Airtac SC50 Standard Cylinder SC50X25SFA
The AirTAC Airtac SC50 Standard Cylinder SC50X25SFA 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 SC50X25SFA
The SC50X25SFA is a compact-stroke double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa). Its 50 mm bore houses a 20 mm diameter piston rod with M16x1.5 male threads, and the 25 mm standard stroke suits short clamping, ejecting, or positioning tasks where space is tight.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The FA front rectangular flange (part F-SC50FA) mounts the cylinder rigidly from the rod-end face, ideal for panel or bulkhead installations. TPU seals and PT1/4 ports are standard, with an adjustable air cushion absorbing end-of-stroke impact.
Airtac SC50 Standard Cylinder SC50X25SFA Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X25SFA |
|---|---|
| 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 SC50X25SFA
| 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 SC50X25SFA Is Used
Short-Stroke Clamping
The 25 mm stroke and 982 N force at 0.5 MPa make it ideal for rapid part clamping in CNC fixtures, where the FA flange mounts directly to a machine bulkhead and the magnet confirms jaw position.
Product Ejection
Delivers a fast, repeatable push to eject small parts from a conveyor or assembly nest. The front flange keeps the cylinder body behind the panel, with sensors detecting end-of-stroke.
Press-Fit Assembly
Used in benchtop assembly stations for light press-fit operations. The adjustable cushion protects tooling at the end of the short, high-cycle stroke, while the magnet enables cycle counting.
Is the Airtac SC50 Standard Cylinder SC50X25SFA the Right Cylinder?
For applications needing slightly more force, the 63 mm bore SC63 series provides 1559 N at 0.5 MPa. If a shorter body is preferred, verify that the 25 mm stroke meets your travel requirement—stepping down to a 40 mm bore reduces force to 628 N at 0.5 MPa. The 25 mm stroke is well within the 50 mm bore's 1200 mm maximum standard stroke.
When replacing an existing cylinder, match five points: 50 mm bore, 25 mm stroke, PT1/4 port thread, FA front flange mounting, and the -S magnet for sensor compatibility. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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 SC50X25SFA FAQ
At 0.5 MPa supply pressure, the cylinder produces 982 N extending (push) and 825 N retracting (pull). At 0.7 MPa, push force rises to 1374 N. The theoretical maximum at 1.0 MPa is 200 kgf (1961 N).
Yes. The -S suffix indicates a built-in magnet on the piston, designed for AirTAC CMSG (reed) and DMSG/EMSG (solid-state) sensors that clamp onto the cylinder's tie-rod barrel. Always match the sensor type to your controller input.
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