The AirTAC Airtac SC40 Standard Cylinder SC40X780 is a genuine double-acting standard air cylinder with a Ø40mm bore and 780mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X780 is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa (879 N at 0.7 MPa). Its 40 mm bore houses a 16 mm diameter piston rod with M12x1.25 male threads, and the 780 mm stroke suits medium-reach material transfer or clamping tasks.
This model features a body length A of 142 mm, giving an extended length of approximately 922 mm. Adjustable pneumatic cushioning (21 mm cushion length) decelerates the piston at each end to reduce impact, while the PT1/4 port supplies filtered air. The standard TPU seals operate reliably from -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X780 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 780 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. |
| ×780 | 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 or pulls components along a 780 mm path in automated assembly lines, leveraging 628 N of force at standard plant pressure.
Applies consistent 879 N clamping force at 0.7 MPa for woodworking or light metal fabrication jigs requiring a mid-range stroke.
Operates diverter gates on packaging conveyors, using the 16 mm rod and adjustable cushion for smooth, repeatable end-of-stroke positioning.
Choose the SC40X780 when 628 N at 0.5 MPa meets your load requirement. If you need more force, stepping up to the SC50 bore provides 982 N push at the same pressure. For lighter, faster cycles, the SC32 bore offers 402 N.
For this 780 mm stroke, confirm that side loads are minimal or use an external guide rail. Long unsupported rods can bend under offset loads, so a guided cylinder or linear bearing is recommended for consistent alignment. When replacing an existing cylinder, match bore (40 mm), stroke (780 mm), PT1/4 port thread, basic mount configuration, and the absence of a magnet sensor.
Quick checklist
At 0.7 MPa operating pressure, the push force is 879 N. The maximum theoretical push force at 1.0 MPa is 128 kgf. Always factor in a safety margin for dynamic loads.
It is not recommended for side-loaded applications. The 16 mm rod on a 780 mm stroke is susceptible to bending under offset loads. Use an external guide rail or a guided cylinder to protect the rod bearing and ensure linear motion.
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