The AirTAC Airtac SC40 Standard Cylinder SC40X385 is a genuine double-acting standard air cylinder with a Ø40mm bore and 385mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X385 is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, pairing a 40 mm bore with a 385 mm stroke. It generates a push force of 628 N at 0.5 MPa and 1130 N at the maximum operating pressure of 0.9 MPa, driven by a 16 mm diameter piston rod.
This model features a body length A of 142 mm, resulting in a total extended length of approximately 527 mm. The adjustable pneumatic cushion (21 mm length) decelerates the piston near stroke end to reduce impact, while the standard PT1/4 port and M12x1.25 rod thread ensure straightforward pneumatic connections.
| Model | Airtac SC40 Standard Cylinder SC40X385 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 385 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. |
| ×385 | 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 385 mm stroke and 628 N push force reliably actuate diverter gates on medium-speed conveyor lines, sorting cartons by size or destination.
Delivers consistent 1130 N clamping force at 0.9 MPa for woodworking or light metal fabrication jigs, holding workpieces securely during machining.
Operates sliding gates on seed or grain hoppers, providing the 385 mm travel needed to fully open or close material flow paths in agricultural equipment.
Choose the SC40X385 for applications needing around 628 N of force at standard plant pressure. If your load requires more thrust, stepping up to the 50 mm bore (SC50) provides 982 N at the same 0.5 MPa. For lighter, faster cycles, the 32 mm bore (SC32) offers 402 N.
With a 385 mm stroke, the 16 mm rod is well-supported for axial loads, but any significant side loading requires an external guide or linear rail to prevent rod bending and premature seal wear. When replacing an existing cylinder, match five points exactly: 40 mm bore, 385 mm stroke, PT1/4 port thread, basic (no bracket) mounting, and the absence of a built-in magnet.
Quick checklist
At 0.5 MPa, the cylinder provides 628 N pushing and 528 N pulling. 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.
No. The SC40X385 is a double-acting cylinder and does not lock or hold position when pressure is exhausted or the valve is centered. The piston will drift under load. For load holding, you must add an external rod brake, a mechanical lock, or a pilot-operated check valve in the circuit.
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