The AirTAC Airtac SC40 Standard Cylinder SC40X20STC is a genuine double-acting standard air cylinder with a Ø40mm bore and 20mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X20STC is a compact double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa from its 40 mm bore. With a short 20 mm stroke, it is ideal for clamping, ejecting, or sorting tasks where space is tight and cycle speed matters.
This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors and a centre trunnion pivot (F-SC40TC bracket included) for swinging loads. The 16 mm rod and PT1/4 ports suit standard pneumatic circuits, and the adjustable air cushion trims end-of-stroke deceleration.
| Model | Airtac SC40 Standard Cylinder SC40X20STC |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 20 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. |
| ×20 | 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.
Short 20 mm stroke provides rapid, repeatable clamping force for CNC fixtures and welding jigs.
Compact body length fits tight conveyor gates, diverting small parts with 628 N of push at standard line pressure.
Centre trunnion mount allows the cylinder to swing, ideal for actuating pivoting levers and mechanical linkages.
For higher force, step up to the 50 mm bore (982 N at 0.5 MPa). For a basic fixed mount, choose the SC40X20-S. When replacing, match bore, 20 mm stroke, PT1/4 ports, the -S magnet, and the TC trunnion mount to ensure drop-in fitment.
Quick checklist
At 0.5 MPa, it pushes with 628 N and pulls with 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N.
Yes, the SC40X20STC includes the TCM1 trunnion bracket. The complete mounting kit part code is F-SC40TC, supplied together with the cylinder.
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