The AirTAC Airtac SC40 Standard Cylinder SC40X925 is a genuine double-acting standard air cylinder with a Ø40mm bore and 925mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X925 is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa, scaling up to 1130 N at the maximum operating pressure of 0.9 MPa. With a 16 mm diameter piston rod and a 925 mm stroke, this model is well-suited for long-reach material transfer or sorting gates where the extended length approaches the bore's maximum standard limit of 1200 mm.
This cylinder features a compact body length of 142 mm (A dimension) plus stroke, resulting in a total extended length of approximately 1067 mm. The adjustable pneumatic cushion at each end decelerates the piston smoothly over 21 mm, reducing end-of-stroke impact. It uses PT1/4 ports and an M12x1.25 rod thread, operating reliably on filtered air within a standard temperature range of -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X925 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 925 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. |
| ×925 | 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 925 mm stroke pushes components across wide conveyor gaps or between parallel lines, using 628 N of force at standard plant pressure.
Operates tall diverter gates in logistics sortation systems, where the extended length reaches the pivot point without complex linkages.
Moves a dispensing head along a long linear axis, providing consistent 0.5 MPa thrust for smooth, controlled adhesive bead application.
For applications needing slightly less force, the 32 mm bore SC32 series provides 402 N at 0.5 MPa. If higher force is required, stepping up to the 50 mm bore yields 982 N at the same pressure. The SC40X925 is a standard-stroke model within the 1200 mm maximum for this bore.
At a 925 mm stroke, the slender 16 mm rod is susceptible to bending under side loads. Ensure the load is guided externally or consider an external guide assembly to protect the rod bearings and extend seal life. When replacing an existing cylinder, match five key points: 40 mm bore, 925 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and the absence of a built-in magnet.
Quick checklist
At 0.7 MPa operating pressure, the theoretical push force is 879 N. The pull force on the retract stroke is lower due to the rod area, measuring 528 N at 0.5 MPa.
Not directly. This specific model code lacks the '-S' magnet suffix, meaning the piston does not include a built-in magnet. To use CMSG or DMSG sensors, order the SC40X925-S variant, which has a magnetized piston ring for sensor actuation.
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