The AirTAC Airtac SC40 Standard Cylinder SC40X375S is a genuine double-acting standard air cylinder with a Ø40mm bore and 375mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X375S is a double-acting single-rod pneumatic cylinder delivering 628 N push and 528 N pull at 0.5 MPa (1130 N push at 0.9 MPa). Its 40 mm bore and 375 mm stroke suit medium-force linear tasks where sensor feedback is required—the built-in magnet lets CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for end-of-stroke or mid-position detection.
This model uses a 16 mm diameter piston rod with M12x1.25 male thread, PT1/4 ports, and a 21 mm adjustable air cushion at each end to decelerate the piston quietly. The body length A is 142 mm, giving a total extended length of approximately 517 mm. TPU/NBR seals cover -20 to +70 °C with filtered air at 0.15–1.0 MPa, and the tie-rod construction keeps the cylinder shorter than an equivalent ISO 15552 profile.
| Model | Airtac SC40 Standard Cylinder SC40X375S |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 375 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. |
| ×375 | 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 375 mm stroke pushes packages off a belt, while the built-in magnet triggers CMSG sensors to confirm extend/retract position for the PLC—no external brackets needed.
628 N at 0.5 MPa holds workpieces firmly in CNC fixtures. The -S magnet enables mid-stroke sensing to verify the clamp has engaged before the spindle starts.
Operates a 375 mm travel safety gate or pallet stop in low-clearance areas. The tie-rod design fits where an ISO 15552 cylinder would be too long, and sensor feedback confirms gate status.
For higher force, step up to the SC50 (982 N push at 0.5 MPa); for lighter, faster actuation the SC32 (402 N push) may suffice. At 375 mm stroke the 16 mm rod is well-supported inside the barrel, but if the load applies any side force or the rod is guided externally, confirm the bearing bending moment stays within limits—long unsupported strokes can cause rod deflection and seal wear.
When replacing an existing cylinder, match five points: 40 mm bore, 375 mm stroke, PT1/4 port thread, the built-in magnet (-S suffix), and the basic mount (no bracket). This SC40X375S is a direct replacement for another AirTAC SC40X375S or a tie-rod cylinder with identical port, magnet, and mounting configuration.
Quick checklist
At 0.5 MPa the cylinder provides 628 N extending (push) and 528 N retracting (pull). At the maximum operating pressure of 0.9 MPa, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf. All figures assume standard double-acting operation with filtered air.
Yes. The -S suffix means a magnet is built into the piston, so AirTAC CMSG (reed) or DMSG/EMSG (solid-state) sensors clip directly onto the tie-rod barrel. No additional magnet ring or bracket is required—just order the sensor separately and snap it on.
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