The AirTAC SC40 Standard Cylinder SC40X50N is a genuine double-acting standard air cylinder with a Ø40mm bore and 50mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X50N is a compact double-acting tie-rod cylinder with a 40 mm bore and 50 mm standard stroke, fitted with NBR (nitrile) seals for reliable performance in general industrial air circuits. At 0.5 MPa it generates 628 N pushing force and 528 N on the pull stroke, making it a capable mid-range actuator for clamping and pressing tasks.
This model uses a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. The adjustable air cushion at each end (21 mm length) decelerates the piston smoothly, while the 142 mm body length keeps the envelope compact. Its tie-rod construction allows straightforward maintenance and seal replacement.
| Model | Airtac SC40 Standard Cylinder SC40X50N |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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. |
| ×50 | 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 50 mm stroke and 628 N push force are ideal for stopping or diverting small packages and components on belt conveyors, providing a crisp, repeatable linear motion.
Delivers controlled force for pressing bushings, bearings, or pins into housings in bench-top assembly fixtures, where the NBR seals handle standard shop air lubrication.
Use the SC40X50N to actuate toggle clamps or direct-clamp workpieces during machining or welding, taking advantage of the cylinder's tie-rod rigidity and adjustable cushioning.
Choose the SC40 bore when 628 N at 0.5 MPa meets the load requirement; if you need more force, step up to the SC50 (982 N at 0.5 MPa). For lighter, faster applications the SC32 (402 N) may be a better fit. This 50 mm stroke is a standard length and is normally stocked.
When replacing an existing cylinder, match five points: 40 mm bore, 50 mm stroke, PT1/4 port thread, NBR seal material, and the basic (no bracket) mounting style. If you later need position sensing, the -S magnet option allows CMSG/DMSG sensors to clamp directly onto the tie-rod barrel.
Quick checklist
At the standard operating pressure of 0.5 MPa, 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.
Yes. This basic model ships without a bracket, but you can order AirTAC SC40 mounting accessories separately, such as the LB foot mount (F-SC40LB), FA/FB flanges, or CA/CB clevises. The tie-rod body accepts all standard SC-series mounts.
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