The AirTAC Airtac SCD Standard Cylinder SCD50X160 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø20mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø50mm bore, 160mm stroke, PT1/4 ports and adjustable end cushioning.
The AirTAC SCD50X160 is a double-acting, double-rod pneumatic cylinder that outputs an identical 825 N of force in both directions at 0.5 MPa, thanks to its through-rod design where the 20 mm rod subtracts the same area from each piston face. With a 160 mm stroke and a body length A(SCD) of 207 mm, it is a compact choice for symmetrical push-pull tasks.
Both ends of the cylinder feature the M16x1.5 rod thread, allowing tooling or sensors to be mounted on either side. The adjustable air cushion, with a 21 mm cushion length, decelerates the piston smoothly at both stroke ends, protecting the end caps during high-cycle operation.
| Model | Airtac SCD Standard Cylinder SCD50X160 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 160 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 | 825 N | 825 N |
| 0.7 MPa | 1155 N | 1155 N |
| Max (@1.0 MPa) | 168 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). |
|---|---|
| 50 | 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.
The rod extending from both ends allows a single SCD50X160 to operate two mechanisms in sequence, such as a diverter gate and a confirmation flag, with perfectly synchronized motion.
Delivers 1484 N of clamping force at 0.9 MPa from either rod end, ideal for fixtures that require equal pressure on two opposing workpieces without complex linkages.
Commonly used in small part transfer units where the rear rod carries a counterbalance or sensor target, ensuring the shuttle moves with consistent speed in both extend and retract.
For applications needing more force, the SCD63 bore steps up to 1402 N at 0.5 MPa, while the SCD40 offers 528 N if a smaller footprint is required. Choose this double-rod model over a single-rod SC when you need equal speed and thrust in both directions, or when the rear rod is useful for mounting a stroke sensor flag or a secondary tool. A true guided cylinder is still necessary if the load applies significant side force, as the dual-rod design improves guidance but does not eliminate bending moments.
To replace an existing unit, match the 50 mm bore, 160 mm stroke, PT1/4 port thread, and the specific SCD mounting accessory (basic, FA, LB, or TC). If your current cylinder has a built-in magnet for sensors, ensure the replacement carries the -S suffix.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 825 N, at 0.7 MPa it produces 1154 N, and at the maximum operating pressure of 0.9 MPa it reaches 1484 N in both directions.
Choose the SCD when your application requires equal force and speed in both directions, or when you need to mount tooling, a stop, or a position sensor on the rear rod. The through-rod also provides better bearing support than a single-rod cylinder, though it is not a replacement for a fully guided actuator under heavy side loads.
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