The AirTAC Airtac SC40 Standard Cylinder SC40X140SCB is a genuine double-acting standard air cylinder with a Ø40mm bore and 140mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X140SCB is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). With a 140 mm stroke and a 16 mm diameter piston rod, it suits medium-duty linear tasks where a pivoting rear mount is required.
This model includes a built-in magnet (-S) for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke detection. The CB suffix denotes a rear double clevis mount (fork), supplied as accessory F-SC40CB, allowing the cylinder body to pivot during operation. The standard PT1/4 port and TPU seals provide reliable performance from -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X140SCB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 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. |
| ×140 | 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 rear double clevis mount allows the SC40X140SCB to pivot freely, making it ideal for actuating linkages on agricultural machinery like planter row units or chute diverters.
With sensor-confirmed positioning via the built-in magnet, this cylinder reliably operates diverter gates on packaging conveyors, ensuring product is sorted correctly at each cycle.
Delivering 1130 N of clamping force at 0.9 MPa, it secures parts in welding or assembly fixtures. The pivoting clevis mount accommodates slight angular misalignments during clamping.
Choose the SC40 bore for push forces around 628 N at 0.5 MPa. If your application needs more force, step up to the SC50 bore (982 N at 0.5 MPa); for a lighter, more compact solution, the SC32 bore offers 402 N. The 140 mm stroke is within the 1200 mm maximum standard stroke for this bore.
For replacement, match five key points: 40 mm bore, 140 mm stroke, PT1/4 port thread, the CB rear double clevis mounting, and the -S magnet for sensor compatibility. This ensures a direct dimensional and functional swap for an existing AirTAC SC tie-rod cylinder.
Quick checklist
At the standard operating pressure of 0.5 MPa, 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 increases to 1130 N.
Yes. The -S suffix in the model code SC40X140SCB indicates a built-in magnet is installed on the piston. This allows you to clamp compatible AirTAC CMSG, DMSG, or EMSG reed or solid-state sensors directly onto the cylinder barrel for contactless position sensing.
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