The AirTAC Airtac SC40 Standard Cylinder SC40X400H 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 SC40X400H is a double-acting AirTAC SC tie-rod cylinder with a 40 mm bore and 400 mm stroke, fitted with high-temperature Viton (FKM) seals for reliable operation from 0 to +150 °C. This model delivers a push force of 628 N at 0.5 MPa and reaches 1130 N at the maximum operating pressure of 0.9 MPa, driven by a 16 mm diameter piston rod.
The 400 mm stroke sits well within the 1200 mm maximum standard stroke for this bore, and the cylinder body length A is 142 mm, giving a total extended length of approximately 542 mm. An adjustable air cushion at each end decelerates the 16 mm rod smoothly, and the PT1/4 port supplies filtered compressed air. This genuine AirTAC actuator suits hot-environment automation where standard seals would degrade.
| Model | Airtac SC40 Standard Cylinder SC40X400H |
|---|---|
| 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.
With Viton seals rated to +150°C, the SC40X400H handles clamping, pressing, or ejecting in ovens, autoclaves, and foundry equipment where standard NBR or TPU seals would fail.
The 400 mm stroke and 16 mm rod provide ample reach for diverting hot parts or materials on conveyor lines in heat-treatment or glass-processing plants, maintaining seal integrity at elevated ambient temperatures.
Delivering 1130 N of push force at 0.9 MPa, this cylinder reliably actuates mould slides or core pulls in injection moulding tools where the mould temperature demands Viton-sealed pneumatics.
Choose the SC40 bore for push forces around 628 N at 0.5 MPa. If your load exceeds this, stepping up to the SC50 bore provides 982 N at the same pressure. For lighter, faster moves, the SC32 bore delivers 402 N. This 400 mm stroke model requires attention to side loads; an unsupported 16 mm rod at full extension can bend under off-axis force—add an external linear guide or switch to a guided cylinder if side loading is present.
For a direct replacement, match five points: 40 mm bore, 400 mm stroke, PT1/4 port thread, the basic (no bracket) mounting configuration, and the Viton seal designation (H). The SC is a tie-rod cylinder and is not dimensionally interchangeable with ISO 15552 profile cylinders.
Quick checklist
At 0.7 MPa operating pressure, the SC40 bore generates 879 N of push force and 528 N of pull force on the retract stroke. The maximum push force at 0.9 MPa is 1130 N.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than an ISO 15552 profile cylinder (body length A is 142 mm for the SC40). It is not dimensionally interchangeable with ISO 15552 mounts or footprints. Use it to replace another AirTAC SC40 tie-rod cylinder with matching stroke, port, and mounting.
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