Airtac SC50 Standard Cylinder SC50X125SCB
The AirTAC Airtac SC50 Standard Cylinder SC50X125SCB is a genuine double-acting standard air cylinder with a Ø50mm bore and 125mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke125 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X125SCB
The AirTAC SC50X125SCB is a double-acting tie-rod cylinder delivering 982 N of push force at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa. With a 50 mm bore and 125 mm stroke, this model features a 20 mm diameter piston rod and an adjustable air cushion length of 21 mm to decelerate end-of-stroke loads smoothly.
This specific configuration includes a built-in magnet (-S) for mounting CMSG/DMSG/EMSG sensors directly on the barrel, and a rear double clevis mount (CB, part F-SC50CB) for pivoting applications. The standard PT1/4 port and TPU seals suit general industrial environments from -20 to +70 °C.
Airtac SC50 Standard Cylinder SC50X125SCB Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X125SCB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 SC50X125SCB
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 SC50X125SCB Is Used
Linkage Actuation
The rear double clevis mount allows the cylinder to pivot freely, making it ideal for actuating linkages, levers, and dump mechanisms on agricultural or construction equipment where the load path changes angle.
Part Diverter Gates
With 1374 N of force at 0.7 MPa and magnetic piston sensing, this cylinder reliably operates diverter gates on conveyor lines, providing end-of-stroke confirmation to the PLC for high-speed sortation.
Clamping & Fixturing
The 125 mm stroke combined with 1767 N of clamping force at 0.9 MPa suits heavy-duty welding or machining fixtures. The adjustable cushion protects the fixture and workpiece from impact damage during rapid cycling.
Is the Airtac SC50 Standard Cylinder SC50X125SCB the Right Cylinder?
Choose the SC50 when your application needs between 982 N and 1767 N of force. If you require more force, step up to the SC63 bore which provides 1559 N at 0.5 MPa. For lower force requirements, the SC40 bore offers 628 N at the same pressure. The 125 mm stroke is a standard length for this bore.
When replacing an existing cylinder, match five points: 50 mm bore, 125 mm stroke, PT1/4 port thread, the CB rear double clevis mounting accessory, and the built-in magnet for sensor compatibility. This ensures a direct drop-in replacement for another AirTAC SC50X125SCB.
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 SC50X125SCB 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 force at 1.0 MPa is 200 kgf.
No. The SC50X125SCB is a double-acting cylinder that requires continuous air pressure to maintain position. If pressure is lost or the directional valve is centered, the piston can drift. For load holding, you must add a pilot-operated check valve or an external mechanical rod lock.
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