The AirTAC Airtac SC40 Standard Cylinder SC40X400SN is a genuine double-acting standard air cylinder with a Ø40mm bore and 400mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X400SN is a tie-rod double-acting cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). With a 400 mm stroke and a 16 mm diameter piston rod, it suits medium-reach clamping, pressing, and material-transfer tasks where sensor feedback is required.
This model includes a built-in magnet (-S suffix) so CMSG/DMSG/EMSG reed or solid-state sensors can be mounted directly on the barrel for end-of-stroke detection. The NBR seal (-N suffix) provides reliable sealing for standard industrial air, and the PT1/4 ports connect with common pneumatic fittings. The adjustable air cushion at each end absorbs 21 mm of stroke-end energy, reducing impact noise and wear.
| Model | Airtac SC40 Standard Cylinder SC40X400SN |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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. |
| ×400 | 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 built-in magnet allows direct mounting of reed or solid-state sensors to confirm clamp position, making the SC40X400SN ideal for automated welding or assembly fixtures requiring cycle verification.
With 400 mm of stroke and 628 N of push force, this cylinder reliably pushes components onto conveyors or diverts them in sorting lines, with sensor feedback ensuring each actuation is complete.
Delivering up to 1130 N at 0.9 MPa, the SC40X400SN handles light press-fit assembly, riveting, or gasket compression where consistent force and stroke-end confirmation are critical.
Choose the SC40 when your application needs roughly 628 N at 0.5 MPa. If you require more force, stepping up to the SC50 delivers 982 N at the same pressure. For lighter, faster cycles, the SC32 provides 402 N. The 400 mm stroke on a 16 mm rod is well within the standard range, but if the load applies any side force, add an external guide or switch to a guided cylinder to protect the rod bearing from bending stress.
To ensure a drop-in replacement, match five points: 40 mm bore, 400 mm stroke, PT1/4 port thread, the built-in magnet for sensors, and the NBR seal material. This cylinder is shorter than an ISO 15552 profile and is not dimensionally interchangeable with that standard.
Quick checklist
At 0.5 MPa the push force is 628 N and pull force is 528 N. At 0.7 MPa push force increases to 879 N, and at the maximum operating pressure of 0.9 MPa it 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 ISO 15552 profiles. Mounting accessories are specific to the SC series, using part codes like F-SC40LB for a foot mount. Use only genuine AirTAC SC accessories to ensure correct fit and alignment.
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