The AirTAC SC50 Standard Cylinder SC50X550STC is a genuine double-acting standard air cylinder with a Ø50mm bore and 550mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC50X550STC is a double-acting single-rod pneumatic cylinder with a 50 mm bore and a non-standard 550 mm stroke, delivering 982 N of push force at 0.5 MPa and up to 1767 N at 0.9 MPa. It features a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 port connections, making it a robust mid-bore actuator for moderate thrust applications.
This specific model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors and is supplied with a centre trunnion mount (TC) including the TCM1 bracket for pivoting loads. The tie-rod construction provides a shorter overall length than ISO 15552 cylinders, with a body length A of 150 mm and an adjustable air cushion of 21 mm to decelerate the piston smoothly at end-of-stroke.
| Model | Airtac SC50 Standard Cylinder SC50X550STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 550 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. |
| ×550 | 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 550 mm stroke and centre trunnion mount allow this cylinder to pivot a diverter gate on a conveyor line, directing packages between lanes with sensor-confirmed positioning via the built-in magnet.
With 1767 N of clamping force at 0.9 MPa, this cylinder securely holds workpieces in CNC or welding fixtures. The trunnion mount lets the body pivot as the clamp engages, reducing rod side-load.
Operates a discharge door on a bulk material hopper. The 550 mm stroke provides a wide opening arc when pivoted on the TC mount, and the magnet enables end-of-travel feedback to the control system.
Choose the SC50 bore when your application needs between 825 N (pull) and 982 N (push) at standard 0.5 MPa pressure. If you require higher force, step up to the SC63 bore which provides 1559 N push at 0.5 MPa; for a lighter, more compact solution, the SC40 bore delivers 628 N push at 0.5 MPa. This 550 mm stroke exceeds the standard maximum of 1200 mm for the 50 mm bore but is still within the non-standard range.
For this 550 mm stroke length, be mindful of side loading on the 20 mm rod. Long, unsupported strokes can cause rod deflection and bearing wear under lateral forces—consider an external guide rail or a guided cylinder configuration if the load is not perfectly axial. When replacing an existing cylinder, match these five points exactly: 50 mm bore, 550 mm stroke, PT1/4 port thread, centre trunnion (TC) mounting with the F-SC50TC bracket, and the built-in magnet (-S) for sensor compatibility.
Quick checklist
At the standard operating pressure of 0.5 MPa, the push force is 982 N and the pull force on the return stroke is 825 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1767 N. The theoretical maximum force at 1.0 MPa is 200 kgf.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 cylinder, so it is not dimensionally interchangeable. For a direct replacement, you must match another AirTAC SC tie-rod cylinder with the same 50 mm bore, 550 mm stroke, PT ports, centre trunnion mount (F-SC50TC), and built-in magnet.
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