The AirTAC Airtac SC40 Standard Cylinder SC40X140 is a genuine double-acting standard air cylinder with a Ø40mm bore and 140mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X140 is a 40 mm bore, 140 mm stroke double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (879 N at 0.7 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion make it a solid mid-stroke actuator for general industrial automation where a compact footprint is needed.
With a body length A of 142 mm, the total extended length is approximately 282 mm. The SC series is shorter than a typical ISO 15552 cylinder, so it fits into tighter machine envelopes. This model uses PT1/4 ports and an M12x1.25 rod thread, and operates on filtered air from 0.15 to 1.0 MPa.
| Model | Airtac SC40 Standard Cylinder SC40X140 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 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. |
| ×140 | 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 140 mm stroke and 628 N push force are ideal for raising and lowering part stops or small divert gates on packaging and assembly conveyors.
Use the SC40X140 for pneumatic clamping in machining or welding fixtures. The adjustable cushion reduces impact at the end of the 140 mm travel, protecting the fixture.
Deploy this cylinder to eject finished parts from a nest or push cartons onto a takeaway conveyor, where the 140 mm stroke provides sufficient reach.
Choose the SC40X140 when your application needs around 628 N of force at standard plant pressure. If you require more force, stepping up to the 50 mm bore SC50 series provides 982 N at 0.5 MPa. For a direct replacement, match bore (40 mm), stroke (140 mm), port thread (PT1/4), and mounting style exactly—this basic model ships without brackets or a magnet.
At 140 mm stroke, the 16 mm rod is well-supported for axial loads, but avoid unguided side loads. If your load applies lateral force, add an external guide rail or consider a guided cylinder to prevent rod bending and premature seal wear.
Quick checklist
At 0.5 MPa air pressure, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
Not directly. The AirTAC SC series is a tie-rod cylinder that is shorter in overall length than a standard ISO 15552 cylinder, so mounting dimensions and body length will differ. It is a direct replacement only for another AirTAC SC40 cylinder with matching stroke, port thread, and mounting.
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