The AirTAC Airtac SC40 Standard Cylinder SC40X270SN is a genuine double-acting standard air cylinder with a Ø40mm bore and 270mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X270SN is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa and up to 1130 N at 0.9 MPa. With a 40 mm bore and 270 mm stroke, this model features a 16 mm diameter piston rod and PT1/4 ports, making it a capable mid-range actuator for general industrial automation.
This configuration includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke detection without external brackets. The NBR (-N) seal material provides reliable sealing for standard temperature ranges, and the body length A of 142 mm keeps the overall footprint compact.
| Model | Airtac SC40 Standard Cylinder SC40X270SN |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 270 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. |
| ×270 | 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.
Actuates diverter arms on conveyor lines, using the 628 N push force to reliably redirect cartons and parcels. The built-in magnet confirms gate position for sorting logic.
Provides the controlled 1130 N maximum thrust for pressing bushings or pins into light assemblies. The NBR seals are compatible with common shop air lubricants.
Operates linear sampling mechanisms in diagnostic equipment, where the compact 142 mm body length and sensor-ready magnet simplify integration into tight machine frames.
For applications needing slightly less force, the 32 mm bore SC32 series offers 402 N at 0.5 MPa. If higher thrust is required, stepping up to the 50 mm bore provides 982 N. Always match the replacement cylinder on all five key points: 40 mm bore, 270 mm stroke, PT port thread, the built-in magnet (-S), and the basic mounting style.
At a 270 mm stroke, the 16 mm rod is robust for most axial loads. However, if the application involves any significant side loading, consider adding an external linear guide or switching to a guided cylinder assembly to prevent rod bending and premature bearing wear.
Quick checklist
At 0.5 MPa (5 bar), 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 cylinder is designed for AirTAC's CMSG (reed) and DMSG/EMSG (solid-state) sensors, which clamp directly onto the barrel's sensor groove. Compatibility with other brands is not guaranteed and should be confirmed by testing.
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