The AirTAC Airtac SC40 Standard Cylinder SC40X120H is a genuine double-acting standard air cylinder with a Ø40mm bore and 120mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X120H is a double-acting pneumatic cylinder engineered for high-temperature duty, using Viton (FKM) seals to operate reliably from 0 to +150 °C. With a 40 mm bore and 120 mm stroke, it produces 628 N of push force and 528 N of pull force at 0.5 MPa, making it a capable actuator for hot-environment automation.
This model features a 16 mm diameter piston rod with M12x1.25 male threads and a 21 mm adjustable air cushion at each end for smooth deceleration. The body length is 142 mm, giving a total extended length of approximately 262 mm. PT1/4 ports supply the filtered air, and the tie-rod construction keeps the cylinder shorter than an equivalent ISO 15552 profile.
| Model | Airtac SC40 Standard Cylinder SC40X120H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 120 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. |
| ×120 | 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 SC40X120H to actuate clamps, gates, or ejectors near furnaces and ovens where ambient temperatures preclude standard seals.
Withstands repeated steam sterilisation cycles in medical and food-processing autoclaves, providing reliable 120 mm linear transfer of trays or doors.
Operates tooling and press mechanisms in hot-melt adhesive dispensing and plastic welding stations, resisting seal degradation from radiant heat.
Choose the SC40 bore when your application needs around 628 N of push force at standard plant air pressure. If you require more force, stepping up to the SC50 delivers 982 N at the same 0.5 MPa. For strokes beyond 300 mm on this 16 mm rod, consider an external guide or a guided cylinder to prevent rod bearing side-load and bending. When replacing an existing unit, match all five key points: 40 mm bore, 120 mm stroke, PT port thread, basic mount (no bracket), and confirm whether a magnet is needed—this SC40X120H has no built-in magnet.
Quick checklist
At 0.5 MPa (5 bar) the cylinder pushes with 628 N and pulls with 528 N. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The AirTAC SC series is a tie-rod cylinder with a shorter body length than ISO 15552 profile cylinders. It is not dimensionally interchangeable. Replace only with another AirTAC SC tie-rod cylinder matching the 40 mm bore, 120 mm stroke, PT ports, and basic mounting.
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