The AirTAC Airtac SC40 Standard Cylinder SC40X151 is a genuine double-acting standard air cylinder with a Ø40mm bore and 151mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The AirTAC SC40X151 is a double-acting tie-rod cylinder with a 40 mm bore and a non-standard stroke of 151 mm. It generates a push force of 628 N at 0.5 MPa and up to 1130 N at the maximum operating pressure of 0.9 MPa, driven by a 16 mm diameter piston rod.
This model features a compact body length A of 142 mm and an adjustable air cushion of 21 mm at each end to decelerate the piston smoothly. The standard PT1/4 port and M12x1.25 rod thread make it a direct fit for many general automation tasks. As a non-standard stroke, this unit is built to order for applications where the standard 150 mm or 175 mm strokes are not an exact match.
| Model | Airtac SC40 Standard Cylinder SC40X151 |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 151 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. |
| ×151 | 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 628 N push force at 0.5 MPa easily actuates a gate or diverter flap on a light-to-medium-duty conveyor line, sorting packages with a 151 mm throw.
Ideal for a welding or assembly jig, the SC40X151 provides a controlled 151 mm stroke to clamp components with a consistent force of up to 1130 N.
With its tie-rod construction and TPU seals, this cylinder can operate a small chute gate or seed diverter in a dusty agricultural environment, powered by standard shop air.
Select the SC40 when your application needs a mid-range force between the smaller SC32 (402 N at 0.5 MPa) and the larger SC50 (982 N at 0.5 MPa). This 151 mm stroke is non-standard, so verify that a standard 150 mm stroke cannot satisfy the movement requirement before specifying this made-to-order length.
For a stroke of 151 mm, the 16 mm rod is robust for purely axial loads, but any side force requires an external linear guide to prevent rod bending and premature bearing wear. To replace an existing cylinder, match five points: the 40 mm bore, the exact 151 mm stroke, the PT1/4 port thread, the basic mounting style, and the absence of a magnet.
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, the push force increases to 1130 N. The theoretical maximum force at 1.0 MPa is 128 kgf.
A standard SC40X150 is a stock item and will be faster to ship. The 1 mm difference in stroke is negligible for most applications. We recommend checking if your end-of-stroke position can accommodate the standard 150 mm stroke before ordering the non-standard SC40X151.
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