Airtac SC50 Standard Cylinder SC50X400N
The AirTAC SC50 Standard Cylinder SC50X400N is a genuine double-acting standard air cylinder with a Ø50mm bore and 400mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke400 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 SC50X400N
The SC50X400N is a 50 mm bore, 400 mm stroke double-acting pneumatic cylinder from the AirTAC SC tie-rod series, fitted with NBR (nitrile) seals for general industrial air service. At 0.5 MPa it generates 982 N pushing force and 825 N pulling force, placing it in a mid-range thrust class suitable for pressing, clamping, and material-transfer tasks.
This model uses a 20 mm diameter piston rod with an M16x1.5 male thread and PT1/4 ports. The adjustable air cushion at each end (21 mm cushion length) decelerates the piston smoothly, and the tie-rod construction with a body length A of 150 mm gives a total extended length of approximately 550 mm. The 400 mm stroke is within the standard range for bore 50 (max 1200 mm).
Airtac SC50 Standard Cylinder SC50X400N Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X400N |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 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 SC50X400N
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×400 | 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 SC50X400N Is Used
Package Sorting Gate
The 400 mm stroke provides enough travel to divert cartons between two conveyor lanes. The 982 N push force at 0.5 MPa moves medium-weight packages reliably, and NBR seals handle the typical shop-air environment.
Clamp & Fixture Actuation
Used on a welding or assembly fixture to clamp parts with controlled force. The adjustable cushioning reduces impact at the end of the 400 mm stroke, protecting the tooling and part from vibration.
Pallet Stop / Lift-Transfer
Raises or stops a pallet on a gravity roller bed. The 20 mm rod and tie-rod construction provide the rigidity needed for repetitive cycling in logistics hubs, while the NBR seals offer good wear resistance.
Is the Airtac SC50 Standard Cylinder SC50X400N the Right Cylinder?
Choose the SC50 bore when your application needs roughly 980–1770 N of force at typical plant pressures (0.5–0.9 MPa). If you need more force, stepping up to the SC63 delivers 1559 N push at 0.5 MPa; for a lighter, more compact solution the SC40 provides 628 N. At 400 mm stroke the unsupported rod is extended significantly—avoid direct side loads and consider an external linear guide or a guided cylinder if the load is not perfectly axial.
For a direct replacement, match five points: 50 mm bore, 400 mm stroke, PT1/4 ports, the NBR seal material, and the basic (no-bracket) mounting configuration. This cylinder is not dimensionally interchangeable with ISO 15552 profile cylinders; it replaces another AirTAC SC50 tie-rod unit of the same stroke and port type.
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 SC50X400N FAQ
At 0.5 MPa the push force is 982 N and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf (1961 N).
No. The SC50X400N is a double-acting cylinder and will drift or drop if pressure is lost or the directional valve is centered. To hold a load safely without live pressure, you must add an external rod lock, a pilot-operated check valve, or a mechanical brake.
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