The AirTAC Airtac SC40 Standard Cylinder SC40X65H is a genuine double-acting standard air cylinder with a Ø40mm bore and 65mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X65H is a double-acting pneumatic cylinder with a 40 mm bore and 65 mm stroke, fitted with high-temperature Viton (FKM) seals that shift the operating range from the standard -20–+70 °C up to 0–+150 °C. This makes it suitable for autoclaves, foundries, and drying lines where standard polyurethane would degrade. At 0.5 MPa it generates 628 N pushing force, and at the maximum operating pressure of 0.9 MPa it reaches 1130 N.
This model uses a 16 mm diameter piston rod with an M12x1.25 thread and PT1/4 ports. The adjustable air cushion at each end (21 mm long) decelerates the piston smoothly, reducing end-of-stroke shock. The body length A is 142 mm, giving a total extended length of approximately 207 mm. As a tie-rod cylinder, it is shorter than an equivalent ISO 15552 profile unit and is not dimensionally interchangeable with that standard.
| Model | Airtac SC40 Standard Cylinder SC40X65H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 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. |
| ×65 | 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 SC40X65H to operate continuously in ambient temperatures up to 150 °C, making it ideal for actuating dampers, diverters, or clamps in baking ovens, autoclaves, and hot-melt glue systems.
With 628 N of force at 0.5 MPa and a short 65 mm stroke, this cylinder suits light assembly presses, drilling jig clamps, and pick-and-place end-effectors where heat from nearby tooling is a concern.
The FKM seal material resists steam and cleaning agents better than standard NBR or TPU, so the SC40X65H is often specified for actuation inside medical sterilisation chambers and pharmaceutical packaging lines.
Choose the SC40 bore when your application needs between roughly 500 N and 1100 N of pneumatic force. If you need more thrust, stepping up to the SC50 delivers 982 N at 0.5 MPa; for a lighter, more compact solution the SC32 provides 402 N at the same pressure. For strokes of 300 mm or longer, evaluate side loads carefully—a 16 mm rod can bend under lateral force, so add an external guide or switch to a guided cylinder.
To replace an existing cylinder, match five points: bore (40 mm), stroke (65 mm), port thread (this model has PT1/4), mounting accessory (basic, no bracket), and magnet option (no built-in magnet). The Viton seal variant is essential for high-temperature environments; do not substitute a standard TPU-sealed cylinder if the ambient temperature exceeds 70 °C.
Quick checklist
At 0.5 MPa the cylinder pushes with 628 N and pulls with 528 N. At 0.7 MPa push force rises to 879 N, and at the maximum operating pressure of 0.9 MPa it reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf, but the recommended working range is 0.15–0.9 MPa.
No. The AirTAC SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder of the same bore and stroke. It will only drop in to replace another AirTAC SC tie-rod cylinder with matching bore, stroke, port thread, and mounting. Always verify the body length A (142 mm for this 40 mm bore) and mounting dimensions before ordering.
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