The AirTAC SC50 Standard Cylinder SC50X620 is a genuine double-acting standard air cylinder with a Ø50mm bore and 620mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC50X620 is a double-acting tie-rod cylinder delivering a push force of 982 N at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa. Its 20 mm diameter piston rod and 21 mm adjustable air cushion are sized for moderate-load applications requiring a longer reach, with a body length A of 150 mm plus the 620 mm stroke.
This 620 mm stroke exceeds the standard maximum of 1200 mm for the 50 mm bore, making it a non-standard, made-to-order configuration. The PT1/4 port and M16x1.5 rod thread connect directly into common pneumatic circuits, while the TPU seals provide a reliable operating range from -20 to +70 °C.
| Model | Airtac SC50 Standard Cylinder SC50X620 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 620 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. |
| ×620 | 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 620 mm stroke moves components between distant conveyor stations or into multi-level assembly nests, with adjustable cushioning to protect the load at end-of-travel.
Applies 1767 N of force at 0.9 MPa for holding large workpieces in secondary machining or welding fixtures where the cylinder must retract fully for part clearance.
Uses its full 620 mm travel to push totes or activate diverter arms in material handling lines, with a tie-rod construction that simplifies maintenance in dusty environments.
Choose the SC50 bore when your application needs around 982 N of push force at 0.5 MPa. If the load requires more, stepping up to the SC63 bore provides 1559 N at the same pressure. For a lighter, more compact solution, the SC40 bore delivers 628 N.
At a 620 mm stroke, the unsupported rod is vulnerable to bending under side loads. Fit an external linear guide or switch to a guided cylinder to protect the rod bearing and seals. For a direct replacement, match the 50 mm bore, 620 mm stroke, PT1/4 port thread, basic mounting, and ensure the magnet option (-S) matches your sensor setup.
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 increases to 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
A stroke of 620 mm on a 20 mm rod creates a long moment arm. Any side load will cause bending and premature seal wear. Use an external guide rail or a rod-alignment coupler to ensure the load is purely axial, or consider a guided cylinder for integrated support.
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