The AirTAC Airtac SC40 Standard Cylinder SC40X400N 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 AirTAC SC40X400N is a double-acting single-rod pneumatic cylinder with a 40 mm bore and 400 mm stroke, fitted with NBR (nitrile) seals for reliable operation in standard temperature environments. At 0.5 MPa air pressure it provides 628 N of push force and 528 N of pull force, scaling up to 1130 N push at the maximum operating pressure of 0.9 MPa.
This model uses a 16 mm diameter piston rod with an M12x1.25 rod thread and PT1/4 port connections. The body length A is 142 mm, giving a total extended length of approximately 542 mm. The adjustable air cushion at each end (21 mm cushion length) decelerates the piston smoothly, reducing end-of-stroke impact without any mechanical locking function.
| Model | Airtac SC40 Standard Cylinder SC40X400N |
|---|---|
| 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.
The 400 mm stroke and 628 N push force at 0.5 MPa suit medium-reach diverter gates on packaging conveyors, reliably sorting cartons without excessive air consumption.
Delivers consistent clamping pressure for CNC fixtures and assembly jigs. The NBR seals provide dependable sealing for repetitive workholding cycles in standard factory air.
Ideal for pushing totes or boxes off a roller conveyor onto a perpendicular lane. The 16 mm rod and adjustable cushion handle the inertia of medium-weight packages smoothly.
Choose the SC40 bore when your application needs between 628 N and 1130 N of push force. For lighter loads, stepping down to the SC32 bore (402 N at 0.5 MPa) can reduce air consumption and physical size. If your force requirement exceeds 1130 N, the SC50 bore delivers 982 N at 0.5 MPa and 1767 N at 0.9 MPa.
At 400 mm stroke, the 16 mm rod is long enough that side loads must be carefully managed. Mount the cylinder so the load is guided externally and the rod sees only pure axial push-pull forces. For applications with unavoidable side load, add an external linear guide or consider a guided cylinder variant. When replacing an existing unit, match bore, stroke, PT port thread, NBR seal material, and basic (no bracket) mounting to ensure identical fit and performance.
Quick checklist
At 0.5 MPa the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 0.9 MPa, push force reaches 1130 N. The theoretical maximum at 1.0 MPa is 128 kgf.
No. The SC40X400N is a double-acting cylinder and will not hold position when air pressure is exhausted or the directional valve is centered. If load holding is required, add a pilot-operated check valve or an external mechanical rod lock.
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