The AirTAC SC50 Standard Cylinder SC50X490TC 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 SC50X490TC is a double-acting pneumatic cylinder delivering 982 N of push force at 0.5 MPa (1767 N at 0.9 MPa) from a 50 mm bore. With a 490 mm stroke and a 20 mm diameter piston rod, it suits mid-length linear transfer tasks where the centre trunnion mount allows the cylinder body to pivot as the load moves through an arc.
This model includes a TC centre trunnion mount, supplied with the TCM1 bracket (F-SC50TC), enabling the cylinder to swing freely in its mid-body pivot. The adjustable air cushion at each end decelerates the piston over a 21 mm cushion length, reducing end-of-stroke shock. Ports are PT1/4 and the standard TPU seals operate reliably from -20 to +70 °C.
| Model | Airtac SC50 Standard Cylinder SC50X490TC |
|---|---|
| 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 and pivoting trunnion mount make this cylinder ideal for actuating diverter gates on conveyor lines, smoothly swinging product from one lane to another.
Delivers 1767 N of clamping force at 0.9 MPa for holding workpieces in welding or assembly fixtures, with the trunnion allowing the cylinder to self-align as the clamp closes.
Operates discharge doors on hoppers or chutes, where the centre trunnion mount accommodates the door's arc of travel and the 50 mm bore provides ample force to move bulk material.
The 50 mm bore SC series provides 982 N at 0.5 MPa. If your load demands more force at the same pressure, step up to the 63 mm bore (1559 N at 0.5 MPa); for a lighter, more compact solution, the 40 mm bore offers 628 N. At 490 mm stroke, the unsupported rod length is significant—ensure the load is guided externally to prevent rod bending and premature bearing wear, especially if any side load is present.
For a direct replacement, match five points: 50 mm bore, 490 mm stroke, PT1/4 ports, centre trunnion (TC) mounting with the TCM1 bracket, and the absence of a magnet. This cylinder is a tie-rod design, not an ISO 15552 profile, and is dimensionally shorter than an ISO 15552 cylinder of the same bore.
Quick checklist
At 0.7 MPa operating pressure, the 50 mm bore SC cylinder produces 1374 N of push force. The maximum push force at the 0.9 MPa operating limit is 1767 N.
No. The SC50X490TC is a double-acting cylinder and will not hold its position when air pressure is exhausted or the directional valve is centered. The piston will drift or drop under load. For load holding without live pressure, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve.
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