The AirTAC Airtac SCD Standard Cylinder SCD63X50TC 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, 50mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X50TC delivers a balanced 1402 N of force in both extend and retract strokes at 0.5 MPa, thanks to its double-rod design where the 20 mm rod passes through both end caps. This symmetry eliminates force differential, making it ideal for tasks where consistent bidirectional thrust is non-negotiable.
Supplied with a TC centre trunnion mount and the TCM1 bracket, this 63 mm bore cylinder is built for pivoting applications. The body length is 210 mm and it features a 28 mm adjustable air cushion, providing smooth deceleration for the through-rod assembly in compact, short-stroke actuation.
| Model | Airtac SCD Standard Cylinder SCD63X50TC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 50 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. |
| ×50 | 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.
Provides equal 1402 N clamping force from both sides of a fixture, ensuring uniform pressure without needing different regulator settings for extend and retract.
The TC centre trunnion mount allows the cylinder body to pivot as it actuates a small diverter gate, with the rear rod available for a confirmation sensor flag.
Operates a small press platen with identical force and speed in both directions, using the through-rod for better bearing support and alignment.
Choose the SCD63 bore when your application needs around 1400 N of balanced force each way. If you require more thrust, stepping up to the SCD80 delivers 2268 N at the same pressure. For a fixed linear mount, consider the basic or LB foot-mounted variant; the TC trunnion here is specifically for loads that need to swing through an arc. As with any double-rod cylinder, ensure the rear rod extension has clearance. For replacement, match the 63 mm bore, 50 mm stroke, PT port thread, and the TC mounting style.
Double-rod checklist
Because the piston rod extends through both ends of this double-rod cylinder, the effective pressure area is identical in both directions. The force is 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at the maximum operating pressure of 0.9 MPa.
Use the SCD when you need equal force and speed in both directions, or when you require a rear rod extension to mount a sensor cam, stopper bolt, or secondary tooling. The through-rod also provides better guidance than a single-rod cylinder, though it is not a replacement for a fully guided unit under high side loads.
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