The AirTAC SC40 Standard Cylinder SC40X25S 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 SC40X25S is a compact-stroke single-rod tie-rod cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 25 mm stroke suits short clamping, ejecting, and positioning tasks where space is tight but reliable double-acting air power is required.
The -S suffix equips this model with a built-in magnet, allowing CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the barrel for precise end-of-stroke or mid-stroke position feedback. The 16 mm diameter rod and PT1/4 ports keep flow rates high for fast cycling.
| Model | Airtac SC40 Standard Cylinder SC40X25S |
|---|---|
| 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.
The 25 mm stroke and 628 N force at 0.5 MPa make it ideal for compact pneumatic clamps and fixtures on CNC workholding stations.
Quickly ejects small parts from conveyors or assembly nests. The built-in magnet provides sensor confirmation of full retraction before the next cycle.
With the -S magnet, mount CMSG reed switches to verify end-of-stroke position in automated pick-and-place or sorting mechanisms.
For applications needing more force, step up to the SC50 bore (982 N at 0.5 MPa). If a shorter stroke is needed, the SC40X25S is already at the practical minimum for this bore. When replacing an existing cylinder, match five points: 40 mm bore, 25 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the basic mounting style.
Quick checklist
At 0.5 MPa it delivers 628 N pushing and 528 N pulling. At the maximum operating pressure of 0.9 MPa, 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 without external brackets.
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