The AirTAC Airtac SC40 Standard Cylinder SC40X275S 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 AirTAC SC40X275S is a double-acting tie-rod cylinder with a 40 mm bore and 275 mm stroke, delivering a push force of 628 N at 0.5 MPa (up to 1130 N at 0.9 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration for mid-range linear tasks.
This model includes a built-in magnet (-S suffix), allowing direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors on the barrel for contactless position sensing. The body length is 142 mm, making the total extended length approximately 417 mm, with PT1/4 ports and an M12x1.25 rod thread.
| Model | Airtac SC40 Standard Cylinder SC40X275S |
|---|---|
| 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 reliably divert cartons on medium-speed conveyor lines, with the built-in magnet providing end-of-stroke confirmation via a CMSG sensor.
Applies controlled clamping force for small-part assembly fixtures. The adjustable cushion protects the workpiece from impact, while the -S magnet enables precise cycle counting.
Ideal for a 275 mm vertical lift of lightweight totes or components. The double-acting control allows powered return, and the 16 mm rod handles pure axial loads efficiently.
For applications needing more force, consider stepping up to the SC50 series, which provides 982 N of push force at 0.5 MPa. If a shorter, lighter cylinder is sufficient, the SC32 offers 402 N at the same pressure. The 275 mm stroke is within the 1200 mm maximum standard stroke for the 40 bore.
At this stroke length, ensure the load is guided externally if any side forces are present, as a 16 mm rod can bend under lateral load. When replacing, match five points: 40 mm bore, 275 mm stroke, PT1/4 ports, the built-in magnet (-S), and the basic mounting style.
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. The theoretical maximum at 1.0 MPa is 128 kgf.
Yes. The -S suffix in the model code SC40X275S indicates a built-in magnet on the piston. This allows you to clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel's tie-rod slots to detect piston position without additional brackets.
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