The AirTAC Airtac SC40 Standard Cylinder SC40X275N is a genuine double-acting standard air cylinder with a Ø40mm bore and 275mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X275N is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 40 mm bore with a 275 mm stroke. This model is fitted with NBR (nitrile) seals, making it a cost-effective choice for general industrial environments within the standard -20 to +70 °C temperature band. At 0.5 MPa operating pressure, it generates 628 N of push force and 528 N on the pull stroke, driven by a 16 mm diameter piston rod.
With a compact body length A of 142 mm, the total extended length reaches approximately 417 mm. The cylinder features a PT1/4 port and an M12x1.25 rod thread, with an adjustable air cushion of 21 mm at each end to decelerate the piston smoothly. The 275 mm stroke is well within the 1200 mm maximum standard stroke for this bore size, ensuring ready availability as a standard configuration.
| Model | Airtac SC40 Standard Cylinder SC40X275N |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 275 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. |
| ×275 | 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 275 mm stroke and 628 N push force at 0.5 MPa effectively operate flipper gates on conveyor lines, diverting packages or components in sorting and packaging systems.
Provides consistent clamping force for jigs and assembly fixtures. The NBR seals offer reliable performance in standard shop air environments, holding workpieces securely during machining or welding.
Suitable for actuating chutes, diverter flaps, or tensioning arms on agricultural equipment like balers or seeders, where a robust 40 mm bore cylinder with a 275 mm reach is needed.
Select the SC40 bore when your application requires a push force around 628 N at 0.5 MPa. If your load calculation exceeds this, stepping up to the SC50 bore provides 982 N of force at the same pressure. For lighter, more compact needs, the SC32 bore delivers 402 N. This 275 mm stroke is moderate, but always check for side loads; if the load is not guided, consider an external guide rail to protect the 16 mm rod and bearing from bending moments.
For a direct replacement, match five key points: the 40 mm bore, 275 mm stroke, PT1/4 port thread, NBR seal material, and the basic (no bracket) mounting configuration. This cylinder is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At the standard operating pressure of 0.5 MPa, 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 increases to 1130 N. These forces are theoretical and do not account for system friction losses.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 cylinder of the same bore and stroke. It is not dimensionally interchangeable. It is a direct replacement only for another AirTAC SC40 cylinder with matching stroke, port thread (PT), and NBR seals.
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