The AirTAC Airtac SC40 Standard Cylinder SC40X350H is a genuine double-acting standard air cylinder with a Ø40mm bore and 350mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X350H is a double-acting pneumatic cylinder from the AirTAC SC tie-rod series, equipped with high-temperature Viton (FKM) seals that shift the operating range to 0–150°C. With a 40 mm bore and 350 mm stroke, it generates 628 N of push force at 0.5 MPa and up to 1130 N at 0.9 MPa, making it suitable for hot-environment actuation where standard seals would degrade.
This model uses a 16 mm diameter piston rod with M12x1.25 male threads and PT1/4 ports. The adjustable air cushion at each end provides 21 mm of deceleration travel, and the tie-rod body measures 142 mm in length A, giving a total extended length of approximately 492 mm. The H suffix specifies Viton seals for reliable performance in aggressive thermal conditions.
| Model | Airtac SC40 Standard Cylinder SC40X350H |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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. |
| ×350 | 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 SC40X350H to operate continuously at 150°C, making it ideal for autoclave doors, drying ovens, and foundry equipment where standard seals would fail.
Delivers 628 N at 0.5 MPa for clamping and positioning in hot-melt assembly or plastic welding stations, resisting seal degradation from radiant heat.
The 350 mm stroke pushes or diverts parts on conveyors passing through curing ovens or heat-shrink tunnels, where ambient temperatures exceed standard seal limits.
Choose the SC40X350H when your application requires a 350 mm stroke in a 40 mm bore with high-temperature sealing. If the force at 0.5 MPa is insufficient, stepping up to the 50 mm bore (SC50 series) increases push force to 982 N at the same pressure. For lower force requirements, the 32 mm bore delivers 402 N. Always confirm that the port thread (PT1/4), mounting accessory, and magnet option match your existing setup.
At 350 mm of stroke, the 16 mm rod is subject to bending moments under side loads. For applications where the load is not guided externally, consider adding an external linear guide or switching to a guided cylinder to prevent rod bearing wear and ensure long service life.
Quick checklist
At 0.5 MPa 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 SC series is a tie-rod cylinder and is physically shorter than an ISO 15552 profile cylinder of the same bore and stroke, so it is not dimensionally interchangeable. It can only directly replace another AirTAC SC40 cylinder with matching stroke, port thread, and mounting.
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