The AirTAC Airtac SC40 Standard Cylinder SC40X75LB is a genuine double-acting standard air cylinder with a Ø40mm bore and 75mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X75LB is a double-acting tie-rod cylinder delivering 628 N of push force at 0.5 MPa and up to 1130 N at 0.9 MPa. With a 16 mm diameter piston rod and a 75 mm stroke, it is well-suited for compact linear movements in jigs and fixtures.
This model includes the LB foot mount (F-SC40LB) for secure surface mounting on machine beds. The 21 mm adjustable air cushion at each end decelerates the piston smoothly, reducing end-of-stroke impact and noise.
| Model | Airtac SC40 Standard Cylinder SC40X75LB |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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. |
| ×75 | 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 75 mm stroke provides a clean, short-throw stop for small packages or components on a conveyor line, with the LB foot mount ensuring stable alignment.
628 N of force at 0.5 MPa is ideal for light-duty clamping, holding workpieces during drilling, or pressing bearings into housings.
Use the SC40X75LB to actuate a diverter gate in a chute system. The adjustable cushion protects the mechanism from hard stops at speed.
Choose the SC40 when your application needs around 628 N at standard plant pressure. If you require more force, the SC50 delivers 982 N at the same 0.5 MPa. For a stroke of 75 mm, the 40 mm bore is a rigid choice; side loads are minimal on this short stroke, but always align the rod with the load axis.
To replace an existing cylinder, match five points: 40 mm bore, 75 mm stroke, PT1/4 port thread, LB foot mounting (F-SC40LB), and confirm no magnet is required. The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At 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 reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 cylinder of the same bore and stroke. It will only drop-in replace another AirTAC SC tie-rod cylinder with matching bore, stroke, port thread, and mounting.
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