footprint. Always match replacement cylinders on five points: 50 mm bore, 140 mm stroke, PT1/4 port thread, basic mounting (no bracket), and the absence of a built-in magnet.
At 140 mm stroke, the standard 20 mm rod provides good column strength for axial loads. For applications with significant side loading, consider adding an external linear guide or switching to a guided cylinder to protect the rod bearing from bending stress.
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 SC50X140 FAQ
At the standard 0.5 MPa operating pressure, the SC50X140 produces 982 N pushing force and 825 N pulling force. At 0.7 MPa, push force increases to 1374 N. The maximum theoretical force at 1.0 MPa is 200 kgf (1961 N push).
No. The SC series is a tie-rod cylinder with a shorter overall body length than an ISO 15552 profile cylinder. It is not dimensionally interchangeable with ISO 15552 mounts. Replace only with another AirTAC SC50 tie-rod cylinder matching the same stroke, port thread, and mounting accessories.
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