
The AirTAC Airtac SCD Standard Cylinder SCD160X450S is a genuine double-acting DOUBLE-ROD air cylinder: the Ø40mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø160mm bore, 450mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X450S is a large-bore double-rod pneumatic cylinder that outputs an identical 9425 N of thrust in both extend and retract directions at 0.5 MPa, thanks to its through-rod design where the 40 mm rod occupies both pressure areas equally. With a 450 mm stroke and a 29 mm adjustable air cushion at each end, it provides smooth, controlled deceleration for heavy, balanced tooling.
This model includes a built-in magnet (-S suffix), allowing CMSG, DMSG, or EMSG reed and solid-state sensors to be clamped directly onto the tie-rod barrel for non-contact position sensing from either end of the cylinder. The body length A(SCD) is 352 mm, and the maximum theoretical force at 1.0 MPa reaches 1922 kgf, making it a robust choice for symmetrical, high-force linear tasks.
| Model | Airtac SCD Standard Cylinder SCD160X450S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 450 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCD (double-rod) datasheet. Because the rod runs through both caps, the effective area is (bore² − rod²) in both directions. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | 13195 N |
| Max (@1.0 MPa) | 1922 kgf | |
Push and pull are EQUAL on a double-rod cylinder — both chambers lose the rod area, so effective area = (bore² − rod²) each way. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCD | Double-rod tie-rod cylinder series (rod out both ends). |
|---|---|
| 160 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod), SCJ (adjustable stroke), SCT (multi-position). SCD mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
The equal 9425 N force in both directions makes this cylinder perfect for two-sided pressing or clamping fixtures where the work must be engaged with the same power from either side.
The through-rod and built-in magnet allow a sensor to be mounted on the rear barrel to confirm full retraction, while the front rod handles the primary tooling, simplifying control on transfer shuttles.
With 16964 N of force available at 0.9 MPa, this SCD160 cylinder can power alignment or straightening stations where the rod must extend through a fixture to push a part back into position on the return stroke.
Choose the SCD160 bore when your application needs around 9425 N of balanced force at standard plant pressure. If your load is lighter, stepping down to the SCD125 bore reduces the force output to 5734 N at 0.5 MPa, saving air consumption and physical space. For a higher thrust requirement, the SCD200 bore provides 15080 N at the same pressure. This double-rod cylinder is ideal when you need to mount tooling or a limit-switch dog on the rear rod, but if the 450 mm stroke creates an overhung moment on the rods, consider adding an external linear guide or switching to a guided cylinder to protect the rod bearings from side wear. To replace an existing unit, match the 160 mm bore, 450 mm stroke, PT port thread, basic mounting, and the -S magnet option to ensure identical sensor compatibility.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 9425 N, at 0.7 MPa it delivers 13194 N, and at the maximum operating pressure of 0.9 MPa the force is 16964 N in both directions.
Select the SCD when you need perfectly equal speed and force in both directions, or when you require a rear rod extension to mount a secondary tool, a mechanical stop, or a sensor flag. The dual-rod support also provides better guidance than a single-rod cylinder, though it is not a replacement for a fully guided actuator under high side loads.
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