The AirTAC Airtac SC40 Standard Cylinder SC40X25SH is a genuine double-acting standard air cylinder with a Ø40mm bore and 25mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X25SH is a double-acting pneumatic cylinder with a 40 mm bore and a short 25 mm stroke, ideal for compact clamping, ejecting, or sorting tasks. It produces 628 N of push force at 0.5 MPa and up to 1130 N at 0.9 MPa, driven by a 16 mm diameter piston rod.
This model includes a built-in magnet (-S) for mounting CMSG/DMSG/EMSG sensors directly on the tie-rod barrel, and Viton (FKM) seals (-H) that extend the operating temperature range to 0–150 °C. The body length A is 142 mm, and the standard PT1/4 port supplies filtered air at 0.15–1.0 MPa.
| Model | Airtac SC40 Standard Cylinder SC40X25SH |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 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. |
| ×25 | 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.
Viton seals allow this cylinder to reliably eject small plastic or metal parts from molds and forming tools operating at temperatures up to 150 °C.
The 25 mm stroke and 30-800 mm/s speed range make it perfect for a fast-acting diverter gate on a conveyor line, with the magnetic piston confirming position via a CMSG sensor.
Delivers a firm 628 N clamping force at standard line pressure for holding workpieces in a heated laminating or bonding press, where standard seals would degrade.
Choose the SC40 bore for light-to-medium pneumatic tasks where its 628 N push at 0.5 MPa is sufficient. If you need 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. For this 25 mm stroke, side loading is rarely a concern, but always align the rod with the load axis.
When replacing an existing cylinder, match five points: 40 mm bore, 25 mm stroke, PT1/4 port thread, the built-in magnet (-S) for sensor compatibility, and the Viton seal material (-H) if the application runs at elevated temperatures.
Quick checklist
At 0.7 MPa operating pressure, the push force is 879 N. The theoretical maximum push force at 1.0 MPa is 128 kgf.
Yes. The -S suffix indicates a built-in magnet, so you can directly mount AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors on the cylinder barrel to detect piston position.
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