The AirTAC Airtac SC40 Standard Cylinder SC40X950S is a genuine double-acting standard air cylinder with a Ø40mm bore and 950mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X950S is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, combining a 40 mm bore with a long 950 mm stroke. At 0.5 MPa operating pressure, it generates a push force of 628 N and a pull force of 528 N, making it suitable for medium-duty linear transfer and material handling tasks that require extended reach.
This model includes the -S suffix, indicating a built-in magnet on the piston. This allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the barrel for precise, non-contact end-of-stroke or mid-stroke position feedback. The rod diameter is 16 mm with an M12x1.25 thread, and the standard PT1/4 port supplies filtered air for reliable cycling.
| Model | Airtac SC40 Standard Cylinder SC40X950S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 950 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. |
| ×950 | 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 950 mm between conveyor lines or workstations. The built-in magnet enables sensor-based interlocking to confirm full extension and retraction before the next cycle starts.
Operates diverter gates or flaps on packaging and logistics lines. The 628 N push force at 0.5 MPa is ample for directing medium-weight parcels, with sensors verifying gate position for system control.
Slides lightweight guarding, shields, or access panels on CNC machines. The extended 950 mm stroke provides full clearance, while magnetic switches confirm safe open or closed states.
For applications requiring more force, stepping up to the 50 mm bore SC50 series provides 982 N of push force at the same 0.5 MPa pressure. When specifying a replacement, ensure an exact match across five critical points: 40 mm bore, 950 mm stroke, PT1/4 port thread, the built-in magnet (-S) for sensor compatibility, and the basic tie-rod mounting configuration.
With a stroke of 950 mm, the 16 mm diameter rod is susceptible to bending under side loads. It is essential to ensure the load is guided externally and the cylinder is used for pure axial push-pull motion. For applications with inherent side forces, consider adding an external linear guide or switching to a guided cylinder assembly to protect the rod bearings and seals.
Quick checklist
At the standard operating pressure of 0.5 MPa, the cylinder delivers a push force of 628 N and a pull force of 528 N. At the maximum operating pressure of 0.9 MPa, the push force increases to 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
Yes. The -S suffix in the model code confirms a factory-installed magnetic piston. You can directly clamp AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors onto the tie-rod barrel to detect piston position without additional brackets.
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