Airtac SC50 Standard Cylinder SC50X40N
The AirTAC SC50 Standard Cylinder SC50X40N is a genuine double-acting standard air cylinder with a Ø50mm bore and 40mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke40 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SC50 Standard Cylinder SC50X40N
The SC50X40N is a compact-stroke double-acting pneumatic cylinder from the AirTAC SC tie-rod series, built with a 50 mm bore and a 40 mm stroke. At 0.5 MPa operating pressure it generates 982 N of push force and 825 N of pull force, making it a capable actuator for short, repetitive linear moves. The piston rod is 20 mm diameter with an M16x1.5 male thread, and the adjustable air cushion at each end is 21 mm long to soften end-of-stroke impact.
This model is specified with NBR (nitrile) seals, which provide reliable sealing for general industrial air service. The body length A is 150 mm, giving a compact extended length of only 190 mm. Ports are PT1/4 and the cylinder is double-acting, requiring air pressure for both extend and retract strokes. It is a genuine AirTAC SC cylinder, factory-built and tested for consistent performance.
Airtac SC50 Standard Cylinder SC50X40N Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X40N |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 SC50X40N
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 SC50X40N Is Used
Short-Stroke Clamping
The 40 mm stroke and 982 N push force at 0.5 MPa suit compact clamping fixtures in machining or assembly cells where a firm, repeatable hold is needed on each cycle.
Part Ejection
Ideal for ejector or kicker stations on conveyors, where a short, sharp linear motion pushes a part off the line. The 20 mm rod resists the impact loads of repetitive ejection.
Press-Fit Insertion
Delivers controlled force for light press-fit or insertion operations. The adjustable cushion helps prevent tooling bounce at the end of the short 40 mm stroke.
Is the Airtac SC50 Standard Cylinder SC50X40N the Right Cylinder?
Choose the SC50X40N when your application needs a short 40 mm stroke with the force capacity of a 50 mm bore. If you need more force at the same pressure, stepping up to the 63 mm bore delivers 1559 N push at 0.5 MPa; if space is tight and force requirements are lower, the 40 mm bore provides 628 N. For strokes of 300 mm or longer on a 20 mm rod, evaluate side-load conditions carefully—an external guide or a guided cylinder is recommended to protect the rod bearing from bending loads.
When replacing an existing cylinder, match these five points: 50 mm bore, 40 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and no magnet. This model uses NBR seals; if your environment runs above 70 °C, consider the -H Viton variant for 0 to +150 °C operation.
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 SC50X40N FAQ
At 0.5 MPa (5 bar) the cylinder produces 982 N pushing force and 825 N pulling force. At the maximum operating pressure of 1.0 MPa, theoretical push force is 200 kgf (approximately 1961 N).
The SC50X40N uses NBR seals rated for -20 to +70 °C. For continuous operation above 70 °C or in hot, aggressive air, order the SC50X40H variant with Viton (FKM) seals, which extends the temperature range to 0 to +150 °C.
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