Airtac SC50 Standard Cylinder SC50X140STC
The AirTAC Airtac SC50 Standard Cylinder SC50X140STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 140mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
- BoreØ50 mm
- Stroke140 mm
- Port sizePT1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SC50 Standard Cylinder SC50X140STC
The SC50X140STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1374 N at 0.7 MPa). Its 140 mm stroke suits medium-reach clamping and positioning tasks, with a 20 mm diameter piston rod providing good rigidity for inline loads.
This model features a built-in magnet (-S) for barrel-mounted CMSG/DMSG/EMSG sensors and a TC centre trunnion mount, shipped with the TCM1 bracket (F-SC50TC), allowing the cylinder to pivot during operation. The adjustable air cushion at each end decelerates the piston smoothly over the 21 mm cushion length, reducing end-of-stroke shock.
Airtac SC50 Standard Cylinder SC50X140STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X140STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 140 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 SC50X140STC
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×140 | 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 SC50X140STC Is Used
Conveyor Diverters
Actuating diverter gates on packaging conveyors where the mid-stroke position feedback from magnetic sensors confirms gate status.
Swing Clamps
Clamping fixtures in CNC machining cells, using the trunnion mount to swing the cylinder clear for part loading and unloading.
Safety Interlocks
Operating press-guard interlocks that pivot into place, with sensors verifying the guard is closed before the cycle starts.
Is the Airtac SC50 Standard Cylinder SC50X140STC the Right Cylinder?
For higher force, step up to the 63 mm bore which provides 1559 N at 0.5 MPa; for a lighter, faster actuator, the 40 mm bore offers 628 N. The 140 mm stroke is well within the 1200 mm maximum standard stroke for this bore. When replacing, match five points: 50 mm bore, 140 mm stroke, PT port thread, TC centre trunnion mounting, and the -S magnet for sensor compatibility.
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 SC50X140STC FAQ
At 0.5 MPa, the SC50X140STC provides 982 N extending and 825 N retracting. At the maximum operating pressure of 0.9 MPa, the extending force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
Match the bore (50 mm), stroke (140 mm), port thread (PT), TC centre trunnion mount, and the -S magnet option. The trunnion pivot point and sensor type must also align with your existing setup. This is a tie-rod cylinder, not an ISO 15552 profile, so dimensional interchangeability is limited to AirTAC SC series units with the same configuration.
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