The AirTAC Airtac SC40 Standard Cylinder SC40X245S is a genuine double-acting standard air cylinder with a Ø40mm bore and 245mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X245S delivers 628 N of push force at 0.5 MPa and 1130 N at the maximum operating pressure of 0.9 MPa, making it a solid mid-range actuator for automated workflows. Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration, while the built-in magnet allows direct mounting of CMSG, DMSG, or EMSG sensors for precise position feedback.
With a 245 mm stroke and a compact body length A of 142 mm, this genuine AirTAC tie-rod cylinder fits into machines where space is limited but reliable double-acting performance is required. The PT1/4 port and M12x1.25 rod thread ensure straightforward pneumatic connections, and the TPU seals cover a standard temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X245S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 245 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. |
| ×245 | 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 245 mm stroke and sensor-ready magnet make this cylinder ideal for pushing cartons onto a side conveyor, with CMSG switches confirming extend and retract positions at high cycle rates.
Delivering 628 N at 0.5 MPa, the SC40X245S applies consistent clamping force for gluing or ultrasonic welding fixtures, with the adjustable cushion protecting delicate components from impact shock.
Use the 245 mm stroke to open and close a material-handling gate. The integrated magnet lets a DMSG solid-state sensor provide reliable gate-position status to the central PLC.
For applications needing more force, stepping up to the SC50 bore provides 982 N of push at 0.5 MPa. If a shorter overall length is critical, the SC32 bore offers 402 N at 0.5 MPa but limits the maximum standard stroke to 1000 mm. The 245 mm stroke on this 40 mm bore is well within the 1200 mm maximum standard stroke, so no special order lead time applies.
To guarantee a correct replacement, match five key points: 40 mm bore, 245 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic mounting style. This SC cylinder is a tie-rod design and is not dimensionally interchangeable with ISO 15552 profile cylinders.
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, the push force reaches 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
Yes. The -S suffix indicates a built-in magnet, so AirTAC CMSG (reed) and DMSG/EMSG (solid-state) sensors can be clamped directly onto the barrel for non-contact position sensing.
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