The AirTAC Airtac SCD Standard Cylinder SCD50X80 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, 80mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD50X80 is a double-acting pneumatic cylinder with a 50 mm bore, an 80 mm stroke, and a continuous piston rod extending from both ends. Because the rod area is subtracted from both sides of the piston, this design produces an identical force of 825 N in both directions at 0.5 MPa, making it ideal for applications where balanced thrust and speed are critical. The 20 mm diameter rod provides robust guidance and anti-rotation support for dual-sided tooling.
This genuine AirTAC SCD series cylinder features an adjustable pneumatic cushion (21 mm length) at each end to decelerate the piston smoothly, reducing end-of-stroke impact. With a body length A of 207 mm, it is a compact tie-rod design for industrial automation. The standard TPU seals and PT1/4 ports suit a wide range of filtered-air applications from -20 to +70 °C.
| Model | Airtac SCD Standard Cylinder SCD50X80 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø50 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 80 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. |
| ×80 | 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 tooling to be mounted on both ends, enabling a single cylinder to perform a push operation on one side while simultaneously pulling on the other.
The dual-rod support provides inherent anti-rotation, making this cylinder suitable for simple push/pull applications where a guided rod is needed but a full guided cylinder is not required.
With identical force of 825 N in both directions, the SCD50X80 ensures a symmetrical motion profile for small transfer shuttles, providing consistent cycle times regardless of travel direction.
Choose the SCD50X80 when your mechanism needs equal push and pull force from a compact double-rod package. If you require more thrust, stepping up to the 63 mm bore provides 1402 N at the same 0.5 MPa. For a single-sided tool, the standard SC single-rod series is a simpler choice. This cylinder is a direct dimensional replacement only for another AirTAC SCD50 double-rod unit matching the 80 mm stroke, PT1/4 ports, and basic mounting configuration.
Double-rod checklist
The push and pull forces are identical because the piston rod extends through both ends of the cylinder. At 0.5 MPa, the force is 825 N; at 0.7 MPa, it is 1154 N; and at the maximum operating pressure of 0.9 MPa, the force reaches 1484 N.
Select the SCD when you need a rear rod end for mounting a sensor flag, a mechanical stop, or secondary tooling. It is also the right choice when you require perfectly equal speed and force in both directions, which a single-rod cylinder cannot provide due to the area difference on either side of its piston.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.