The AirTAC Airtac SC40 Standard Cylinder SC40X385STC 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 AirTAC SC40X385STC is a double-acting single-rod pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 40 mm bore and 385 mm stroke make it a versatile mid-range actuator for automated equipment.
This model includes a built-in magnet (S suffix) for mounting CMSG/DMSG/EMSG sensors directly on the barrel, plus a centre trunnion mount (TC suffix) with the TCM1 bracket for pivoting applications. The 16 mm diameter rod and 21 mm adjustable air cushion ensure smooth deceleration, while the PT1/4 port supplies ample flow for speeds up to 800 mm/s.
| Model | Airtac SC40 Standard Cylinder SC40X385STC |
|---|---|
| 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 628 N push force and 385 mm stroke reliably operate diverters, gates, and pallet stops on packaging and material-handling conveyors.
Delivers controlled clamping force for woodworking, welding, and light assembly fixtures, with the centre trunnion mount allowing the cylinder to pivot as the clamp engages.
Suitable for chute controls, bin gates, and sorting mechanisms on farm equipment where a robust, medium-force pneumatic cylinder with sensor feedback is required.
Choose the SC40 bore when your application needs around 628 N of push force at standard plant air pressure. If you require more force, step up to the SC50 which provides 982 N at 0.5 MPa; for a lighter, more compact solution, the SC32 delivers 402 N. The 385 mm stroke is within the 1200 mm maximum standard stroke for this bore.
For strokes beyond 300 mm, consider external guides or a guided cylinder if the load applies any side force. To replace an existing cylinder, match five key points: 40 mm bore, 385 mm stroke, PT1/4 port thread, centre trunnion mounting (F-SC40TC), and the built-in magnet for sensor compatibility.
Quick checklist
At 0.5 MPa operating pressure, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
Yes, the 'S' in the model code indicates a built-in magnet, allowing you to attach CMSG, DMSG, or EMSG reed or solid-state sensors directly to the cylinder barrel. The 'TC' suffix means it comes with a centre trunnion mount and the TCM1 bracket (order code F-SC40TC), designed for applications where the cylinder needs to pivot during operation.
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