The AirTAC Airtac SC40 Standard Cylinder SC40X5S is a genuine double-acting standard air cylinder with a Ø40mm bore and 5mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X5S is a compact double-acting pneumatic cylinder with a 40 mm bore and a very short 5 mm stroke, delivering 628 N of push force at 0.5 MPa. Its built-in magnet (-S suffix) allows CMSG/DMSG/EMSG sensors to mount directly on the tie-rod barrel for precise end-of-stroke detection, making it ideal for ejector or clamping functions where space is tight.
This model uses a 16 mm diameter piston rod with an M12x1.25 rod thread and PT1/4 ports. The adjustable air cushion (21 mm length) decelerates the piston smoothly despite the short stroke, while the TPU seals provide reliable operation from -20 to +70 °C.
| Model | Airtac SC40 Standard Cylinder SC40X5S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 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. |
| ×5 | 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 5 mm stroke with magnetic sensing is perfect for ejecting small parts from fixtures or dies, confirming retraction before the next cycle.
Apply 628 N of clamping force in a tight envelope. The built-in magnet enables sensor feedback to verify the clamp is fully engaged.
Use the short, fast stroke to flip a small diverter gate on a conveyor line, with magnetic sensors confirming gate position.
For applications needing more force, the 50 mm bore SC50 series offers 982 N at 0.5 MPa. The 5 mm stroke is well within the 1200 mm maximum standard stroke for this bore. To ensure a correct replacement, match five points: 40 mm bore, 5 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the basic mounting configuration.
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.
Yes. The -S suffix indicates a built-in magnet, so you can clamp CMSG (reed) or DMSG/EMSG (solid-state) sensors directly onto the barrel to detect piston position.
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