The AirTAC Airtac SCD Standard Cylinder SCD100X50 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø25mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø100mm bore, 50mm stroke, PT1/2 ports and adjustable end cushioning.
The SCD100X50 is a double-acting, double-rod pneumatic cylinder that provides identical thrust in both directions, rated at 3681 N at 0.5 MPa. With a 100 mm bore and a short 50 mm stroke, it uses a 25 mm through-rod extending from both end caps, ensuring perfectly balanced force and speed for compact, two-sided tooling.
This model features adjustable air cushioning over a 29 mm length at each end to decelerate the piston smoothly. The body length A(SCD) is 263 mm, and the PT1/2 port supplies the standard 0.15-1.0 MPa operating range. As a genuine AirTAC tie-rod cylinder, it is built for repetitive, high-cycle tasks where symmetric motion is non-negotiable.
| Model | Airtac SCD Standard Cylinder SCD100X50 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 50 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | 5154 N |
| Max (@1.0 MPa) | 751 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). |
|---|---|
| 100 | 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.
The 50 mm stroke with a rod on both ends allows a single cylinder to push a pallet into position while the rear rod simultaneously resets a return stop, synchronizing two actions with one compact actuator.
Delivers 6626 N of clamping force at 0.9 MPa equally to two opposing jaws. The through-rod design naturally balances the load, preventing the uneven grip common with single-rod cylinders.
Mount a sensor flag on the rear rod extension to confirm full retraction independently from the front tooling. This 100 mm bore provides ample space for a robust DMSG sensor bracket on the tie-rods.
Choose the SCD100X50 when your mechanism needs a compact 50 mm stroke with substantial force capacity—3681 N each way at 0.5 MPa. If you require a lighter, more compact actuator, stepping down to the SCD80 bore reduces force to 2268 N. For applications needing only a single working end, the standard SC100 single-rod cylinder is a simpler, lower-cost alternative.
To replace an existing unit, match the 100 mm bore, 50 mm stroke, PT1/2 port thread, basic mounting, and absence of a magnet. This cylinder is not a guided actuator; for any side load on the exposed rear or front rod, install an external linear guide to prevent premature bushing wear and rod bending.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 3681 N, at 0.7 MPa it delivers 5153 N, and at the maximum operating pressure of 0.9 MPa the force is 6626 N in both directions.
Use the SCD100X50 when you need to mount tooling or a sensor on both ends of the piston rod, or when you require perfectly equal speed and force for the extend and retract strokes. A standard SC100 single-rod cylinder has a higher push force due to the full piston area, but its pull force is significantly lower, making the SCD the correct choice for symmetric bidirectional work.
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