
The AirTAC SC50 Standard Cylinder SC50X550 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 SC50X550 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 50 mm bore with a 550 mm stroke. At 0.5 MPa it generates 982 N of push force and 825 N of pull force, rising to 1767 N push at the maximum operating pressure of 0.9 MPa, making it a capable mid-range actuator for linear motion tasks.
This model features a 20 mm diameter piston rod with an M16x1.5 male thread and PT1/4 port connections. The total extended body length is approximately 700 mm (150 mm body length A plus the 550 mm stroke). Its adjustable pneumatic cushion, with a 21 mm cushion length, decelerates the piston smoothly at both ends of travel to reduce impact and noise.
| Model | Airtac SC50 Standard Cylinder SC50X550 |
|---|---|
| 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.
Pushes or diverts boxes and parts on packaging and assembly lines where a 550 mm reach is needed to span conveyor widths.
Provides consistent clamping force for medium-duty jigs, fixtures, and light pressing operations in metalworking and woodworking.
Operates gates, chutes, and sorting mechanisms on agricultural machinery, handling dusty conditions with its robust tie-rod construction.
For applications needing slightly less force, the 40 mm bore SC40 series delivers 628 N push at 0.5 MPa. If your load requires more thrust, stepping up to the 63 mm bore SC63 provides 1559 N push at the same pressure. With a 550 mm stroke, this cylinder has a significant unsupported rod extension. Ensure the load is guided externally or use a guided cylinder to prevent rod bending and premature bearing wear from side loads.
To ensure a correct replacement, match these five points: 50 mm bore, 550 mm stroke, PT1/4 port thread, the specific mounting accessory (this is a basic body, so no brackets are included), and the magnet option (this model has no built-in magnet).
Quick checklist
At 0.5 MPa (5 bar), 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 force at 1.0 MPa is 200 kgf.
For a 550 mm stroke with a 20 mm rod, external guidance is strongly recommended if any side load is present. The rod is designed for axial push/pull forces; unguided side loads can cause bending and damage the rod bearing and seals.
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