The AirTAC Airtac SC40 Standard Cylinder SC40X790S is a genuine double-acting standard air cylinder with a Ø40mm bore and 790mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X790S is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa and up to 1130 N at 0.9 MPa. With a 40 mm bore, 16 mm piston rod, and a 790 mm stroke, it suits medium-force linear actuation tasks that require position feedback.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the barrel for non-contact end-of-stroke or mid-stroke sensing. The cylinder uses PT1/4 ports, adjustable pneumatic cushioning (21 mm cushion length), and TPU seals for standard operation from -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X790S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 790 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. |
| ×790 | 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.
Actuates diverter gates on conveyor lines. The 790 mm stroke provides ample travel for wide chutes, and the built-in magnet enables sensor confirmation of gate position.
Pushes components into fixtures or nests. The 628 N force at 0.5 MPa is well-suited for pressing bearings or bushings, while the -S magnet allows precise stroke-end detection.
Raises or stops pallets at transfer stations. The tie-rod design handles repetitive impact, and the sensor-ready barrel integrates easily with warehouse control systems.
Choose the SC40 bore when your application needs around 628 N of thrust at standard plant pressure. If you require more force, stepping up to the SC50 bore provides 982 N at 0.5 MPa. For strokes of 790 mm, verify that side loads are minimal or use an external guide rail, as the 16 mm rod can be subject to bending under off-axis forces. When replacing an existing cylinder, match five points: 40 mm bore, 790 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the basic (no bracket) mounting configuration.
Quick checklist
At 0.5 MPa (approx. 5 bar), the cylinder produces 628 N extending (push) and 528 N retracting (pull). 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 SC40X790S indicates a built-in magnet on the piston. This allows AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors to be clamped directly onto the barrel tie-rods for contactless position sensing.
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