Airtac SC50 Standard Cylinder SC50X25N
The AirTAC Airtac SC50 Standard Cylinder SC50X25N is a genuine double-acting standard air cylinder with a Ø50mm bore and 25mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X25N
The SC50X25N is a 50 mm bore, 25 mm stroke double-acting pneumatic cylinder from the AirTAC SC tie-rod series. At 0.5 MPa it delivers 982 N push force and 825 N pull force, making it a compact workhorse for short-travel clamping, ejecting, and pressing operations. This model is fitted with NBR (nitrile) seals as standard for general industrial air service.
With a 20 mm diameter piston rod and M16x1.5 rod thread, the cylinder provides excellent rigidity for its short 25 mm stroke. The body length A is 150 mm, giving a total extended length of just 175 mm. The adjustable air cushion (21 mm long) decelerates the piston quietly at both ends, and the PT1/4 port supplies ample flow for cycle speeds up to 800 mm/s.
Airtac SC50 Standard Cylinder SC50X25N Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X25N |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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 SC50X25N
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SC50X25N Is Used
Short-Stroke Clamping
The 25 mm stroke and 982 N force at 0.5 MPa make it ideal for pneumatic clamping fixtures on CNC routers, drilling jigs, and welding stations where a firm, repeatable hold is needed in a tight envelope.
Part Ejection & Stamping
Delivers a quick, controlled push for ejecting parts from injection molds or operating a small stamping die. The NBR seals handle the fast cycle rates typical of these applications.
Diverter & Stop Gates
Actuates a short-throw diverter gate or product stop on a conveyor line. The adjustable cushion prevents hard metal-to-metal impact at the end of stroke, extending service life.
Is the Airtac SC50 Standard Cylinder SC50X25N the Right Cylinder?
Choose the SC50X25N when you need a compact 50 mm bore actuator for a short, direct push. If your force requirement is lower, stepping down to the 40 mm bore (628 N at 0.5 MPa) saves space and air consumption. For higher force, the 63 mm bore provides 1559 N at the same pressure.
This cylinder is a direct replacement for an existing AirTAC SC50X25N or another tie-rod cylinder matching these five points: 50 mm bore, 25 mm stroke, PT1/4 ports, basic (no bracket) mounting, and no magnet. Always verify the port thread type and seal material when retrofitting.
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 SC50X25N FAQ
At 0.5 MPa the push force is 982 N. At 0.7 MPa it rises to 1374 N, and at the maximum operating pressure of 0.9 MPa it reaches 1767 N. The theoretical maximum force at 1.0 MPa is 200 kgf.
Yes, provided the bore, stroke, port thread, and mounting are identical. This SC50X25N uses NBR seals, which are standard for most industrial air systems. If your original cylinder used TPU seals, the performance is equivalent; if it used Viton (H) for high-temperature duty, ensure your application stays within NBR's temperature range.
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