The AirTAC Airtac SCD Standard Cylinder SCD160X160S 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, 160mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD160X160S is a large-bore double-rod pneumatic cylinder engineered for applications demanding identical thrust in both directions. With a 40 mm diameter rod passing through both end caps, the effective piston area is balanced, producing 9425 N of force each way at 0.5 MPa and up to 16964 N at the maximum operating pressure of 0.9 MPa.
This 160 mm bore model features a 160 mm standard stroke and an overall body length A(SCD) of 352 mm. The built-in magnet, denoted by the -S suffix, allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position sensing, simplifying automation integration without external brackets.
| Model | Airtac SCD Standard Cylinder SCD160X160S |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø160 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 160 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. |
| ×160 | 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.
Operates tooling on both ends of the cylinder simultaneously, such as clamping fixtures on opposite sides of a conveyor, using the identical push and pull force of the through-rod design.
The protruding rear rod provides a clean surface to attach a sensor flag or cam, while the built-in magnet on the piston allows CMSG/DMSG sensors to confirm end-of-stroke position directly on the barrel.
The dual 40 mm rod support offers enhanced resistance to rotation compared to a single-rod cylinder, making it suitable for pushing heavy pallets or dies where maintaining alignment is critical.
Choose the SCD160 when your application requires symmetric force around 9425 N at 0.5 MPa. If your load is lighter, the SCD125 bore provides 5734 N, which may reduce air consumption and physical footprint. For higher thrust, step up to the SCD200, which delivers 15080 N at the same pressure. This double-rod design is ideal when you need a rear rod extension for a stopper bolt or sensor flag, but if the load applies significant side force, a guided cylinder or external linear rail is necessary to protect the rod bearings.
As a direct replacement, match the 160 mm bore, 160 mm stroke, PT port thread, basic mounting style, and the -S magnet option. This model does not include a mounting bracket; for pivoting applications, consider the TC centre trunnion version.
Double-rod checklist
Because the piston rod occupies area on both sides of the piston, 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 reaches 16964 N.
Choose the SCD when you need equal force and speed in both directions, or when you require a rear rod extension to mount a mechanical stop, limit switch cam, or secondary tooling. The dual-rod bearing also provides better guidance against side loads than a single-rod cylinder, though it is not a substitute for a fully guided actuator under high moment loads.
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