The AirTAC Airtac SC40 Standard Cylinder SC40X280SH is a genuine double-acting standard air cylinder with a Ø40mm bore and 280mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X280SH is a double-acting pneumatic cylinder delivering 628 N of push force at 0.5 MPa, scaling to 1130 N at 0.9 MPa. With a 40 mm bore and 280 mm stroke, it suits medium-duty linear tasks where a compact footprint is essential. The built-in magnet (S suffix) lets you clamp CMSG/DMSG/EMSG sensors directly onto the tie-rod barrel for reliable end-of-stroke detection.
This model is assembled with Viton (FKM) seals (H suffix), shifting the operating temperature range to 0–150 °C for hot or chemically aggressive environments. The 16 mm diameter piston rod and 21 mm adjustable air cushion provide smooth deceleration, while the PT1/4 port thread and M12x1.25 rod thread keep connections standard. Total extended body length is approximately 422 mm (142 mm body + 280 mm stroke).
| Model | Airtac SC40 Standard Cylinder SC40X280SH |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 280 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. |
| ×280 | 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 Viton seals withstand 0–150 °C, making this cylinder ideal for autoclave door mechanisms, drying ovens, or foundry tooling where standard seals would degrade.
The built-in magnet enables CMSG/DMSG sensors to confirm clamp position. Use it in automated CNC fixtures or welding jigs requiring closed-loop confirmation at 280 mm stroke.
With 1130 N of force at 0.9 MPa, it ejects hot parts from conveyor lines. The adjustable cushion absorbs impact energy, protecting the cylinder at high cycle rates.
Choose the SC40 when the 32 mm bore's 402 N (at 0.5 MPa) is marginal; if you need more force, step up to the SC50 which provides 982 N at the same pressure. For this 280 mm stroke, ensure the rod is not subjected to side loading—the 16 mm rod can bend under off-axis forces. If your application imposes lateral loads, pair the cylinder with an external guide rail or switch to a guided cylinder unit.
For a direct replacement, match five points: 40 mm bore, 280 mm stroke, PT1/4 port thread, the built-in magnet (-S), and the Viton seal material. This is a tie-rod cylinder, not an ISO 15552 profile, so dimensional interchangeability is limited to another AirTAC SC40 of the same configuration.
Quick checklist
At 0.5 MPa the cylinder pushes with 628 N and pulls with 528 N. If your system runs at 0.7 MPa, push force increases to 879 N. The maximum operating force at 0.9 MPa is 1130 N.
No. The SC series is a tie-rod cylinder with a shorter body length (142 mm for the 40 bore) than an equivalent ISO 15552 profile. It is not dimensionally interchangeable. Replace only with another AirTAC SC40 tie-rod cylinder matching the 280 mm stroke, PT1/4 ports, magnet, and Viton seals.
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