The AirTAC Airtac SC40 Standard Cylinder SC40X275 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 SC40X275 is a double-acting tie-rod cylinder delivering a push force of 628 N at 0.5 MPa (879 N at 0.7 MPa). Its 40 mm bore and 275 mm stroke suit medium-force linear tasks where a compact body length is needed—the body measures 142 mm, giving an extended length of approximately 417 mm.
This model uses a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. An adjustable air cushion (21 mm) decelerates the piston at stroke end to reduce impact. The standard TPU seals operate reliably from -20 to +70 °C with filtered air.
| Model | Airtac SC40 Standard Cylinder SC40X275 |
|---|---|
| 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.
Pushes components between conveyor lanes or into a staging nest with 628 N of force at 0.5 MPa, ideal for repetitive linear indexing.
Applies consistent clamping pressure in machining or welding jigs. The 275 mm stroke provides ample clearance for part loading and unloading.
Operates a diverter flap on a packaging line. The adjustable cushion ensures quiet, low-impact end-of-stroke motion for high-cycle sorting tasks.
Choose the SC40X275 when your application needs around 628 N of push force at standard shop air. If you require more force, step up to the SC50 bore (982 N push at 0.5 MPa); for a lighter, more compact solution, the SC32 provides 402 N. Always match the bore, 275 mm stroke, PT1/4 port thread, and basic mounting when replacing an existing unit.
At 275 mm, the stroke is moderate, but if your load applies any side force, guide the rod externally or consider a guided cylinder. The 16 mm rod is robust for axial loads but will bend if subjected to unconstrained lateral forces.
Quick checklist
At 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, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC series is a tie-rod cylinder and is shorter than an ISO 15552 cylinder, so it is not dimensionally interchangeable. Use it to replace another AirTAC SC40 cylinder with matching bore, stroke, PT1/4 ports, and basic mounting.
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