The AirTAC Airtac SCD Standard Cylinder SCD63X150S 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 SCD63X150S is a double-acting, double-rod pneumatic cylinder where the piston rod extends from both ends, giving you identical push and pull force in each direction. At 0.5 MPa this model outputs 1402 N both ways, and at the maximum operating pressure of 0.9 MPa the thrust reaches 2523 N, driven by a 20 mm rod that runs through both caps.
The built-in magnet, signified by the 'S' suffix, allows you to mount CMSG, DMSG, or EMSG reed and solid-state sensors directly on the tie-rod barrel for precise end-of-stroke or mid-stroke position feedback. With a 150 mm stroke and a body length A(SCD) of 210 mm, this cylinder is a compact solution for tasks needing a rear rod for a sensor flag, stopper, or secondary tooling.
| Model | Airtac SCD Standard Cylinder SCD63X150S |
|---|---|
| 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.
The rod extending from both ends allows a single cylinder to power a transfer shuttle that picks up a part on one side and delivers it on the other, with equal 1402 N of force available for both the push and pull stroke at 0.5 MPa.
With the built-in magnet, you can mount a DMSG sensor on the rear end cap to detect the piston's position without interfering with the front tooling. This is ideal for confirming a safe retraction in a two-handed press operation.
The dual 20 mm rods and twin-end support provide inherent anti-rotation, making this cylinder a good fit for a linear pusher in a small assembly machine where adding an external guide rail is difficult.
Choose the SCD63X150S when your application needs equal, controlled force and speed in both directions from a 63 mm bore. If you need more thrust, stepping up to the SCD80 bore provides 2268 N at 0.5 MPa, while stepping down to the SCD50 bore gives 825 N. For applications where you only need force from one end, the single-rod SC series is a simpler and more cost-effective choice.
This cylinder is a direct replacement for any AirTAC SCD63 cylinder of the same 150 mm stroke, PT port thread, and basic mounting, provided the magnet is also required. For a 150 mm stroke, rod bending under side load is generally not a primary concern, but the through-rod design offers better bearing support than a single-rod cylinder, reducing deflection when the load is purely axial.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa, it delivers 1402 N in both directions. At 0.7 MPa, the force is 1962 N, and at the maximum operating pressure of 0.9 MPa, it reaches 2523 N.
You would choose the SCD when you need the piston rod to perform work on both ends of the cylinder, such as mounting a tool on one end and a sensor flag on the other. The dual-rod design also provides equal force and speed in both directions and better guidance against side loads compared to a single-rod cylinder of the same bore.
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