The AirTAC Airtac SCD Standard Cylinder SCD80X200 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø80mm bore, 200mm stroke, PT3/8 ports and adjustable end cushioning.
The SCD80X200 is a double-acting pneumatic cylinder with a through-rod design, delivering identical force in both directions—2268 N at 0.5 MPa and up to 4082 N at 0.9 MPa. Its 25 mm diameter rod protrudes from both ends, making it ideal for applications that need a rear rod extension for mounting sensors, cams, or a secondary tool. The tie-rod construction and 28 mm adjustable air cushion on each end provide reliable deceleration for the 200 mm stroke.
With a body length of 257 mm and PT3/8 ports, this genuine AirTAC actuator is built for balanced, two-sided tasks. The equal push-pull force characteristic eliminates the output asymmetry you get with a single-rod cylinder, simplifying pneumatic circuit design when the load must be powered in both directions. The double rod also improves bearing support compared to a cantilevered single rod, though it is not a replacement for a fully guided cylinder under heavy side loads.
| Model | Airtac SCD Standard Cylinder SCD80X200 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 200 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 28 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | 3175 N |
| Max (@1.0 MPa) | 463 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). |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 200 mm stroke and equal 2268 N force in both directions make the SCD80X200 perfect for shuttling parts between two stations, with the rear rod available to actuate a secondary mechanism or flag a sensor.
Use the identical push and pull force for symmetrical pressing or forming operations. The 25 mm through-rod provides consistent speed and power for closing and opening a dual-sided fixture.
The dual-rod support naturally resists rotation, making this cylinder a good fit for pushing or ejecting parts where maintaining angular alignment is critical, without needing an external anti-rotate guide.
Choose the SCD80X200 when your application requires equal force and speed in both directions and you can benefit from a rear rod extension. If you need more thrust, stepping up to the SCD100 bore provides 3681 N at 0.5 MPa. For applications needing only a single working end, the standard SC80 single-rod cylinder is a simpler choice. To replace an existing SCD80X200, match the 80 mm bore, 200 mm stroke, PT port thread, basic mounting style, and ensure the magnet option (-S) matches your sensor setup. At this 200 mm stroke, rod bending is typically not a concern under axial loads, but any significant side force should be managed with an external guide rail.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 2268 N, at 0.7 MPa it produces 3175 N, and at the maximum operating pressure of 0.9 MPa it delivers 4082 N of force in both directions.
Choose the SCD double-rod design when you need equal force and speed in both directions, or when you need to mount a tool, stopper, or sensor flag on the rear rod. The through-rod also provides better guidance and inherent anti-rotation compared to a single-rod cylinder, though it is not a substitute for an external guide under high side loads.
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