The AirTAC Airtac SCD Standard Cylinder SCD160X50 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, 50mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X50 is a heavy-duty double-rod pneumatic cylinder that outputs an identical 9425 N of force in both extend and retract strokes at 0.5 MPa. With a 160 mm bore and a robust 40 mm through-rod protruding from both end caps, it is built for large-scale tooling that demands perfectly balanced thrust and a rear rod extension for stroke confirmation or secondary actuation.
At 50 mm stroke, the short travel keeps the dual 40 mm rods well-supported, making this unit exceptionally rigid for pressing, clamping, or ejecting large components. The body length A(SCD) is 352 mm, and the adjustable air cushion on each end (29 mm cushion length) smoothly decelerates the high-inertia piston assembly, protecting the end caps from impact damage in high-cycle production.
| Model | Airtac SCD Standard Cylinder SCD160X50 |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 50 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. |
| ×50 | 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 lets you mount press dies or forming tools on both rod ends, doubling throughput by working two parts per cycle with a single cylinder.
Use the rear rod to mount a back-stop or reaction plate while the front rod applies the straightening force, ensuring the workpiece is fully supported and the cylinder body sees balanced loading.
The through-rod design allows a sensor flag or limit switch cam to be mounted on the rear rod end, providing precise end-of-stroke detection for a heavy transfer shuttle without adding external brackets.
This 160 mm bore cylinder provides 9425 N of force at 0.5 MPa, sitting between the 125 mm bore (5734 N) and the 200 mm bore (15080 N). If your application needs more force, step up to the SCD200; for a lighter, more compact solution, the SCD125 may suffice. For single-sided actuation where only one rod end is needed, the standard SC single-rod series is a more economical choice, as it avoids the extra rod length and the force symmetry is not required.
When replacing an existing unit, match five points: 160 mm bore, 50 mm stroke, PT port thread, basic mounting (no bracket), and no magnet. If your current cylinder has an -S suffix, order the SCD160X50-S to retain barrel-mounted sensor compatibility. Note that the SCD is a tie-rod cylinder, not an ISO 15552 profile type, so dimensional interchangeability is limited to other AirTAC SCD double-rod cylinders.
Double-rod checklist
Because the SCD is a double-rod cylinder, the effective piston area is identical on both sides. At 0.5 MPa air pressure, both the push and pull strokes generate 9425 N. At the maximum operating pressure of 0.9 MPa, the force rises to 16964 N in each direction.
Choose the SCD when you need equal force and speed in both directions, or when you require a rear rod extension to mount tooling, a mechanical stop, or a sensor target. The through-rod also provides better guidance and anti-rotation than a single-rod cylinder, though it is not a substitute for a fully guided unit under high side loads.
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