Airtac SC50 Standard Cylinder SC50X25STC
The AirTAC Airtac SC50 Standard Cylinder SC50X25STC 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 SC50X25STC
The SC50X25STC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa) from its 50 mm bore. With a compact 25 mm stroke, it is ideal for short-throw clamping, ejecting, and sorting tasks where space is limited.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, plus a centre trunnion (TC) mount with TCM1 bracket for pivoting applications. The 20 mm rod and M16x1.5 thread provide robust guidance, while the 21 mm adjustable air cushion protects end-of-stroke components.
Airtac SC50 Standard Cylinder SC50X25STC Technical Specifications
| Model | Airtac SC50 Standard Cylinder SC50X25STC |
|---|---|
| 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 SC50X25STC
| 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 SC50X25STC Is Used
Part Stops & Diverters
Short 25 mm stroke with trunnion pivot and sensor confirmation reliably stops or diverts small packages on conveyors.
Clamping Fixtures
982 N clamping force at 0.5 MPa and magnetic piston sensing ensure consistent part holding in machining or welding jigs.
Pivoting Linkages
The TC centre trunnion mount allows the cylinder body to swing, making it suitable for actuating levers, gates, and diverters.
Is the Airtac SC50 Standard Cylinder SC50X25STC the Right Cylinder?
Choose the SC50X25STC for short-stroke, pivoting actuation with sensor feedback. If you need more force, step up to the 63 mm bore (1559 N at 0.5 MPa); for lighter, faster cycling, the 40 mm bore (628 N) may suffice. The 25 mm stroke is well within the 1200 mm maximum for this bore.
For replacement, match five points: 50 mm bore, 25 mm stroke, PT port thread, centre trunnion (TC) mount with magnet (-S), and tie-rod body style. The trunnion pivot allows the cylinder to swing, reducing rod bending from misaligned loads.
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 SC50X25STC FAQ
At 0.5 MPa, the push force is 982 N and pull force is 825 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
No. The SC series is a tie-rod cylinder with a shorter body length than ISO 15552 cylinders. It is not dimensionally interchangeable. Replace only with another AirTAC SC50 tie-rod cylinder matching the bore, stroke, PT port, TC mount, and magnet option.
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