The AirTAC Airtac SC40 Standard Cylinder SC40X15H is a genuine double-acting standard air cylinder with a Ø40mm bore and 15mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X15H is a compact-stroke tie-rod cylinder built for hot environments, using Viton (FKM) seals that shift the operating temperature range to 0–150 °C. With a 40 mm bore and 15 mm stroke, it delivers 628 N of push force at 0.5 MPa, making it ideal for short ejection or clamping tasks in high-temperature zones.
This model features a 16 mm diameter piston rod with M12x1.25 threads and PT1/4 ports. The body length A is 142 mm, keeping the overall footprint small. The adjustable air cushion (21 mm length) decelerates the piston smoothly, protecting end caps during rapid cycling in demanding thermal conditions.
| Model | Airtac SC40 Standard Cylinder SC40X15H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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. |
| ×15 | 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 the SC40X15H to reliably eject parts from heated platens or molds where ambient temperatures exceed 70 °C, maintaining seal integrity and consistent cycle times.
Delivers 628 N of clamping force at 0.5 MPa for holding fixtures in ovens or drying tunnels, with a short 15 mm stroke that minimizes cycle time and air consumption.
Used in environmental test chambers to actuate mechanical linkages during hot-soak tests, where standard TPU seals would degrade, the Viton seals ensure long service life.
For applications needing slightly more force in the same compact form, stepping up to the 50 mm bore provides 982 N of push at 0.5 MPa. If a lower force is acceptable and space is tighter, the 32 mm bore offers 402 N. Always ensure the cylinder is rigidly guided if side loads are present, even on short strokes.
To guarantee a drop-in replacement, match five points: 40 mm bore, 15 mm stroke, PT1/4 port thread, basic mount (no brackets), and the Viton seal designation (H). This SC model is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At 0.7 MPa operating pressure, the SC40X15H generates 879 N of push force and 528 N of pull force. The maximum theoretical force at 1.0 MPa is 128 kgf, though the operating limit is 0.9 MPa (1130 N push).
Yes, the SC40X15H is a direct dimensional replacement for the standard SC40X15. The only difference is the Viton (FKM) seal material, which extends the operating temperature range from -20–70 °C to 0–150 °C, making it suitable for high-temperature applications where the standard TPU seal would fail.
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