The AirTAC Airtac SC40 Standard Cylinder SC40X338 is a genuine double-acting standard air cylinder with a Ø40mm bore and 338mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X338 is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 338 mm stroke suit medium-duty linear tasks where a compact tie-rod design is preferred over bulkier ISO 15552 profiles.
This model uses a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. The adjustable air cushion (21 mm length) decelerates the piston smoothly at end-of-stroke, reducing impact noise. The body length A is 142 mm, giving a total extended length of approximately 480 mm.
| Model | Airtac SC40 Standard Cylinder SC40X338 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 338 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. |
| ×338 | 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 338 mm stroke pushes cartons off a conveyor line with 628 N of force at standard plant pressure, ideal for medium-weight sorting gates.
Delivers consistent 1130 N clamping force at 0.9 MPa for woodworking or light metal fabrication jigs, with adjustable cushion to protect the fixture.
Extends 338 mm to tilt small parts bins. The tie-rod construction handles repetitive cycling in material handling stations.
Choose the SC40X338 for strokes up to 338 mm where the 628 N push force at 0.5 MPa is sufficient. If your load requires more force, step up to the SC50 bore (982 N at 0.5 MPa). For lighter, faster cycling, the SC32 bore (402 N) may be a better fit. This 338 mm stroke is within the 1200 mm maximum standard stroke for the 40 mm bore.
For strokes of 300 mm or more, side loads can bend the 16 mm rod. If the load is not guided externally, add an external guide rail or consider a guided cylinder to protect the rod bearing and seals. When replacing an existing cylinder, match bore, stroke, PT1/4 port thread, basic mounting, and confirm if a magnet (-S) is needed for sensors.
Quick checklist
At 0.5 MPa, push force is 628 N and pull force is 528 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 cylinder, so mounting dimensions and body length differ. It is a direct replacement only for another AirTAC SC40 cylinder with matching bore, stroke, PT1/4 ports, and basic mounting.
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