The AirTAC Airtac SCD Standard Cylinder SCD80X600 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, 600mm stroke, PT3/8 ports and adjustable end cushioning.
The AirTAC SCD80X600 is a double-acting, double-rod pneumatic cylinder delivering an identical 2268 N of thrust in both directions at 0.5 MPa, rising to 4082 N at the maximum operating pressure of 0.9 MPa. Its 25 mm diameter rod passes completely through the cylinder, protruding from both end caps, which gives you a rear rod extension for mounting a sensor flag, a mechanical stop, or secondary tooling without needing extra brackets.
With a 600 mm stroke, this model is well within the 1500 mm maximum standard stroke for the 80 mm bore. The tie-rod construction includes an adjustable air cushion (28 mm long) at each end to decelerate the piston smoothly. The body length A(SCD) is 257 mm, making the overall retracted length longer than a comparable single-rod SC cylinder. Ports are PT3/8, and the rod thread is M20x1.5.
| Model | Airtac SCD Standard Cylinder SCD80X600 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø80 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 600 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. |
| ×600 | 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 through-rod design allows a single cylinder to power a transfer shuttle that picks and places parts on both sides, with the 2268 N force at 0.5 MPa moving loads symmetrically in either direction.
Use the rear rod extension to mount a sensor flag or a cam for external limit switches, enabling precise end-of-stroke detection without interfering with the main tooling on the front rod.
Apply equal, opposing force for light pressing or straightening operations. The balanced 4082 N thrust at 0.9 MPa ensures the workpiece is loaded symmetrically from both sides.
Choose the SCD80X600 when your application needs a balanced push-pull force of 2268 N at 0.5 MPa from both ends of the rod. If you require more force, the SCD100 bore steps up to 3681 N at the same pressure. For purely single-sided pushing with a shorter overall length, a single-rod SC80 cylinder is a better fit. This double-rod design provides superior rod guidance compared to a single-rod cylinder, but at a 600 mm stroke, you must evaluate side loads carefully. If the rod experiences significant lateral force, pair the cylinder with an external guide rail or switch to a dedicated guided cylinder to prevent rod bending and premature seal wear.
For a direct replacement, match the 80 mm bore, 600 mm stroke, PT3/8 port thread, and the basic mounting style. Adding a suffix to the model code lets you configure a built-in magnet (-S), a mounting accessory like a foot mount (LB) or centre trunnion (TC), a Viton seal (H) for high temperatures, or a G thread port.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are equal. The effective piston area is the same on both sides. 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 produces 4082 N.
Choose the SCD when you need to mount tooling or a sensor on both ends of the rod, or when you require perfectly equal force and speed in both directions. The through-rod also provides better bearing support and inherent anti-rotation compared to a single-rod cylinder, but it does not hold its position if air pressure is lost.
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