The AirTAC Airtac SCD Standard Cylinder SCD100X100 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, 100mm stroke, PT1/2 ports and adjustable end cushioning.
The SCD100X100 is a double-acting, double-rod pneumatic cylinder that produces identical push and pull thrust—3681 N at 0.5 MPa—because the 25 mm rod passes through both end caps. This symmetry makes it ideal for applications where a tool or sensor flag must be mounted on the rear rod, or where equal speed and force in both directions is critical.
With a 100 mm stroke, this model stays well within the 1500 mm maximum standard stroke for the 100 bore. The cylinder body has a length of 263 mm (A dimension) and uses PT1/2 ports. An adjustable air cushion at each end, 29 mm long, decelerates the piston smoothly, protecting end-cap components during high-cycle operation.
| Model | Airtac SCD Standard Cylinder SCD100X100 |
|---|---|
| Series | SCD double-rod tie-rod cylinder |
| Bore size | Ø100 mm |
| Rod diameter | Ø25 mm (both ends) |
| Stroke | 100 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. |
| ×100 | 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 equal push/pull force of 3681 N at 0.5 MPa makes this cylinder perfect for shuttle tables that move a fixture or pallet between two stations with identical speed and thrust in each direction.
The exposed rear rod provides a convenient mounting point for a sensor flag or cam, enabling end-of-stroke detection without interfering with the primary tooling on the front rod.
With a rod on both ends, the SCD100X100 can be fixtured to perform a pressing or straightening operation from either side of the cylinder, doubling its utility in a single station.
Choose the SCD100X100 when your application needs balanced bidirectional force around 3681 N at 0.5 MPa. If you require more thrust, step up to the SCD125 bore, which provides 5734 N at the same pressure; for a lighter, more compact solution, the SCD80 bore offers 2268 N. If you only need to push from one end and pull force is less critical, a single-rod SC100 series cylinder may be a simpler and more economical choice.
For a direct replacement, match the 100 mm bore, 100 mm stroke, PT port thread, and basic mounting configuration. If your existing unit has a magnet for sensors, specify the -S suffix. For strokes of 300 mm or longer, consider that the through-rod design improves guidance but does not eliminate side-load limits—add an external guide or switch to a guided cylinder if the load is not perfectly axial.
Double-rod checklist
The push and pull forces are identical because it is a double-rod cylinder. At 0.5 MPa, the force is 3681 N; at 0.7 MPa, it is 5153 N; and at the maximum operating pressure of 0.9 MPa, it reaches 6626 N.
Choose the SCD when you need equal force and speed in both directions, or when you need to mount tooling, a stopper, or a sensor target on the rear rod. The through-rod also provides better guidance and resistance to side-loading than a single-rod cylinder, though it is not a substitute for a fully guided actuator under high side loads.
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