The AirTAC Airtac SCD Standard Cylinder SCD63X75TC 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, 75mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X75TC delivers perfectly symmetrical force in both directions, producing 1402 N of push and 1402 N of pull at 0.5 MPa thanks to its through-rod design. This 63 mm bore model features a 20 mm diameter rod extending from both end caps, making it ideal for applications where a tool or sensor flag needs to be mounted on the rear rod, or where equal speed and force are critical for a balanced process.
Supplied with a TC centre trunnion pivot and the matching TCM1 bracket (F-SC63TC), this cylinder is ready to mount in a pivoting application straight out of the box. The 75 mm stroke is cushioned by 28 mm of adjustable pneumatic cushioning at each end, smoothly decelerating the piston without metal-to-metal contact. Its tie-rod construction and PT1/4 ports make it a robust, field-serviceable workhorse for industrial automation.
| Model | Airtac SCD Standard Cylinder SCD63X75TC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 75 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. |
| ×75 | 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 20 mm rod extending from both ends allows tooling to be mounted on the front and rear, enabling a single cylinder to perform a push operation followed by a pull operation on a return stroke, or to operate two separate mechanisms in sequence.
With identical push and pull force of 2523 N at 0.9 MPa, this cylinder is perfect for clamping fixtures where the workpiece must be held with the same pressure regardless of the actuation direction, ensuring consistent part quality.
The dual-rod support naturally resists rod rotation better than a single-rod cylinder. This makes the SCD63X75TC a strong choice for a short-stroke transfer shuttle where maintaining the orientation of the carried part is essential without adding an external anti-rotate guide.
This 63 mm bore SCD provides 1402 N of balanced force at 0.5 MPa, sitting between the smaller 50 mm bore (825 N) and the larger 80 mm bore (2268 N). If your load requires more force, stepping up to the SCD80 series is the logical path, while a step down to the SCD50 saves space and air consumption if 825 N is sufficient. For applications that only need force from one end, the single-rod SC63 series offers a higher push force due to the full piston area and is a more economical choice.
To replace an existing SCD63X75TC, match the 63 mm bore, 75 mm stroke, PT port thread, TC centre trunnion mounting, and confirm the magnet option (this model has no magnet). The double-rod design provides better guidance than a single-rod cylinder, but for significant side loads, an external guide rail or a dedicated guided cylinder is still required to prevent premature rod bearing wear.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. The effective piston area is the same on both sides. At 0.5 MPa it produces 1402 N, at 0.7 MPa it produces 1962 N, and at the maximum operating pressure of 0.9 MPa it delivers 2523 N of force in both directions.
Choose the SCD when you need perfectly equal speed and force in both directions, or when you need to attach tooling, a limit switch dog, or a stroke adjuster to the rear rod. The through-rod also provides better support for the piston, reducing uneven bearing wear in horizontal applications, though it is not a replacement for a fully guided cylinder under heavy side loads.
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