Airtac SC50 Standard Cylinder SC50X125CA
The AirTAC Airtac SC50 Standard Cylinder SC50X125CA is a genuine double-acting standard air cylinder with a Ø50mm bore and 125mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke125 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X125CA
The SC50X125CA is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 50 mm bore with a 125 mm stroke. At 0.5 MPa it generates 982 N pushing force (825 N pulling), rising to 1767 N at the maximum operating pressure of 0.9 MPa. The 20 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration for mid-range automation tasks.
This model is factory-configured with a CA rear single clevis mount (part code F-SC50CA), allowing the cylinder body to pivot during operation. The standard PT1/4 port thread and TPU seals suit filtered-air systems operating between -20 and +70 °C. With a body length A of 150 mm, the total extended length is approximately 275 mm.
Airtac SC50 Standard Cylinder SC50X125CA Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X125CA |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 SC50X125CA
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 SC50X125CA Is Used
Agricultural Gate Actuation
The rear clevis mount lets the SC50X125CA pivot as it opens and closes chutes or hopper gates on seed drills and feed dispensers, handling dusty conditions with standard TPU seals.
Clamping & Fixturing
Delivers a controlled 1767 N clamping force at 0.9 MPa for CNC jigs and welding fixtures. The 125 mm stroke provides ample clearance for part loading and unloading.
Diverter Gate Control
Pivots on its CA clevis to actuate a diverter flap on a packaging conveyor line, sorting cartons by weight or barcode with a reliable 982 N push at standard 0.5 MPa line pressure.
Is the Airtac SC50 Standard Cylinder SC50X125CA the Right Cylinder?
Choose the SC50 when your application needs roughly 1000 N of force at standard shop air. If you require more force, stepping up to the SC63 delivers 1559 N push at the same 0.5 MPa. For lighter, faster cycles, the SC40 provides 628 N. Always match the replacement cylinder on five points: 50 mm bore, 125 mm stroke, PT port thread, CA rear clevis mounting, and the absence of a magnet.
For this 125 mm stroke, the standard 20 mm rod is well-supported inside the barrel. If the load applies a significant side force, consider an external linear guide rail rather than relying solely on the rod bearing, as tie-rod cylinders are designed primarily for axial push-pull loads.
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 SC50X125CA FAQ
At 0.7 MPa (7 bar) the SC50 bore generates 1374 N of force on the push stroke. The maximum operating force at 0.9 MPa is 1767 N. The theoretical force at 1.0 MPa is 200 kgf, though this exceeds the rated operating pressure.
Yes, if your original cylinder also uses a rear single clevis mount. The CA configuration includes the clevis bracket (F-SC50CA) on the rear cap. If your old cylinder had a foot mount (LB) or basic nut mount, you would need to change the mounting accessory or select the matching suffix code.
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