The AirTAC Airtac SCD Standard Cylinder SCD63X100 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, 100mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X100 is a double-acting pneumatic cylinder with a through-rod design, giving you identical 1402 N output in both directions at 0.5 MPa. Its 20 mm diameter rod extends from both ends, making it ideal for tasks that need a rear connection point for a sensor flag, stopper, or secondary tooling without adding an external bracket.
This 63 mm bore model uses a 100 mm standard stroke and features an adjustable air cushion (28 mm length) at each end to decelerate the piston smoothly. The tie-rod construction and dual-rod support provide better guidance than a single-rod cylinder, though external guides are still needed for high side loads.
| Model | Airtac SCD Standard Cylinder SCD63X100 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 100 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. |
| ×100 | 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 lets you mount a workpiece carrier on each side, doubling throughput in a material transfer station with one cylinder.
With a rod supported by bearings in both end caps, the SCD63X100 resists twisting better than a single-rod cylinder, helping maintain alignment in pressing or locating fixtures.
Attach a sensor flag or cam to the rear rod to trigger external limit switches, keeping the front tooling area clear and simplifying sensor bracket design.
Choose the SCD63X100 when your application needs equal push and pull force on both rod ends. If you need more thrust, the SCD80 bore steps up to 2268 N at 0.5 MPa; for a lighter, more compact design, the SCD50 delivers 825 N. If you only need force from one end, a single-rod SC series cylinder is usually more economical.
For a direct replacement, match the 63 mm bore, 100 mm stroke, PT port thread, and basic mounting style. If your existing unit has a magnet, order SCD63X100-S. This cylinder is not dimensionally interchangeable with ISO 15552 profiles.
Double-rod checklist
Push and pull force are equal because the rod is on both sides of the piston. At 0.5 MPa you get 1402 N, at 0.7 MPa it is 1962 N, and at the max operating pressure of 0.9 MPa the force reaches 2523 N.
Pick the SCD when you need to mount tooling or sensors on both ends, require equal speed and force in both directions, or want the better bearing support and anti-rotation that a through-rod provides. If you only need force at one rod end, the SC single-rod series is a simpler, lower-cost choice.
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