The AirTAC Airtac SC40 Standard Cylinder SC40X35LB is a genuine double-acting standard air cylinder with a Ø40mm bore and 35mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X35LB is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa, built for short, precise linear strokes. With a 40 mm bore and a 16 mm diameter piston rod, it provides a compact yet robust solution for clamping, ejecting, or positioning tasks where space is limited.
This model features the standard TPU seal package for reliable operation from -20 to +70 °C and includes the LB foot mounting accessory (F-SC40LB) for secure surface installation. The body length A is 142 mm, resulting in a total extended length of approximately 177 mm for this 35 mm stroke configuration.
| Model | Airtac SC40 Standard Cylinder SC40X35LB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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. |
| ×35 | 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 35 mm stroke and 628 N force are ideal for workpiece clamping in CNC fixtures, providing rapid, repeatable hold-down action without over-travel.
Use the SC40X35LB to eject small parts from a conveyor or die. The LB foot mount allows rigid mounting perpendicular to the material flow.
Directly actuate a quarter-turn valve or diverter gate with this short-stroke cylinder, leveraging the 16 mm rod for robust mechanical linkage.
Select the SC40 when your application requires a force between the smaller SC32 (402 N push) and the larger SC50 (982 N push) at 0.5 MPa. This 35 mm stroke is well within the bore’s maximum standard stroke of 1200 mm, ensuring standard delivery times. For replacement, match the 40 mm bore, 35 mm stroke, PT port thread, and the LB foot mount to guarantee dimensional interchangeability with an existing AirTAC SC40 setup.
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 'LB' suffix in SC40X35LB indicates the cylinder is supplied with the axial foot mount. The accessory part code is F-SC40LB, which bolts directly to the tie-rod ends for surface mounting.
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