The AirTAC Airtac SCD Standard Cylinder SCD160X75S 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, 75mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X75S is a large-bore double-rod pneumatic cylinder that outputs identical thrust in both directions—9425 N at 0.5 MPa—because the 40 mm rod passes through both end caps. This through-rod design eliminates force asymmetry, making it ideal for heavy tooling plates or fixtures that must move with the same power in each stroke direction.
At 75 mm of stroke, this model operates well within the 1500 mm maximum for the 160 mm bore. The body length A(SCD) is 352 mm in the retracted position, and the adjustable air cushion (29 mm) at each end decelerates the high-inertia load smoothly. A built-in magnet, designated by the -S suffix, allows CMSG, DMSG, or EMSG sensors to clamp directly onto the tie-rod barrel for non-contact position sensing.
| Model | Airtac SCD Standard Cylinder SCD160X75S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 75 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. |
| ×75 | 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 powers pressing or clamping operations from either side of the machine, ensuring consistent joint quality regardless of stroke direction.
The integrated -S magnet works with barrel-mounted CMSG/DMSG sensors to confirm piston position at both ends, providing reliable feedback for a two-sided material stop in a conveyor system.
Mount a tool on each protruding 40 mm rod end to perform two operations in one cycle, such as a punch on the front and a forming die on the rear, doubling throughput in a stamping cell.
Step up to this 160 mm bore when the 125 mm bore’s 5734 N at 0.5 MPa is insufficient for your dual-sided tooling. If your application only needs force from one end, a single-rod SC160 cylinder may be a simpler, more compact choice. For direct replacement, match the 160 mm bore, 75 mm stroke, PT port thread, basic mounting, and the -S magnet option.
With a 75 mm stroke, rod bending is not a primary concern, but the double-rod configuration still provides superior guidance and anti-rotation compared to a single-rod cylinder of the same size. For applications with significant off-axis loading, an external guide rail or a dedicated guided cylinder is always recommended over relying solely on the piston rod bearings.
Double-rod checklist
The push and pull forces are identical because the 40 mm rod occupies both pressure areas. At 0.5 MPa you get 9425 N, at 0.7 MPa it is 13194 N, and at the maximum operating pressure of 0.9 MPa the force reaches 16964 N in both directions.
Choose an SCD when you need equal force and speed in both directions, or when you must attach tooling, a stop, or a sensor flag to the rear rod. The through-rod also provides better bearing support and inherent anti-rotation, which a single-rod cylinder cannot offer without an external guide.
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