The AirTAC Airtac SCD Standard Cylinder SCD63X200 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 SCD63X200 is a double-acting, double-rod pneumatic cylinder that outputs identical force in both directions because the 20 mm rod subtracts from the piston area on each side. At 0.5 MPa it produces 1402 N of thrust, rising to 2523 N at the 0.9 MPa maximum operating pressure, making it a balanced actuator for push-pull tooling.
With a 200 mm stroke and a body length A of 210 mm, this tie-rod cylinder has an adjustable air cushion of 28 mm at each end to decelerate the piston quietly. The through-rod design improves rod guidance and lets you mount a sensor flag, stopper, or secondary tool on the rear rod end.
| Model | Airtac SCD Standard Cylinder SCD63X200 |
|---|---|
| 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.
Operates tooling on both ends of the cylinder simultaneously, such as clamping fixtures or pushing components from either side of a conveyor, with identical 1402 N force each way.
The twin 20 mm rods provide inherent anti-rotation, making the SCD63X200 suitable for pushing parts onto a nest without adding an external guide for the rod end.
Moves a shuttle plate between two stations with equal acceleration and deceleration in both directions, using the rear rod to carry a sensor flag for end-of-stroke detection.
Choose the SCD63X200 when you need equal force and speed in both directions on a mid-range bore. If 1402 N at 0.5 MPa is too close to your load, step up to the SCD80 bore (2268 N at 0.5 MPa) for more headroom; if you can accept asymmetric push/pull, a single-rod SC63 may reduce cost. For genuine AirTAC replacement, match bore (63), stroke (200), PT port thread, SCD mounting accessory, and magnet option.
At 200 mm stroke the twin 20 mm rods are well supported, but if your application imposes side load, add an external guide rail or switch to a guided cylinder — the through-rod alone is not a substitute for a proper linear guide.
Double-rod checklist
Push and pull force are identical on this double-rod cylinder. At 0.5 MPa it delivers 1402 N, at 0.7 MPa it is 1962 N, and at the maximum operating pressure of 0.9 MPa it reaches 2523 N. The theoretical force at 1.0 MPa is 286 kgf.
Pick the SCD when you need equal force and speed in both directions, want to mount tooling or a sensor on the rear rod, or require better rod guidance and anti-rotation from the twin-rod design. If you only need force in one direction and want a lower-cost, more compact actuator, the single-rod SC series is the better fit.
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