The AirTAC Airtac SCD Standard Cylinder SCD63X200S 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. Ø63mm bore, 200mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X200S is a 63 mm bore, 200 mm stroke double-rod pneumatic cylinder with a built-in magnet, enabling easy mounting of CMSG/DMSG/EMSG sensors directly on the tie-rod barrel. Because the 20 mm piston rod passes through both end caps, the effective pressure area is identical on each side, producing a balanced 1402 N of force in both directions at 0.5 MPa.
This symmetric output is ideal for applications requiring equal push and pull thrust, such as two-sided tooling or shuttle tables. The cylinder body length A(SCD) is 210 mm, and the adjustable air cushion at each end (28 mm long) decelerates the piston smoothly, reducing end-of-stroke impact. Operating pressure spans 0.15 to 1.0 MPa, with a maximum thrust of 2523 N at 0.9 MPa.
| Model | Airtac SCD Standard Cylinder SCD63X200S |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 200 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, 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 | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | 1962 N |
| Max (@1.0 MPa) | 286 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). |
|---|---|
| 63 | 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 rod extending from both ends allows a single SCD63X200S to operate two mechanisms simultaneously, such as opening and closing a pair of grippers or gates with perfectly synchronized, equal force.
Ideal for a 200 mm linear transfer shuttle, the equal push-pull force ensures consistent motion in both directions. The rear rod can carry a sensor flag to confirm position without adding bulk to the front tooling.
The dual-rod support provides inherent anti-rotation stability for a 200 mm push stroke, making it suitable for part ejection or alignment where a single rod might twist under load.
Choose the SCD63 when the balanced force of 1402 N at 0.5 MPa fits your application. If you need a higher force, stepping up to the SCD80 bore provides 2268 N at the same pressure. For applications that only require actuation from one side, the single-rod SC63 series is a simpler and more cost-effective alternative. This double-rod design offers better guidance than a single-rod cylinder, but it is not a substitute for a proper guided cylinder under significant side loads.
For a drop-in replacement, match the 63 mm bore, 200 mm stroke, PT port thread, basic mounting, and the -S magnet option. This model's 200 mm stroke is well within the 1500 mm maximum standard stroke for the 63 bore. The through-rod design also provides a convenient rear mounting point for a stroke sensor flag or a mechanical stop.
Double-rod checklist
The push and pull forces are identical because the rod extends through both ends of the cylinder. At 0.5 MPa, the force is 1402 N. At 0.7 MPa, it is 1962 N, and at the maximum operating pressure of 0.9 MPa, the force reaches 2523 N.
Choose the SCD when you need equal force and speed in both directions, or when you need to mount tooling, a sensor, or a mechanical stop on the rear rod. The through-rod also provides better bearing support and inherent anti-rotation compared to a single-rod cylinder.
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