The AirTAC Airtac SCD Standard Cylinder SCD160X175S 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, 175mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X175S is a heavy-duty double-rod pneumatic cylinder that generates an identical 9425 N of thrust in both directions at 0.5 MPa, thanks to its through-rod design where the 40 mm rod extends from both end caps. This symmetry is invaluable for large fixtures that need a rear rod connection for a secondary tool, counterbalance, or external stroke confirmation, ensuring the force balance doesn't shift mid-cycle.
With a 175 mm stroke and a body length A(SCD) of 352 mm, this cylinder includes a built-in magnet (-S suffix) along the tie-rod barrel, allowing CMSG, DMSG, or EMSG sensors to be clamped directly on for non-contact position sensing. The adjustable air cushion on each end, with a 29 mm cushion length, decelerates the substantial moving mass smoothly, protecting the end caps during high-cycle operation.
| Model | Airtac SCD Standard Cylinder SCD160X175S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 175 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. |
| ×175 | 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 40 mm rod protruding from both ends allows tooling to be mounted on the front and rear simultaneously, perfect for operating two clamps or gates in a synchronised motion with exactly equal force.
With 16964 N of thrust available at 0.9 MPa, this cylinder is suited for light forming or pressing operations where the equal push-pull force simplifies the tooling return stroke design.
The built-in magnet allows a CMSG or DMSG sensor to be mounted on the rear rod extension, providing end-of-stroke confirmation in a protected location away from the hot or dirty working zone.
This 160 mm bore model suits applications needing roughly 9.4 kN of balanced force. If your load requires less thrust, stepping down to the SCD125 bore provides 5734 N at the same pressure, while the SCD200 bore steps up to 15080 N. For any double-rod replacement, match all five points: the 160 mm bore, 175 mm stroke, PT port thread, the specific SCD mounting accessory (this unit is basic, but FA, LB, or TC are available), and the -S magnet for sensor compatibility.
A double-rod cylinder provides better guidance than a single-rod type, but at a 175 mm stroke, it is not a substitute for a fully guided cylinder if the tooling applies a significant side load. If your application involves off-centre forces, consider an external guide rail system to protect the rod bearings and ensure long seal life.
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 delivers 16964 N in both directions.
Choose the SCD when you need perfectly equal force and speed in both directions, or when you require a rear rod extension to mount a sensor flag, a mechanical stop, or secondary tooling. The through-rod also provides better support for the piston, reducing uneven wear on the bearings compared to a single-rod cylinder.
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