The AirTAC SC50 Standard Cylinder SC50X550N 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 SC50X550N is a double-acting pneumatic cylinder with a 50 mm bore and a 550 mm non-standard stroke, assembled with NBR (nitrile) seals. 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.
This tie-rod cylinder has a PT1/4 port and a body length A of 150 mm, giving a total extended length of approximately 700 mm. The 21 mm adjustable air cushion at each end decelerates the piston smoothly. As a non-standard stroke length beyond the 1200 mm maximum standard for bore 50, this unit is a made-to-order genuine AirTAC product.
| Model | Airtac SC50 Standard Cylinder SC50X550N |
|---|---|
| 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 moves components between distant conveyor stations or pallet positions, with NBR seals suited for general industrial air supplies.
Applies 1767 N of clamping force at 0.9 MPa for woodworking or assembly jigs, holding workpieces firmly during gluing or fastening cycles.
Raises and lowers tooling or small sub-assemblies in a workstation. The adjustable cushion prevents hard stops that could disturb positioned parts.
Choose the SC50 bore for mid-range clamping, pressing, and material handling tasks where the 982 N push at 0.5 MPa fits the load. If you need more force, stepping up to the SC63 bore provides 1559 N at the same pressure. For lighter, faster cycling, the SC40 bore delivers 628 N.
At a 550 mm stroke, the 20 mm rod is subject to bending under side loads. Use an external linear guide or a guided cylinder to protect the rod bearing and piston seals. For direct replacement, match bore (50 mm), stroke (550 mm), PT1/4 port thread, NBR seal material, and basic mounting. If your previous cylinder had a magnet, order the -S variant.
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, push force reaches 1767 N. The theoretical maximum at 1.0 MPa is 200 kgf.
No. The SC50X550N is a double-acting cylinder and will drift or drop if pressure is exhausted or the directional valve is centered. To hold a position without live pressure, you must add a pilot-operated check valve or an external mechanical rod lock.
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