The AirTAC Airtac SC40 Standard Cylinder SC40X80H is a genuine double-acting standard air cylinder with a Ø40mm bore and 80mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X80H is a double-acting tie-rod cylinder equipped with high-temperature Viton (FKM) seals, extending the operating range from the standard -20°C up to +150°C. With an 80 mm stroke and a 16 mm diameter piston rod, it delivers 628 N of push force at 0.5 MPa, making it a reliable actuator for hot environments.
This model features a body length A of 142 mm and a 21 mm adjustable air cushion at each end to decelerate the piston smoothly. The PT1/4 port and M12x1.25 rod thread are standard, and the cylinder is rated for a maximum operating pressure of 1.0 MPa.
| Model | Airtac SC40 Standard Cylinder SC40X80H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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.
Ideal for actuators near ovens, autoclaves, or foundry equipment where ambient temperatures exceed 70°C, thanks to its 0-150°C Viton seal rating.
Operates reliably in clamping and ejecting hot parts from molds or welding fixtures, where standard seals would degrade quickly.
Suitable for environmental test chambers and lab automation that cycle through high-temperature sterilization or drying processes.
For applications needing more force, stepping up to the 50 mm bore SC50 series provides 982 N of push at 0.5 MPa. If a shorter, more compact cylinder is acceptable, the 32 mm bore offers 402 N. When replacing an existing unit, ensure a 5-point match: 40 mm bore, 80 mm stroke, PT1/4 ports, basic (no) mounting, and the absence of a magnet. The Viton seal is critical for high-temperature compatibility.
Quick checklist
At the maximum operating pressure of 1.0 MPa, the theoretical push force is 1130 N. At a typical plant pressure of 0.7 MPa, it provides 879 N of push force.
No, the SC40X80H is a double-acting cylinder and will not hold its position if pressure is exhausted or the valve is centered. For load holding, an external rod lock or pilot-operated check valve is required.
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