The AirTAC Airtac SC40 Standard Cylinder SC40X75FA is a genuine double-acting standard air cylinder with a Ø40mm bore and 75mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X75FA is a 40 mm bore, 75 mm stroke double-acting pneumatic cylinder from the AirTAC SC tie-rod series. It generates 628 N of push force and 528 N of pull force when operated at 0.5 MPa, making it a capable actuator for medium-duty linear tasks. This model is equipped with an FA front rectangular flange (F-SC40FA) for secure panel or bulkhead mounting.
With a 16 mm diameter piston rod and M12x1.25 rod thread, the cylinder handles typical side loads well at this stroke length. The body length A is 142 mm, giving a compact extended length of 217 mm. It features an adjustable pneumatic cushion (21 mm) to decelerate the piston smoothly, uses PT1/4 ports, and operates reliably with filtered air within a -20 to +70 °C range thanks to its standard TPU seals.
| Model | Airtac SC40 Standard Cylinder SC40X75FA |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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. |
| ×75 | 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 628 N push force at 0.5 MPa is ideal for ejecting finished plastic or metal parts from injection molds or stamping dies, where the FA flange allows rigid mounting to the machine frame.
Actuates diverter gates on conveyor lines for package sorting. The 75 mm stroke provides a clean, fast sweep to redirect items, and the front flange simplifies integration onto the conveyor side wall.
Suitable for light-duty clamping fixtures and pressing operations in woodworking or assembly. The adjustable cushioning protects the workpiece and tooling from impact damage at the end of the 75 mm stroke.
For applications needing more force, stepping up to a 50 mm bore SC50 series provides 982 N of push force at the same 0.5 MPa pressure. If space is constrained and less force is acceptable, the 32 mm bore SC32 series delivers 402 N. This 75 mm stroke is a standard length, ensuring quick availability.
When replacing an existing cylinder, verify five key points for a direct fit: matching 40 mm bore, 75 mm stroke, PT1/4 port thread, the FA front flange mounting accessory, and the absence of a built-in magnet on this specific model. For strokes exceeding 300 mm, always assess side-load bending moments on the 16 mm rod; an external linear guide is recommended to protect the rod bearing and seals.
Quick checklist
At 0.7 MPa operating pressure, the push force on the 40 mm bore is 879 N. The maximum push force at the 0.9 MPa rated pressure is 1130 N. Always ensure your air supply can maintain the required pressure under flow to achieve these forces.
Yes, the FA suffix designates a front rectangular flange (accessory F-SC40FA) that is bolted directly to the rod-end head of the cylinder. This provides a rigid, perpendicular mounting surface, ideal for bulkhead installations where the cylinder body extends into a cavity or open space.
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