The AirTAC Airtac SC40 Standard Cylinder SC40X325 is a genuine double-acting standard air cylinder with a Ø40mm bore and 325mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X325 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, pairing a 40 mm bore with a 325 mm stroke. At 0.5 MPa it provides 628 N of push force (879 N at 0.7 MPa), driven by a 16 mm diameter piston rod with M12x1.25 threads.
This model features a 142 mm body length (A dimension) and 21 mm of adjustable air cushion at each end to decelerate the load smoothly. The combination of a mid-range 40 mm bore and a 325 mm stroke suits applications needing moderate force over a longer travel distance, such as material transfer or lifting mechanisms.
| Model | Airtac SC40 Standard Cylinder SC40X325 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 325 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. |
| ×325 | 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.
Moves components between conveyor lanes or workstations with a 325 mm reach, using the 628 N push force to shift moderate payloads reliably.
Applies consistent 628 N clamping pressure in welding or assembly jigs, holding parts securely during processing over a defined 325 mm stroke.
Ejects filled containers or diverts packages on gravity rollers, leveraging the 40 mm bore's force to handle repetitive pushing tasks in logistics.
For higher force requirements, stepping up to the 50 mm bore SC50 series provides 982 N of push force at 0.5 MPa. If space is constrained and less force is acceptable, the 32 mm bore SC32 series delivers 402 N at the same pressure. Always confirm the 325 mm stroke is within the 1200 mm maximum standard stroke for this bore.
At 325 mm of stroke, ensure the rod is properly guided if any side load is present; an unsupported 16 mm rod can bend under off-axis forces. For side-loaded applications, consider an external linear guide or switch to a guided cylinder. When replacing an existing unit, match bore, stroke, PT port thread, basic mounting, and confirm whether a magnet (-S suffix) is needed for sensor compatibility.
Quick checklist
At 0.7 MPa (7 bar) operating pressure, the SC40X325 produces 879 Newtons of push force. The maximum push force at the 0.9 MPa operating limit is 1130 N.
This specific model code SC40X325 does not include the -S magnet suffix, so it is supplied without a built-in piston magnet. To use CMSG or DMSG sensors, order the SC40X325-S variant which includes a magnet ring, or check if an external switch rail can be fitted.
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