The AirTAC Airtac SCD Standard Cylinder SCD160X300S 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, 300mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X300S is a double-acting, double-rod pneumatic cylinder that delivers identical force in both directions—9425 N at 0.5 MPa—because the 40 mm rod passes through both end caps. This symmetry makes it ideal for applications where a rear rod extension carries a secondary tool, a stopper bolt, or an external sensor flag, and the through-rod design provides better bearing support than a single-rod cylinder of the same bore.
With a 300 mm stroke and a body length A(SCD) of 352 mm, this tie-rod cylinder includes an adjustable air cushion (29 mm) at each end to decelerate the piston smoothly. The built-in magnet (denoted by the -S suffix) allows CMSG, DMSG, or EMSG sensors to clamp directly onto the barrel for non-contact position sensing, and the default PT3/4 port thread and TPU seals suit standard compressed-air systems operating from -20 to +70 °C.
| Model | Airtac SCD Standard Cylinder SCD160X300S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 300 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. |
| ×300 | 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 push and pull force of 9425 N at 0.5 MPa makes the SCD160X300S perfect for shuttle tables where a fixture is mounted on the front rod and a counteracting tool or stop is attached to the rear rod, ensuring balanced motion in both directions.
With the built-in -S magnet, CMSG or DMSG sensors can be mounted on the barrel to detect piston position. The rear rod extension provides a convenient place to attach a physical sensor flag or cam for a redundant hard-limit switch.
The through-rod design inherently resists rotation better than a single-rod cylinder. Use the SCD160X300S to carry alignment-sensitive tooling where even slight rod twist is unacceptable, without needing an external anti-rotation bracket.
Choose the SCD160 bore when your application needs about 9425 N of thrust each way at 0.5 MPa. If you can accept a lower force, the SCD125 bore provides 5734 N at the same pressure and reduces air consumption, while stepping up to the SCD200 bore raises the force to 15080 N. Because this is a 300 mm stroke, ensure the unsupported rod length is managed—a double-rod cylinder offers more guidance than a single rod, but it is not a substitute for a properly guided cylinder under real side load; consider an external guide rail if the load is not purely axial.
For a direct replacement, match the 160 mm bore, 300 mm stroke, PT3/4 port thread, basic mounting, and the -S magnet option. If your task only requires force at one end, the single-rod SC series may be a simpler choice, but you would lose the rear rod access and the perfectly balanced push-pull force this SCD model provides.
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 produces 13194 N, and at the maximum operating pressure of 0.9 MPa it produces 16964 N in both directions.
Choose the SCD when you need a rear rod extension to mount tooling, a stopper, or a sensor target, or when you require perfectly equal force and speed in both directions. The through-rod also provides better guidance and anti-rotation than a single-rod SC, though it is not a replacement for a fully guided cylinder under high side loads.
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