The AirTAC Airtac SC40 Standard Cylinder SC40X140H is a genuine double-acting standard air cylinder with a Ø40mm bore and 140mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X140H is a double-acting single-rod tie-rod cylinder built for high-temperature environments. With Viton (FKM) seals fitted as standard on this -H variant, the operating temperature range shifts to 0 to +150 °C, making it suitable for autoclaves, drying ovens, and hot-work tooling where standard polyurethane would degrade.
At 0.5 MPa air pressure the 40 mm bore generates 628 N pushing force and 528 N pulling force, rising to 1130 N push at 0.9 MPa. The 140 mm stroke sits well within the 1200 mm maximum standard stroke for this bore. The piston rod is 16 mm diameter with M12x1.25 male threads, and the adjustable air cushion at each end provides 21 mm of controlled deceleration to reduce end-of-stroke impact.
| Model | Airtac SC40 Standard Cylinder SC40X140H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 140 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. |
| ×140 | 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 withstand continuous 150°C operation, making this cylinder ideal for heated platen presses, composite curing molds, and thermoforming machine actuation where standard seals would fail prematurely.
The high-temperature FKM seal material resists steam and hot-air sterilization cycles. Use the SC40X140H for door actuation, tray loading, and valve control inside autoclaves and clean-in-place systems.
Divert or stop hot products on a conveyor line. The 140 mm stroke provides sufficient travel for gate or diverter arms, while the Viton seals handle radiated heat from ovens, dryers, or hot-melt processes.
This 40 mm bore cylinder suits medium-force clamping, pressing, and transfer tasks. If you need more force, stepping up to the 50 mm bore (SC50 series) provides 982 N push at 0.5 MPa. For lighter, faster cycling, the 32 mm bore delivers 402 N at the same pressure.
When replacing an existing cylinder, match five points: 40 mm bore, 140 mm stroke, PT1/4 port thread, the required mounting accessory (this basic model has none), and the magnet option (this unit has no built-in magnet). The SC is a tie-rod design and is dimensionally shorter than an ISO 15552 cylinder of the same bore — it is not a drop-in ISO 15552 replacement.
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 1.0 MPa, the theoretical pushing force is 1280 N. Always apply a safety factor for real-world dynamic loads.
No, the AirTAC SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder. The mounting dimensions, body length (142 mm + stroke), and accessory interfaces differ. It is a direct replacement only for another AirTAC SC40 tie-rod cylinder with matching stroke, port thread, and mounting.
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