The AirTAC SC50 Standard Cylinder SC50X490S is a genuine double-acting standard air cylinder with a Ø50mm bore and 490mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC50X490S is a double-acting pneumatic cylinder with a 50 mm bore and 490 mm stroke, delivering a push force of 982 N at 0.5 MPa (1767 N at the 0.9 MPa maximum operating pressure). The 20 mm diameter piston rod and 21 mm adjustable air cushion at each end provide smooth deceleration for mid-range automation tasks.
This model includes the built-in magnet suffix -S, allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel for non-contact position sensing. The body length A is 150 mm, giving a total extended length of approximately 640 mm. Operating temperature range is -20 to +70 °C with the standard TPU/NBR seals.
| Model | Airtac SC50 Standard Cylinder SC50X490S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 490 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. |
| ×490 | 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 490 mm stroke moves components between conveyor lanes, while the built-in magnet lets CMSG sensors confirm end-of-stroke position to the PLC for reliable interlocking.
Delivers 1767 N of clamping force at 0.9 MPa to hold workpieces during machining or welding. The adjustable cushion protects the fixture from impact shock.
Pushes cartons or trays off a packaging line with a controlled 490 mm sweep. The sensor-ready barrel enables cycle counting and jam detection without extra brackets.
Choose the SC50 bore for push forces around 982 N at standard plant air. If your load requires more force, step up to the SC63 which provides 1559 N at 0.5 MPa; for a lighter, more compact solution, the SC40 offers 628 N. This 490 mm stroke is within the 1200 mm maximum standard stroke for the 50 mm bore.
For strokes of this length, avoid unsupported side loads which can bend the 20 mm rod or damage the bearing. Use an external guide rail or a guided cylinder assembly if the load is not perfectly axial. When replacing, match bore, stroke, PT port thread, the built-in magnet (-S), and the basic mounting configuration.
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.
Yes, provided the replacement matches the 50 mm bore, 490 mm stroke, PT 1/4 port thread, and the built-in magnet (-S) for sensors. The SC is a tie-rod cylinder, not an ISO 15552 profile, so verify the body length A of 150 mm and the M16x1.5 rod thread match your existing mounting.
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