The AirTAC Airtac SC50 Standard Cylinder SC50X78CA is a genuine double-acting standard air cylinder with a Ø50mm bore and 78mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC50X78CA is a double-acting tie-rod cylinder with a 50 mm bore and a 78 mm stroke, featuring a rear single clevis (CA) mount for pivoting applications. It produces a push force of 982 N at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa, driven by a 20 mm diameter piston rod with an M16x1.5 male thread.
This model includes an adjustable pneumatic cushion (21 mm length) at both ends to decelerate the piston smoothly, reducing end-of-stroke impact. The PT1/4 port and standard TPU seals suit operating temperatures from -20 to +70 °C, making it a reliable workhorse for general industrial automation tasks.
| Model | Airtac SC50 Standard Cylinder SC50X78CA |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 78 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.
| 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.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×78 | 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.
The rear clevis mount allows the cylinder to pivot as it opens and closes a hopper or trailer gate, with 982 N of force at standard shop air pressure to move bulk materials reliably.
Provides consistent 1767 N clamping force at 0.9 MPa for welding jigs and assembly fixtures, with the clevis mount enabling easy integration into pivoting clamp arms.
Operates a pivoting diverter on a conveyor line, using the CA clevis to swing the gate between lanes. The adjustable cushion ensures quiet, low-impact operation at speeds up to 800 mm/s.
For higher force requirements, stepping up to the 63 mm bore SC63 series provides 1559 N of push at 0.5 MPa, while the 40 mm bore SC40 offers 628 N if a more compact cylinder is preferred. The 78 mm stroke is a standard length within the SC50 family, which supports strokes up to 1200 mm.
When replacing an existing cylinder, ensure a 5-point match: 50 mm bore, 78 mm stroke, PT1/4 port thread, rear single clevis mounting (F-SC50CA), and no built-in magnet. The SC is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
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.
No. The SC50X78CA 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 rod can drift or drop. For load-holding applications, you must add a pilot-operated check valve or an external mechanical rod lock.
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