The AirTAC Airtac SCD Standard Cylinder SCD200X100 is a genuine double-acting DOUBLE-ROD air cylinder: the Ø40mm piston rod extends from BOTH end caps, giving equal effective area — and therefore equal force — in push and pull. Ø200mm bore, 100mm stroke, PT3/4 ports and adjustable end cushioning.
The SCD200X100 is a heavy-duty double-rod cylinder that outputs an identical 15080 N of thrust in both directions at 0.5 MPa, thanks to its through-rod design where the 40 mm rod extends from both end caps. This symmetry eliminates force differential, making it ideal for large-scale tooling that requires a rear rod for mounting a stopper, cam, or external sensor flag.
With a 100 mm stroke and a body length A(SCD) of 362 mm, this model fits into machinery where space is available for the extended rear rod housing. The adjustable air cushion on both ends, with a 33 mm cushion length, effectively decelerates high-inertia loads, while the PT3/4 port ensures ample air flow for the 200 mm bore.
| Model | Airtac SCD Standard Cylinder SCD200X100 |
|---|---|
| Series | SCD double-rod tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø200 mm |
| Rod diameter | Ø40 mm (both ends) |
| Stroke | 100 mm |
| Rod configuration | Double rod — rod through both caps |
| Acting type | Double acting |
| Port size | PT3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 33 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | 21111 N |
| Max (@1.0 MPa) | 3075 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). |
|---|---|
| 200 | 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.
Applies equal 15080 N force in both extend and retract strokes, perfect for symmetrical pressing, clamping, or forming operations where the work must be contacted from two sides.
The rear rod extension serves as a mounting point for a secondary tool, limit switch dog, or a visual stroke indicator, enabling complex machine sequences without extra brackets.
Moves large pallets or fixtures between stations with consistent speed and force in both directions, leveraging the through-rod's inherent resistance to piston rotation.
Choose the SCD200X100 when your application demands a balanced push-pull force of 15080 N at 0.5 MPa. If your load requires less force, stepping down to the SCD160 bore reduces output to 9425 N at the same pressure, saving air consumption and cost. For applications needing only a single working direction, the standard SC single-rod series is a more compact and economical choice.
For replacement, match the 200 mm bore, 100 mm stroke, PT3/4 port thread, and the basic mounting configuration. If a magnet is needed for sensor feedback, specify the -S suffix. On a long stroke, an unsupported rod is susceptible to bending under side loads; for this 100 mm stroke, the risk is minimal, but always ensure the load is guided externally if any lateral force is present.
Double-rod checklist
Because it is a double-rod cylinder, the push and pull forces are identical. At 0.5 MPa it produces 15080 N, at 0.7 MPa it's 21111 N, and at the maximum operating pressure of 0.9 MPa it delivers 27143 N. The theoretical force at 1.0 MPa is 3075 kgf.
Choose the SCD when you need perfectly equal force and speed in both directions, or when you need to utilize the rear piston rod for mounting tooling, a brake, or a sensor target. The dual-rod design also provides better guidance and anti-rotation than a single-rod cylinder, though it is not a replacement for a fully guided unit under significant side loads.
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