Airtac SC50 Standard Cylinder SC50X120SFA
The AirTAC Airtac SC50 Standard Cylinder SC50X120SFA is a genuine double-acting standard air cylinder with a Ø50mm bore and 120mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke120 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X120SFA
The SC50X120SFA is a double-acting single-rod pneumatic cylinder delivering a push force of 982 N at 0.5 MPa and up to 1767 N at the maximum operating pressure of 0.9 MPa. With a 50 mm bore and 120 mm stroke, it features a 20 mm diameter piston rod with an M16x1.5 thread for secure tooling attachment.
This model comes equipped with a built-in magnet (-S), allowing easy mounting of CMSG, DMSG, or EMSG reed and solid-state sensors directly onto the tie-rod barrel for precise end-of-stroke detection. The front rectangular flange (FA) enables rigid panel or bulkhead mounting, and the standard TPU seals provide reliable operation from -20 to +70 °C.
Airtac SC50 Standard Cylinder SC50X120SFA Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X120SFA |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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 SC50X120SFA
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 SC50X120SFA Is Used
Clamping & Fixturing
Ideal for medium-duty workholding where 982 N of clamping force at standard line pressure is required, and the front flange allows direct mounting to a fixture plate.
Material Handling
Provides a robust 120 mm push stroke for diverting or stopping parts on a conveyor line, with sensor-ready confirmation of each cycle.
Machine Tool Actuation
Suited for automated tool slides or guard door interlocks on CNC machines, where the magnet enables a compact, switch-monitored safety circuit.
Is the Airtac SC50 Standard Cylinder SC50X120SFA the Right Cylinder?
When selecting a cylinder for a 50 mm bore application, consider the force requirements. If 982 N at 0.5 MPa is insufficient, stepping up to a 63 mm bore provides 1559 N under the same conditions. For strokes over 300 mm, ensure the 20 mm rod is adequately supported against side loads; an external guide or a guided cylinder may be necessary to prevent rod bending and premature seal wear. For a direct replacement, match the bore, 120 mm stroke, PT port thread, FA front flange mount, and the -S magnet option.
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 SC50X120SFA FAQ
At the standard operating pressure of 0.5 MPa, the cylinder produces a push force of 982 N and a pull force of 825 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than a standard ISO 15552 cylinder. It is not dimensionally interchangeable. Only replace with another AirTAC SC50 cylinder matching the 120 mm stroke, PT ports, and FA front flange mount.
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