Airtac SC50 Standard Cylinder SC50X120S
The AirTAC Airtac SC50 Standard Cylinder SC50X120S 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 SC50X120S
The SC50X120S is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa). Its 20 mm diameter piston rod and 21 mm adjustable air cushion provide dependable deceleration for mid-range automation tasks.
This model includes a built-in magnet, allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing. The 120 mm stroke is well within the 1200 mm maximum standard stroke for the 50 mm bore, making it a standard, readily available configuration.
Airtac SC50 Standard Cylinder SC50X120S Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X120S |
|---|---|
| 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 SC50X120S
| 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 SC50X120S Is Used
Packaging Line Diverters
The 120 mm stroke and sensor-ready magnet make this cylinder ideal for actuating gates or pushers on packaging conveyors, where mid-stroke position confirmation is required for sequencing.
Clamping & Fixturing
With 982 N of clamping force at standard line pressure, the SC50X120S reliably holds workpieces in CNC machining or welding fixtures, with sensors confirming clamp engagement.
Material Handling Stops
Use this cylinder as a pneumatic stop or lift in material handling systems. The built-in magnet enables end-of-stroke detection to coordinate with palletizers or transfer carts.
Is the Airtac SC50 Standard Cylinder SC50X120S the Right Cylinder?
For applications needing slightly less force, the 40 mm bore SC40 series offers 628 N at 0.5 MPa. If higher thrust is required, stepping up to the 63 mm bore provides 1559 N at the same pressure. Always match replacements across five points: 50 mm bore, 120 mm stroke, PT port thread, built-in magnet (-S), and the specific mounting accessory. The basic configuration here uses no mounting bracket, so the cylinder body must be supported by the machine structure.
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 SC50X120S 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, the push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
Yes. The -S suffix indicates a built-in magnet, making it compatible with AirTAC CMSG, DMSG, and EMSG series sensors. These sensors clamp onto the tie-rods to detect piston position without additional brackets.
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