The AirTAC Airtac SCD Standard Cylinder SCD63X150TC 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, 150mm stroke, PT1/4 ports and adjustable end cushioning.
The SCD63X150TC is a double-acting, double-rod pneumatic cylinder that provides identical thrust in both directions—1402 N at 0.5 MPa—because the 20 mm rod passes through both end caps. With a 150 mm stroke and a centre trunnion (TC) mount, it swings freely in the middle, making it ideal for pivoting transfer arms or tooling that needs to actuate from either end of the cylinder.
This 63 mm bore model uses a PT1/4 port and an M16x1.5 rod thread, with an adjustable air cushion of 28 mm at each end to decelerate the piston smoothly. The body length A(SCD) is 210 mm, and the through-rod design provides better bearing support than a single-rod cylinder, helping to resist rotation when the rear rod carries a sensor flag or secondary tooling.
| Model | Airtac SCD Standard Cylinder SCD63X150TC |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø63 mm |
| Rod diameter | Ø20 mm (both ends) |
| Stroke | 150 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. |
| ×150 | 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 or clamps from both ends of the cylinder simultaneously, using the front and rear rod extensions with equal 2523 N of force at 0.9 MPa.
The TC centre trunnion mount lets the cylinder body swing as it strokes, perfect for diverting parts on a conveyor where the gate must pivot from a fixed centre point.
The dual-rod design resists piston rotation better than a single rod. Mount a rigid pusher plate on the front rod and a sensor flag on the rear rod for clean, non-rotating linear guidance.
Choose the SCD63 bore when your application needs around 1400 N of force each way at standard plant pressure. If you can drop to roughly 825 N, the smaller SCD50 (20 mm rod, 825 N at 0.5 MPa) saves space and air consumption. For higher thrust, the SCD80 delivers 2268 N. Because the rod extends from both ends, ensure both sides have clearance; if you only need force from one end, the single-rod SC63 is a simpler choice. This TC variant includes the F-SC63TC centre trunnion bracket, so it mounts directly into a pivoting yoke. To replace an existing unit, match the 63 mm bore, 150 mm stroke, PT port thread, TC mounting, and the absence of a magnet.
Double-rod checklist
Push and pull forces are identical on this double-rod cylinder. At 0.5 MPa it outputs 1402 N, at 0.7 MPa it reaches 1962 N, and at the maximum operating pressure of 0.9 MPa it delivers 2523 N. The theoretical force at 1.0 MPa is 286 kgf.
Choose the SCD when you need equal force and speed in both directions, or when you need to attach tooling, a stopper, or a sensor target to the rear rod. The through-rod also gives the piston better lateral support, reducing rotation compared to a single-rod cylinder, though it is not a substitute for a fully guided unit under heavy side loads.
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