The AirTAC Airtac SC50 Standard Cylinder SC50X950H is a genuine double-acting standard air cylinder with a Ø50mm bore and 950mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC50X950H is a double-acting tie-rod cylinder engineered for high-temperature environments, featuring Viton (FKM) seals that shift the operating range to 0–150 °C. With a 50 mm bore and a 950 mm stroke, it delivers 982 N of push force at 0.5 MPa and up to 1767 N at the maximum operating pressure of 0.9 MPa, making it a capable mid-range actuator.
This model uses a 20 mm diameter piston rod with M16x1.5 male threads and PT1/4 ports. The adjustable air cushion at each end (21 mm length) decelerates the piston smoothly, while the body length A of 150 mm keeps the overall envelope compact for a tie-rod design. As a genuine AirTAC component, it is built for reliable cycling in demanding thermal conditions.
| Model | Airtac SC50 Standard Cylinder SC50X950H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 950 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. |
| ×950 | 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.
Operates reliably in ambient temperatures up to 150 °C, actuating dampers, gates, or pushers near furnaces and ovens where standard seals would degrade.
Withstands the high-temperature sterilization cycles in autoclaves, providing the 950 mm stroke needed to transfer heavy medical or composite material trays.
Positions hot exhaust sampling probes or actuates throttle controls in enclosed test cells, leveraging the Viton seals' resistance to heat and aggressive vapors.
Select the SC50X950H when your application demands a mid-bore cylinder that can withstand elevated temperatures up to 150 °C. If you require higher force, stepping up to the 63 mm bore provides 1559 N at 0.5 MPa; for a lighter, more compact solution, the 40 mm bore offers 628 N at the same pressure. This 950 mm stroke is within the 1200 mm maximum standard stroke for the 50 mm bore.
For strokes of this length, always evaluate side-loading conditions. The 20 mm rod, while robust, can be subject to bending under significant lateral forces when fully extended. If side loads are unavoidable, consider pairing the cylinder with an external linear guide or switching to a guided cylinder assembly to protect the rod bearing and seals. For a direct replacement, match the 50 mm bore, 950 mm stroke, PT port thread, basic mounting, and the Viton seal designation.
Quick checklist
The theoretical push force at 0.5 MPa is 982 N, and the pull force is 825 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1767 N. The absolute maximum theoretical force at 1.0 MPa is 200 kgf, though operating pressure should not exceed 1.0 MPa.
No, the SC50X950H is a double-acting cylinder and does not hold its position when air pressure is exhausted or lost. The piston will drift or drop. If load holding is a safety requirement, you must add an external rod lock, a mechanical brake, or a pilot-operated check valve to the circuit.
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