
The AirTAC Airtac SC40 Standard Cylinder SC40X30 is a genuine double-acting standard air cylinder with a Ø40mm bore and 30mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X30 is a compact-stroke member of the AirTAC SC tie-rod cylinder family, delivering 628 N of push force at 0.5 MPa. Its 30 mm stroke suits short linear positioning tasks where a 16 mm diameter piston rod provides good rigidity against buckling.
With a body length A of just 142 mm, this double-acting cylinder fits into tight spaces while still offering the adjustable pneumatic cushion standard on all SC models. The PT1/4 port and M12x1.25 rod thread make air connections and tooling attachment straightforward.
| Model | Airtac SC40 Standard Cylinder SC40X30 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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. |
| ×30 | 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 compact clamping fixtures in CNC machining where a 30 mm stroke provides sufficient jaw travel without excess overhang.
Used as a pneumatic stop gate on light-duty conveyors, extending quickly to halt or divert small packages with its 628 N push force.
Fits into lab automation equipment for precise, short-throw reagent dispensing or test-tube handling, benefiting from the clean, oil-free air operation.
For applications needing slightly more force in the same bore class, consider stepping up to the SC50 (982 N at 0.5 MPa). If a 30 mm stroke is too short, the SC40 is available in standard strokes up to 1200 mm. For a direct replacement, match bore (40 mm), stroke (30 mm), PT1/4 port thread, and basic mounting. If your existing cylinder uses a magnet for sensor feedback, select the -S suffix variant.
Quick checklist
At 0.7 MPa (7 bar), the SC40X30 delivers 879 N of push force on extension. The pull force on retraction is 528 N at 0.5 MPa, due to the area reduction from the 16 mm piston rod.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder, so mounting dimensions and body length are not interchangeable. It should only replace another AirTAC SC tie-rod cylinder with matching bore, stroke, and port thread.
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